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Rosenberger, David A
Professor
Positions
- Professor, Plant Pathology at Geneva
- Academic Director, Plant Pathology at Geneva
My program is focused on discovering and evaluating strategies for managing tree fruit diseases and on delivering information about fruit disease management to fruit growers, extension educators, private consultants, and agrichemical companies. Because of my location at a field station in the Hudson Valley, a portion of my research is dedicated to fruit diseases that are more common in southeastern New York than in other parts of the state. In addition to working on diseases that occur in the field, I also study the biology and management of fungal pathogens that cause apple decays after harvest.
Research Areas
- adult and extension education
- biological control
- disease control
- fruit and vegetable production
- integrated crop management
- integrated pest management
- microbiology
- organic agriculture
- pathogens
- pest management
- pesticide management
- plant pathology
- postharvest engineering and physiology
- sustainable agriculture
- Affiliations
- Extension
- Research
- Publications
- Teaching
- Service
- Background
- Other
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Affiliations
other Cornell affiliations
Extension
has primary specialization area
Research
research overview
- The objective of my research is to determine the best ways of integrating pesticides, biological information on pathogens, genetic resistance to diseases, and IPM techniques into cost-effective and environmentally sound pest control strategies for apples and other tree fruits. My annual field evaluations of fungicides provide apple growers with information they need to control apple diseases at the lowest possible cost. Apple pathogens included in my studies are Botryosphaeria species that cause cankers and summer fruit decays, Colletotrichum species that cause bitter rot, Zygophiala jamaicensis, the cause of flyspeck, and Penicillium species that cause postharvest decays of apples. I am also studying Fabraea leaf spot on pears and fire blight of apples and pears. As part of my extension assignment, I am frequently called upon to identify unusual diseases and contributing factors in development of epidemics in commercial orchards and apple storages. Results of my research and seasonal observations on disease development are available to cooperative extension clientele via publication in Scaffolds Fruit Journal, a Cornell Extension publication that is available on-line at . For the past 15 years, I have conducted extensive research with Penicillium expansum, a fungal pathogen that causes apple decays during storage. Our research has shown that inoculum for P. expansum in apples recycles from year to year on the bulk bins that are used to store fruit after harvest. We are evaluating postharvest handling methods that will minimize both inoculum loads on bins and the transfer of spores to freshly harvested fruit. Improved sanitation is essential both for controlling Penicillium species and because of food safety concerns and regulations. In a new project, we are assessing impacts of glyphosate herbicide on apple tree health and one the storage life of apples from trees exposed to sublethal doses of glyphosate. Initial results suggest that glyphosate exposure contributes to internal browning, a physiological disorder of apples that develops during storage. We are also attempting to determine if glyphosate's known ability to suppress host plant defense mechanisms may be contributing to outbreaks of various canker diseases.
research activities
area(s) of concentration/expertise
- Adult and Extension Education
- Agriculture Development, Food Systems, Community Development
- Bacterial diseases of fruit crops
- Disease Control and Epidemiology
- Food Safety & Sanitation, Food Microbiology, HACCP, & Regulations
- Integrated Pest Management
- Pathogen biology/pathogen ecology/epidemiology
- Plant disease diagnostics
keywords
- Diseases of tree fruits
- Penicillium expansum
- X-disease of stone fruits
- apple fruit decays
- apple rust diseases
- apple scab
- apple summer diseases
- apple tree cankers
- epidemiology of fungal pathogens
- fire blight
- fungicides for tree fruit
- organic apple production
- postharvest diseases of apples
- tomato ringspot virus on stone fruits
submitted impact statement
Publications
individual publications
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academic article
- Variability among forecast models for the apple sooty blotch/ flyspeck disease complex. Plant Disease. 95. 2011
- Variability among forecast models for the apple sooty blotch/flyspeck disease complex. . Plant Disease. 95:1179-1186. 2011
- Diversity and biogeography of sooty blotch and flyspeck fungi on apple in the eastern and Midwestern United States.. Phytopathology. 100:345-355. 2010
- Relative Susceptibility of Selected Apple Cultivars to Sooty Blotch and Flyspeck. Plant Health Progress. 2010
- Relative susceptibility of selected apple cultivars and selections to apple scab caused by Venturia inaequalis.. Plant Health Progress. On-line:. 2010
- Relative susceptibility of selected apple cultivars and selections to powdery mildew caused by Podosphaera leucotricha.. Plant Health Progress. 2009
- Relative susceptibility of selected apple cultivars to cedar apple rust and quince rust.. Plant Health Progress. 2009
- Effect of apple scab fungicide programs on colonization and survival of Botryosphaeria spp. in mummified apple fruitlets in NY. Phytopathology. 98. 2008
- Effect of apple scab fungicide programs on colonization and survival of Botryosphaeria spp. in mummified apple fruitlets in NY. Phytopathology. 98. 2008
- Effects of oil sprays on development of Fabraea leaf spot in pears. American Phytopathological Society, The. 2. 2008
- Multidisciplinary evaluation of new apple cultivars: the NE-183 regional project 1999 planting.. Journal of American Pomological Society. 61:78-83. 2007
- Penicillium expansum invades apples through stems during controlled atmosphere storage. Plant Health Progress. 2006
- Susceptibility of Penicillium expansum spores to sodium hypochlorite, electrolyzed oxidizing water and chlorine dioxide solutions modified with non-ionic surfactants. Journal of Food Protection. 69:1944-1948. 2006
- Performance of apple cultivars in the 1995 NE-183 regional project planting: I. Growth and yield characteristics. Journal of American Pomological Society. 59:18-27. 2005
- A comparison of methods used to estimate the maturity and release of ascospores of Venturia inaequalis. Plant Disease Journal. 88:869-874. 2004
- Controlling bitter pit in ‘Honeycrisp’ apples. HortTechnology. 14:342-349. 2004
- Multidisciplinary evaluation of new apple cultivars: The NE-183 regional project. Journal of American Pomological Society. 58:61-64. 2004
- Effect of sterol-demethylation inhibiting fungicides on apple fruit set, fruit size, total yield and gross returns. HortScience. 38:601-604. 2003
- Post-symptom sprays of Prohexadione-calcium affect fire blight infection of ‘Gala’ apple on susceptible and resistant rootstocks. HortScience. 37:903-905. 2002
- Effects of management practices and fungicides on sooty blotch and flyspeck diseases and productivity of Liberty apples. Plant Disease. 80:798-803. 1996
- A storage decay of apple fruit caused by Aureobasidium pullulans (disease note). Plant Disease. 79:425. 1995
- Comparison of mulches, herbicides, and cultivation systems for orchard groundcover management. HortTechnology. 5:151-158. 1995
- Early-season diseases occurring on scab-resistant apple cultivars and advanced selections grown in southeastern New York State. Fruit Varieties Journal. 48:52-53. 1994
- Evaluation of four new scab-resistant apple varieties compared with ‘Empire’ in New York orchards. Fruit Varieties Journal. 48:54-56. 1994
- Field evaluation of scab-resistant cultivars compared with ‘Empire’ in New York orchards. Fruit Varieties Journal. 48:54-56. 1994
- Scab-resistant apples for the northeastern USA: New prospects and old problems. Plant Disease. 78:4-10. 1994
- Summer fungicides applied to ‘Liberty’ apple trees affect timing of autumn leaf drop and effectiveness of fruit thinning with NAA the next year. Fruit Varieties Journal. 48:56-57. 1994
- Choose your poison. Science. 261:815-816. 1993
- Delaying the onset of fungicide programs for control of apple scab in orchards with low potential ascospore dose of Venturia inaequalis. Plant Disease. 77:372-375. 1993
- The occurrence of enlarged stipules on leaves of sweet cherries with X-disease in New York (disease note). Plant Disease. 77:756. 1993
- Disparity between morphological maturity of ascospores and physiological maturity of asci in Venturia inaequalis. Plant Disease. 76:277-282. 1992
- Variation and error in estimates of ascospore maturity and discharge derived from examination of crushed pseudothecia of Venturia inaequalis. Plant Disease. 76:717-720. 1992
- Pathogenicity and benzimidazole resistance in Penicillium species recovered from flotation tanks in apple packinghouses. Plant Disease. 75:712-715. 1991
- Variance in estimates of ascospore maturity and discharge in Venturia inaequalis. Phytopathology. 80:973. 1990
- Evidence that tomato ringspot virus causes apple union necrosis and decline: Symptom development in inoculated apple trees. Plant Disease. 73:262-265. 1989
- Integration of pesticide application schedules for disease and insect control in apple orchards of the northeastern United States. Plant Disease. 73:98-105. 1989
- Control of dagger and lesion nematodes in apple and plum orchards with fenamiphos, carbofuran, and carbosulfan. Plant Disease. 72:519-522. 1988
- Negatively correlated cross-resistance to diphenylamine in benomyl-resistant Penicillium expansum. Phytopathology. 75:74-79. 1985
- Effect of black knot incidence on yield of Stanley prune trees and economic benefits of fungicide protection. Plant Disease. 68:1060-1064. 1984
- Orchard weeds as hosts of tomato ringspot and tobacco ringspot virus. Plant Disease. 68:242-244. 1984
- Failure of canker removal and postharvest fungicide sprays to control Nectria twig blight on apples. Plant Disease. 67:15-17. 1983
- Failure of canker removal and postharvest sprays to control Nectria twig blight on apples. Plant Disease. 68:976-978. 1983
- Incidence of apple union necrosis and decline, tomato ringspot virus, and Xiphinema vector species in Hudson Valley orchards. Plant Disease. 67:356-360. 1983
- Fruit decays of peach and apple caused by Phomopsis mali. Plant Disease. 66:1073-1075. 1982
- Postharvest fungicides for apples: Development of resistance to benomyl, vinclozolin, and iprodione. Plant Disease. 65:1010-1013. 1981
- Occurrence of benomyl-resistant strains of Botrytis cinerea on apples, beans, and grapes. Plant Disease. 64:316-318. 1980
- Benomyl-tolerant Penicillium expansum in apple packinghouses in eastern New York. Plant Disease Reports. 63:37-40. 1979
- Fungicide strategies for control of benomyl-tolerant Penicillium expansum in apple storage. Plant Disease Reports. 63:1033-1037. 1979
- Inhibitory effect of some potato-dextrose agar preparations on germination of pycnidiospores of Leucostoma species. Plant Disease Reports. 63:793-795. 1979
- Leafhopper vectors of the peach X-disease pathogen and its seasonal transmission from chokecherry. Phytopathology. 68:782-790. 1978
- Seasonal variation in infectivity of inoculum from X-diseased peach and chokecherry plants. Plant Disease Reports. 61:1022-1024. 1977
- Spread of X-disease in Michigan peach orchards. Plant Disease Reports. 61:830-834. 1977
- A graft-transmissible agent associated with bark-and wood-grooving disease of peach and nectarine. Phytopathology. 66:729-730. 1976
- Leafhopper fauna of X-diseased peach and cherry orchards in southwest Michigan. Journal of Economic Entomology. 68:255-257. 1975
- Association of mycoplasma-like bodies with little peach and X-disease. Phytopathology. 64:755-756. 1974
- Mycoplasma-like bodies associated with peach and periwinkle exhibiting symptoms of peach yellows. Phytopathology. 64:1154-1156. 1974
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article
- Controlling apple mildew 2012
- Controlling apple mildew 2012
- Controlling apple mildew 2012
- Controlling apple powdery mildew after the disease is evident 2012
- Disease management suggestions for frost-damaged orchard 2012
- Disease management suggestions for frost-damaged orchards 2012
- Disease management suggestions for frost-damaged orchards 2012
- Disease management suggestions for frost-damaged orchards 2012
- Disease management suggestions for frost-damaged orchards 2012
- Fungicide label warnings and restrictions 2012
- Fungicide label warnings and restrictions 2012
- Managing Apple Scab in High Inoculum Orchards 2012
- Managing Apple Scab in High Inoculum Orchards 2012
- Managing Apple Scab in High Inoculum Orchards 2012
- Managing Apple Scab in High Inoculum Orchards 2012
- Managing Apple Scab in High Inoculum Orchards 2012
- Managing Apple Scab in High Inoculum Orchards. 2012
- Options, benefits, and liabilities for copper sprays in tree fruits 2012
- Options, benefits, and liabilities for copper sprays in tree fruits 2012
- Options, benefits, and liabilities for copper sprays in tree fruits 2012
- Precautions for avoiding phytotoxicity with postharvest bin-top treatments on apples 2012
- Precautions for avoiding phytotoxicity with postharvest bin-top treatments on apples 2012
- Questions about Indar for brown rot 2012
- Sanitize apple storage rooms to minimize postharvest decays 2012
- Spray incompatibility note 2012
- Spray incompatibility note 2012
- Trial studies glyphosate's effects on internal browning. Fruit Grower News. :16-18. 2012
- Using Apogee to manage fire blight and improve fruit finish 2012
- Using Apogee to manage fire blight and improve fruit finish 2012
- Adjusting fungicide rates to maximize control of apple scab 2011
- Critical updates for apple storage operators 2011
- Critical updates for apple storage operators 2011
- Critical updates for apple storage operators 2011
- Disease management during prolonged wetting periods 2011
- Disease management during prolonged wetting periods 2011
- Disease management during prolonged wetting periods 2011
- Disease management during prolonged wetting periods 2011
- Fungicide options for controlling storage decays of apples 2011
- Fungicide options for controlling storage decays of apples 2011
- New option for controlling Fabraea fruit and leaf spot on pears 2011
- Now batting cleanup: Playing catch-up on scab control between green tip and tight cluster 2011
- Pear blast 2011
- Risks and benefits of using non-recycling drenches to apply DPA and postharvest fungicides to apples 2011
- Selecting apple fungicides for controlling scab and mildew. 2011
- Selecting apple fungicides for controlling scab and mildew. 2011
- Spring copper sprays for fruit diseases. 2011
- Spring copper sprays for fruit diseases. 2011
- Spring copper sprays for fruit diseases. 2011
- Spring copper sprays for fruit diseases. 2011
- The summer disease threat for apples. 2011
- The summer disease threat for apples. 2011
- The summer disease threat for apples. 2011
- The summer disease threat for apples. 2011
- A new paradigm for controlling apple scab 2010
- A new paradigm for controlling apple scab 2010
- A new paradigm for controlling apple scab 2010
- A new paradigm for controlling apple scab 2010
- A new paradigm for controlling apple scab 2010
- A phytotoxic chain of events 2010
- Apple diseases targeted by early cover sprays 2010
- Apple diseases targeted by early cover sprays 2010
- Apple scab management options for high inoculum orchards. 2010
- Black knot on plums 2010
- Black knot on plums 2010
- Controlling powdery mildew on apples 2010
- Evaluation of low-volume, non-recycling drenches for controlling postharvest diseases and disorders of apples 2010
- Fire blight alert 2010
- Fire blight alert 2010
- How fungicide resistance is changing the way we control apple scab 2010
- Optimizing fungicide programs for apples 2010
- Optimizing fungicide programs for apples 2010
- Optimizing fungicide programs for apples 2010
- Optimizing fungicide programs for apples 2010
- Potential non-target effects of glyphosate on apples 2010
- Potential non-target effects of glyphosate on apples 2010
- Potential non-target effects of glyphosate on apples 2010
- Rethinking postharvest drench treatments for apples 2010
- Scab update for the Hudson Valley 2010
- A review of apple scab fungicides for 2009 2009
- A review of apple scab fungicides for 2009 2009
- A review of apple scab fungicides for 2009 2009
- Act now to reduce scab inoculum in problem orchards 2009
- Act now to reduce scab inoculum in problem orchards 2009
- Act now to reduce scab inoculum in problem orchards 2009
- Act now to reduce scab inoculum in problem orchards 2009
- Controlling powdery mildew on apples 2009
- Controlling powdery mildew on apples 2009
- Controlling summer diseases on apples 2009
- Controlling summer diseases on apples 2009
- Controlling summer diseases on apples 2009
- Controlling summer diseases on apples 2009
- Dealing with secondary apple scab 2009
- Dealing with secondary apple scab 2009
- Expect fungicide supply complications for 2009 2009
- Expect fungicide supply complications for 2009 2009
- Expect fungicide supply complications for 2009 2009
- Expect fungicide supply complications for 2009 2009
- Expect fungicide supply complications for 2009 2009
- Expect fungicide supply complications for 2009 2009
- Fritz Meyer retires after 35 years at the Hudson Valley Lab, 2009
- Fungicides, biocides, and sanitizers for managing postharvest pathogens in apples. NY Fruit Quarterly. 17(3):3-6. 2009
- Heavy rains raise risks for Phytophthora root and crown rot 2009
- Heavy rains raise risks for Phytophthora root and crown rot 2009
- Heavy rains raise risks for Phytophthora root and crown rot 2009
- Indar fungicide may be useful for controlling apple summer diseases and brown rot on plums 2009
- Indar fungicide may be useful for controlling apple summer diseases and brown rot on plums 2009
- Inspire Super MP: will it prove useful in NY 2009
- Inspire Super MP: will it prove useful in NY 2009
- Inspire Super MP: will it prove useful in NY 2009
- Late season scab and implications for storage 2009
- Late season scab and implications for storage 2009
- Late season scab and implications for storage 2009
- Late season scab and implications for storage 2009
- Postharvest fungicides for apples in 2009 2009
- Reasons to not stop spraying for scab when the model says 95% of spores are discharged 2009
- Resistance management for brown rot on peaches and plums 2009
- Resistance management for brown rot on peaches and plums 2009
- Resistance management for brown rot on peaches and plums 2009
- Sanitizers and biocides for apple storage and packing operations 2009
- Using Phosphite Fungicides to Control Apple Diseases 2009
- Using phosphite fungicides to control apple diseases. NY Fruit Quarterly. 17(2):9-13. 2009
- Apple replant disease 2008
- Apple scab advisory: early onset potential 2008
- Apple scab control - rain or not! 2008
- Apple scab warning 2008
- Black rot or sooty molds? 2008
- Cedar rust diseases 2008
- Controlling apple scab when it doesn't rain 2008
- Controlling apple scab when it doesn't rain 2008
- Controlling apple scab when it doesn't rain 2008
- Distinguishing black rot from sooty mold around pruning wounds 2008
- Early leaf drop on Golden Delicious 2008
- Fungicide research benefits apple farmers, consumers, and the environment 2008
- Getting into apples 2008
- Options for controlling secondary scab 2008
- Options for controlling secondary scab 2008
- Options for controlling secondary scab 2008
- Postharvest fungicides for apples in 2008 2008
- Preharvest and postharvest strategies for handling hail-damaged apples 2008
- Preharvest and postharvest strategies for handling hail-damaged apples 2008
- Sanitizers & biocides in apple storage & packing operations 2008
- The root of storage rots & first lines of defense 2008
- Thinking organic? 2008
- Using sanitizers and biocides in apple storage and packing operations 2008
- Why apples may need a fungicide spray during September 2008
- Apple replant disease 2007
- Calculating the carbon footprint 2007
- Canker problems in apple orchards 2007
- Controlling Fabraea fruit and leaf spot on pears 2007
- Controlling late summer apple diseases without Topsin M. 2007
- Controlling powdery mildew on apples 2007
- Controlling the blossom blight phase of fire blight 2007
- Early-season copper sprays 2007
- Making "the best" last: Controlling brown rot in the face of fungicide resistance 2007
- Organic disease control for apples 2007
- Timing summer fungicides to control flyspeck disease on apples 2007
- Apple scab fungicide strategies for 2006 2006
- Causes of early-summer leaf spots Part I 2006
- Causes of early-summer leaf spots Part II: Phytotoxicity 2006
- Comment on fungicide rates in the Cornell Pest Management Guidelines 2006
- Controlling flyspeck on apples 2006
- Controlling flyspeck prior to harvest 2006
- Controlling the shoot blight phase of fire blight in apple orchards 2006
- Effects of 1-MCP on incidence and severity of decay in stored apples 2006
- First case of brown rot resistance to Indar in New York 2006
- Fungicide options for decay control 2006
- Inoculum levels impact disease control 2006
- Keeping apples disease-free during storage and shipping 2006
- New options for decay control: Fungicides, sanitation, and the impact of 1-MCP 2006
- Postharvest fungicides for apples. Pennsylvania Tree Fruit Production Guide, Part VI: Harvest and Postharvest. . 2006
- Recent studies on inoculum sources for Penicillium expansum and implications for controlling blue mold decay of apples 2006
- Sanitation in storages and packinghouses 2006
- Summer disease control 2006
- The apple industry in China 2006
- Update on apple scab and X-disease 2006
- A downside to club varieties? 2005
- Avoiding frustrating and expensive spray glitches 2005
- Blossom-end rot of apple: Phantom of the orchard? 2005
- Could “Green” Approaches to Scab Control Improve Profitability? 2005
- Early-spring disease controls for stone fruit 2005
- Field and postharvest strategies for controlling storage diseases of apples 2005
- Fungicide resistance of apple scab: Status quo and management options 2005
- How to Control Apple Scab: Relearning What Your Father Knew 2005
- Jump starting apple scab control programs in high-inoculum orchards 2005
- Maintaining biocide levels in water flumes in packing houses 2005
- Managing apple scab resistance to fungicides 2005
- New fruit fungicides registered for use in New York State 2005
- New fungicide options for postharvest decay control 2005
- New fungicides for postharvest use 2005
- Observations for the IDFTA China tour and implications for the US apple industry 2005
- Options for controlling powdery mildew on apples 2005
- Post-bloom fungicides for stone fruits 2005
- Pristine — a new fungicide registered in NY 2005
- Revising apple scab controls to compensate for high inoculum and failing fungicides 2005
- Scab control precautions 2005
- Suggestions for improving packinghouse sanitation 2005
- Timing sprays for flyspeck and sooty blotch 2005
- Apple tree deaths attributable to herbicides? 2004
- Calcium nutrition and control of calcium-related disorders 2004
- Controlling postharvest apple decays via pre-harvest clean-up and harvest labor training 2004
- Managing fire blight after bloom 2004
- Necrotic leaf blotch of Golden Delicious apples 2004
- Nectria twig blight 2004
- Options for postharvest fungicide treatments on apples 2004
- Revising scab control strategies for 2004 2004
- Sooty blotch and flyspeck 2004
- Summer fruit rots 2004
- Apple scab management for 2003: Preventive programs are essential 2003
- Apple scab update 2003
- Diphenylamine 2003
- Further comments on scab management programs 2003
- Managing bitter pit in Honeycrisp 2003
- Managing bitter pit in Honeycrisp 2003
- Managing diseases and arthropod pests on Honeycrisp 2003
- Managing late season fruit scab 2003
- Nectria Twig Blight 2003
- Powdery Mildew 2003
- Protecting fruit from apple scab in orchards with visible scab lesions 2003
- Rust Diseases 2003
- Spring copper sprays for fruit diseases 2003
- Summer disease update 2003
- Susceptibility of new apple cultivars to common apple diseases 2003
- Weather and potential for captan phytotoxicity 2003
- A review of strategies for controlling apple scab and mildew in 2002 2002
- Apple scab maturity update 2002
- Clean up before apple harvest to minimize postharvest decay problems 2002
- Determining the end of the primary apple scab season 2002
- Development of new postharvest fungicides for apples 2002
- Effects of foliar applications of calcium, boron, and Flint fungicide on incidence of bitter pit 2002
- Fungicide programs for orchards with total crop loss 2002
- Managing fungicide resistance in apple orchards 2002
- Preventing postharvest decays of apple fruit 2002
- Resistance is futile 2002
- Reviewing causes of postharvest decays in apples 2002
- Summer fruit rots 2002
- Adjusting apple fungicide programs to compensate for SI resistance 2001
- Apogee: A new plant growth regulator for apples 2001
- Apogee: A new plant growth regulator for apples 2001
- Apple tree nutrition affects susceptibility of Empire fruit to blue mold decay 2001
- Assessing ascospore maturity of Venturia inequalis 2001
- Fungicide strategies for control of apple scab and mildew in 2001 2001
- Fungicide strategies for control of apple scab and mildew in 2001 - Part II 2001
- Honeycrisp: Promising profit maker or just a problem child? 2001
- Honeycrisp: promising profit maker or just another problem child 2001
- Honeycrisp: promising profit maker or just another problem child? 2001
- Hudson Valley Apple Scab Updates 2001
- Inoculum cycling and control of Penicillium expansum 2001
- Managing Honeycrisp for production and quality 2001
- Managing Honeycrisp for production and quality 2001
- Post Infection Apogee Applications for Fire Blight Control 2001
- Postharvest pathogens create problems for storage 2001
- Sanitation methods for apple packinghouses explored 2001
- Sooty blotch and flyspeck 2001
- Using Apogee to help manage fire blight 2001
- Why Syllit remains a low-ranked scab option 2001
- Apple disease control with new fungicides 2000
- Apple disease management at petal fall 2000
- Apple scab update 2000
- Black rot cankers and white rot cankers 2000
- Controlling Fabraea leaf spot on pear and quince 2000
- Delayed Dormant Copper: Weather and Phytotoxicity Risk 2000
- Disease developments 2000
- Disease management in hail-damaged orchards 2000
- Field evaluations of Flint and Sovran for controlling apple diseases 2000
- Fire blight rundown 2000
- Honeycrisp or others: Top-working tips 2000
- Manage mildew to avoid fungicide resistance 2000
- Managing fire blight during summer 2000
- New fruit fungicides for old diseases 2000
- Pathology and Weather: Rule of thumb observations 2000
- Peach diseases initiated after petal fall 2000
- Plum pox virus and how New York is responding 2000
- Postharvest pathogens create new problems for apple storages 2000
- Progress in understanding and controlling postharvest decays of apples 2000
- X-disease in peaches and cherries 2000
- A retrospective on apple scab in ’98 and suggestions for ’99 1999
- Apple scab update 1999
- Attempt to limit information exchange shortsighted 1999
- Black knot on plums 1999
- Calyx-end rot of apples 1999
- Cleaning storages and apple bins to minimize postharvest decay problems 1999
- Cleaning storages, bins reduces postharvest decay losses 1999
- Controlling storage decays in empire fruit during CA storage 1999
- Controlling summer diseases in a dry year 1999
- Disease update 1999
- Don’t burn the fruit! 1999
- Hudson Valley disease update 1999
- More on controlling apple scab 1999
- Peach disease update 1999
- Prebloom sprays for scab and mildew 1999
- Rust diseases, fire blight, and nectria twig blight 1999
- Scarf skin on apples 1999
- What we have learned about new apple varieties 1999
- What we have learned about new apple varieties 1999
- A unified approach for marketing new apple varieties 1998
- Apple scab 1998
- Beware of storage scab 1998
- Calyx-end rot of apples 1998
- Controlling postharvest decays on apples 1998
- Controlling postharvest decays on apples 1998
- Controlling powdery mildew 1998
- Controlling secondary spread of apple scab 1998
- Designing new apple plantings to minimize diseases and increase profitability 1998
- Developing improved controls for postharvest decays of apples 1998
- Disease control and spray coverage 1998
- Disease updates 1998
- Editorial: A unified approach for marketing new apple varieties 1998
- Leaf spotting on apples 1998
- Pear blossom blast 1998
- Pear problems: blast, frost, and fabraea 1998
- Rust diseases 1998
- Summer diseases in apples 1998
- Summer spray programs for apple orchards with scab 1998
- Timing apple fungicide sprays around bloom 1998
- Understanding apple scab infection periods 1998
- X-disease in peaches 1998
- Comments on postharvest decays 1997
- Controlling Apple Scab in 1997 1997
- Controlling Summer Diseases 1997
- Controlling postharvest decays on apples 1997
- Disease updates 1997
- Fire blight 1997
- Fire blight, black rot, and fabraea on pears 1997
- Pear blossom blast 1997
- Planning for postharvest treatments on apples 1997
- Powdery mildew 1997
- Prepare now to initiate scab sprays! 1997
- Review of 1997 tree fruit disease problems 1997
- Rust diseases 1997
- Sooty blotch and flyspeck 1997
- Sooty blotch and flyspeck 1997
- Sooty blotch and flyspeck 1997
- A correction and a caution on postharvest Urea sprays to control scab 1996
- A stitch in time ...? Fall treatments for reducing scab inoculum for 1997 1996
- A summary of five years of field research with scab-resistant apple cultivars 1996
- Adjusting fungicide programs to control black rot fruit decay 1996
- Black rot fruit decay: A growing problem in northeastern apple orchards 1996
- Chlorinated water can be effective in apple handling systems 1996
- Comparative susceptibility of 25 apple cultivars to powdery mildew and cedar apple rust 1996
- Controlling peach leaf curl 1996
- Controlling postharvest decays and diseases on apples 1996
- Disease updates 1996
- Fabraea on pears 1996
- Fall copper sprays for stone fruits 1996
- Fungicide programs for hail-damaged blocks 1996
- Late-season apple scab in a cool wet year 1996
- Late-season apple scab in a cool, wet year 1996
- Marshall Mac canker: Will delayed defoliation last fall cause problems this spring? 1996
- Necrotic leaf blotch of Golden Delicious 1996
- Peach X-disease 1996
- Peach constriction disease 1996
- Pear blossom blast 1996
- Planning for postharvest treatments for apples 1996
- Postharvest treatments for apples 1996
- Risks and benefits of copper sprays 1996
- Rust diseases 1996
- Summer diseases on apple 1996
- Summer spores: Fruit disease update 1996
- A summary of five years of field research with scab-resistant apple cultivars 1995
- An update on scab-resistant apple cultivars and advanced selections for consideration in new plantings 1995
- Brown rot fungicides 1995
- Disease control options 1995
- Disease updates 1995
- End-of-the-season wrap-up on tree fruit diseases and disorders 1995
- Fabraea on pears 1995
- Postharvest fungicide treatments for apples in 1995 1995
- Powdery mildew 1995
- Rust diseases 1995
- Scarf skin 1995
- Summer sprays and storage decays: Is there a relationship? 1995
- Using thiabendazole in postharvest apple drenches 1995
- Winter damage in young trees 1995
- Are apple fungicides providing more benefits than generally recognized? 1994
- Black knot on plums 1994
- Cankers and twig blights 1994
- Copper sprays 1994
- Dapple Apple 1994
- Disease updates 1994
- Fabraea on pears 1994
- Fire blight 1994
- Managing summer diseases of apples 1994
- Managing summer diseases of apples 1994
- New decay problem on empire 1994
- Postharvest fungicides for apples 1994
- Powdery mildew 1994
- Questions and answers about the integrated production. Agrofórum. 5:12-18. 1994
- Rubigan-Nova comparisons 1994
- Rust diseases 1994
- Rust-induced leaf spots and powdery mildew on scab-resistant apple cultivars are affected by planting location 1994
- Silver leaf 1994
- Summary of recent research and observations on controlling fruit diseases 1994
- Summer diseases 1994
- The New York State Hort Society: Does it have a role in unifying the fruit industry of New York State? 1994
- Using chlorinated water in apple handling systems 1994
- Disease updates 1993
- Minimizing the risks of phytotoxicity from prebloom copper sprays applied to control fire blight 1993
- Postharvest fungicides for apples 1993
- Recharging postharvest drench solutions used for apples 1993
- Recommendations for summer disease control in apples in 1993 1993
- Report on joint US-Hungarian project on sustainable production systems for apples 1993
- Rust diseases 1993
- Sooty blotch and flyspeck on ‘Liberty’ apples: Impacts of the diseases on projected value of the crop and unexpected impacts of summer fungicides 1993
- Summer diseases 1993
- Unknown marking on pear fruit; Marshall Mac die-back 1993
- Using chlorinated water in apple handling systems 1993
- A dead horse? (sprayer calibration) 1992
- Apple scab; Fire blight; Frog-eye leaf spot; Quince rust 1992
- Apple scab; Update on MaryBlyt predictions for Hudson Valley 1992
- Comments on apple disease control 1992
- Evaluation of fungicides for Fabraea leaf spot on Bosc pears, 1991 1992
- Hudson Valley Lab Field Notes (apple scab) 1992
- IPM strategies for postharvest diseases of apples 1992
- Improving the performance of postharvest drenching equipment 1992
- Necrotic leaf blotch of Golden Delicious; Late-season spread of fire blight in Gala 1992
- Postharvest drenches for apples 1992
- Pros, cons and costs of alternative orchard mulches 1992
- Recommendations for controlling fire blight 1992
- Rust disease and a brown leaf spot caused by rust; Bitter rot 1992
- Summer Disease Control in Apples 1992
- The latest work from New York 1992
- Postharvest fungicides for apples in 1991 1991
- Early copper applications: Effect on scab in the Hudson Valley 1990
- Fungicides for postharvest drenches 1990
- Postharvest integrated pest management 1990
- Research News from Around the World 1990
- Mulches for apple trees? 1989
- Sooty blotch and fly speck management 1989
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book
-
booksection
-
chapter
- Diseases. Concise Encyclopedia of Temperate Zone Tree Fruits. 2003
- Apple. The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Crops. 2002
- Apple Postharvest Quality Maintenance Guidelines. The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Crops. 2002
- Apple disease management. Management Guide for Low-Input Sustainable Apple Production. 1990
- Evaluating fungicides for control of black knot of plums. Methods for Evaluating Pesticides for Control of Plant Pathogens. 1986
- Evaluating fungicides for control of postharvest decay of pome fruits. Methods for Evaluating Pesticides for Control of Plant Pathogens. 1986
- Fastidious prokaryotes: Epidemiology of the hidden pathogens. Phytopathogenic Prokaryotes. 71-100. 1982
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conference paper
- Biology and control of apple powdery mildew. . Proc. Great Lakes Fruit, Vegetable, & Farm Market Expo, 4-6 Dec. 2012, Grand Rapids, MI.. 2012
- Improving apple scab management via inoculum reduction, fungicide selection, and spray timing. Proc. Great Lakes Fruit, Vegetable, & Farm Market Expo, 4-6 Dec. 2012, Grand Rapids, MI.. 2012
- Understanding risks and benefits of copper products for tree fruits. Proc. Great Lakes Fruit, Vegetable, & Farm Market Expo, 4-6 Dec. 2012, Grand Rapids, MI.. 2012
- Fire blight control strategies. Proc. New England Vegetable and Fruit Conference. 2011
- Flesh browning again! Updates on effects of temperature, CA, glyphosate and minerals. Cornell Storage Workshop Proceedings. Dept. Hort. Publ. 69. 2011
- How will new fungicides fit into apple disease control programs?. Proc. 86th Cumberland-Shenandoah Fruit Workers Conference. 131-136. 2011
- Is glyphosate compromising apple tree health?. Proc. 86th Cumberland-Shenandoah Fruit Workers Conference. 144-149. 2011
- Postharvest fungicide options and fungicide resistance management.. Cornell Storage Workshop Proceedings. Dept. Hort. Publ. 69 (pp. 17pp). 2011
- Risks and benefits of using non-recycling drenches to apply DPA and postharvest fungicides.. Cornell Storage Workshop Proceedings. Dept. Hort. Publ. 69 (pp. 17pp). 2011
- Understanding the limitations of newer apple fungicides.. Proc. New England Vegetable and Fruit Conference. 2011
- Benefits and limitations of new apple fungicides. Proc. 85th Cumberland-Shenandoah Fruit Workers Conference, 19-20 Nov. 2009, Winchester, VA. 218-221. 2010
- Evaluating new stone fruit rootstocks and cultivars for susceptibility to X-disease and tomato ringspot virus. Proc. 85th Cumberland-Shenandoah Fruit Workers Conference, 19-20 Nov. 2009, Winchester, VA. 222-229. 2010
- Evaluation of pruning techniques and bactericides for managing bacterial canker of sweet cherry. Proc. 85th Cumberland-Shenandoah Fruit Workers Conference, , 19-20 Nov. 2009, Winchester, VA. 2010
- Evaluation of pruning techniques and bactericides for managing bacterial canker of sweet cherry. 2009 Great Lakes Fruit Workers Meeting, Fishkill, NY, Abstracts. 2010
- Relative susceptibility of selected apple cultivars to cedar apple rust, quince rust, powdery mildew, and apple scab. Proc. 85th Cumberland-Shenandoah Fruit Workers Conference, , 19-20 Nov. 2009, Winchester, VA. 2010
- Benefits and limitations of new apple fungicides. Proc. 85th Cumberland-Shenandoah Fruit Workers Conf.. 2009
- Re-thinking fungicide strategies for apples. Empire State Fruit and Vegetable Expo. 2009
- Tree fruit disease in the Hudson Valley. Proc. Great Lakes Fruit Workers Ann. Mtg., Fishkill, NY. 69. 2009
- Weak links in current apple disease control strategies. Proc. Great Lakes Fruit Workers Ann. Mtg., Fishkill, NY. 67-68. 2009
- Effects of bactericide and insecticide sprays on spread of fire blight during summer. Great Lakes Fruit Workers Annual Meeting Abstracts. 40-42. 2008
- Oil sprays control Fabraea leaf spot on pears. Abstracts of the 2008 Ann. Mtg. of the Northeastern Division of Am. Phytopathol. Soc. 2008
- Phosphite fungicides have limited benefits in apple fungicide programs. Great Lakes Fruit Workers Annual Meeting Abstracts. 37-39. 2008
- Using phosphite fungicides to control sooty blotch and flyspeck on apples. Abstracts of the 2008 Ann. Mtg. of the Northeastern Division of Am. Phytopathol. Soc.. 2008
- Can preharvest fungicide sprays control postharvest decays of apples?. Proc. 83rd Cumberland-Shenandoah Fruit Workers Conference. 114-115. 2007
- Impact of organic pest control on productivity of 15 apple cultivars. Proc. 83rd Cumberland-Shenandoah Fruit Workers Conference. 26-40. 2007
- Managing apple diseases organically. Proc. 2007 Empire State Fruit & Vegetable Expo. 24-26. 2007
- Phosphite fungicides: A new tool for apple disease control?. Proc. 83rd Cumberland-Shenandoah Fruit Workers Conference. 126-131. 2007
- What can growers do in the orchard to control rots in storage. Proc. 2007 Empire State Fruit & Vegetable Expo. 15-18. 2007
- A selective medium for recovering Penicillium from soil. Proc. 2005 Ann. Mtg. Northeastern Div. Am. Phytopathol. Soc.. 2006
- Control strategies for orchards with SI-resistant apple scab: lessons from the Champlain Valley 2006. Proc. 82nd Cumberland-Shenandoah Fruitworkers Meetings. 209-212. 2006
- Early August heat affects Honeycrisp fruit. Scaffolds Fruit Journal. 3-4. 2006
- Effect of 1-methylcyclopropene on susceptibility of apples to postharvest decays. Proc. 2006 Ann. Mtg. American Phytopathol. Soc.. 2006
- Effectiveness of Vangard and Scala for prebloom scab control. Proc. 82nd Cumberland-Shenandoah Fruitworkers Meetings. 228-229. 2006
- Impressions of apple pest management in China. Proc. 2006 Empire State Fruit & Vegetable Expo. 11-13. 2006
- Postharvest Disease Control on Apples: Past, Present, & Future. Proc. 82nd Cumberland-Shenandoah Fruitworkers Meetings. 156-159. 2006
- Quaternary ammoniaum sanitizer eliminates airborne spores of Penicillium expansum. Proc. 2005 Ann. Mtg. Northeastern Div. Am. Phytopathol. Soc.. 2006
- Susceptibility of new apple cultivars to rust diseases in southeastern New York. Proc. 2006 Ann. Mtg. American Phytopathol. Soc.. 2006
- Urea for scab inoculum reduction in problem orchards?. Scaffolds Fruit Journal. 3-5. 2006
- Inoculum sources of Penicillium expansum and implications for controlling blue mold decay of apples. Proc. 81st Cumberland-Shenandoah Fruitworkers Meetings. 122-125. 2005
- Management of flyspeck disease of apple based on maturation of the causal agent (Schizothyrium pomi), wetting hours, and fungicide properties. Phytopathology. 2005
- New options for decay control: Fungicides, sanitation, and the impact of 1-MCP. Apple Handling and Storage. 40-46. 2005
- Post-infection control of apple scab with Syllit, Vangard, and Scala. Proc. 81st Cumberland-Shenandoah Fruitworkers Meetings. 169-172. 2005
- Post-infection control of flyspeck with new fungicides. Proc. 81st Cumberland-Shenandoah Fruitworkers Meetings. 155-159. 2005
- Powdery mildew control and fungicide resistance management. Proc. 2005 Empire State Fruit & Vegetable Expo. 4-6. 2005
- Sensitivity of Penicillium expansum isolates to the phenylpyrrole fungicide fludioxonil. Phytopathology. 2005
- Summer disease control. Proc. 2005 Empire State Fruit & Vegetable Expo. 11-13. 2005
- Apple scab management. Proc. Ann. Mtg. Conn. Pomological Soc.. 2004
- Are herbicides contributing to basal cankers and tree death in apple orchards?. Proc. Ann. Mtg. Conn. Pomological Soc.. 2004
- Causes of phytotoxicity in fruit trees. Proc. 2004 Empire State Fruit & Vegetable Expo. 8-11. 2004
- Critical management decisions for controlling fire blight in the northeast. Proc. New Engl. Fruit and Veg. Conf.. 2004
- Decay development and control in Honeycrisp apples. Proc. MSU CA Clinic. 40-42. 2004
- Factors affecting fungal spore dispersion in the apple handling chain. Proc. MSU CA Clinic. 46-52. 2004
- Fruit decay problems in Honeycrisp and basal cankers on apple trees. Proc. New Engl. Fruit and Veg. Conf.. 2004
- New fungicides for postharvest disease control on apples. Proc. 80th Cumberland-Shenandoah Fruit Workers Conference. 192-193. 2004
- Timing summer fungicides for apples in the northeast. Proc. 80th Cumberland-Shenandoah Fruit Workers Conference. 194-197. 2004
- What is causing basal cankers on apple trees?. Proc. 80th Cumberland-Shenandoah Fruit Workers Conference. 30-31. 2004
- Calcium nutrition and control of Ca-related disorders. Proceedings of the In-depth Fruit School on Apple Mineral Nutrition. 2003
- Calcium nutrition and control of calcium-related disorders. Proceedings of In-depth Fruit School on Apple Mineral Nutrition. 2003
- Diphenylamine. Apple handling and Storage, Proceedings Storage Workshop 2003. 1-8. 2003
- Diphenylamine. Apple Handling and Storage: Proc. Storage Workshop 2003, Cornell University, July 30, 2003. 1-8. 2003
- Effect of 1-MCP treatment on development of blue mold decay in Empire apples. Apple Handling and Storage: Proc. Storage Workshop 2003, Cornell University, July 30, 2003. 73-80. 2003
- Postharvest fungicides — the New York perspective. Apple Handling and Storage: Proc. Storage Workshop 2003. Cornell University, July 30, 2003. 16-17. 2003
- Recent developments in apple disease control. Proc. Mass. Fruit Growers Association. 35-38. 2003
- Results of apple fungicide trials in the Hudson Valley — 2003. Proc. 79th Cumberland-Shenandoah Fruit Workers Conference, 20-21 Nov. 2003. 2003
- Stone fruit diseases and controls. Proc. New England Stone Fruit School. 16 Dec. 2003. Manchester, NY. 2003
- Controlling Penicillium expansum in apples with postharvest applications of fludioxonil. Proc. Ann. Mtg. Northeastern Div. Am. Phytopathology Society. 2002
- How inoculum cycling has contributed to re-emergence of Penicillium expansum as a significant postharvest problem in apples. Proc. Ann. Mtg. Northeastern Div. Am. Phytopathol. Society. 2002
- Integrating trifloxystrobin and kresoxim-methyl into apple disease control programs. Proc. Ann. Mtg. Northeastern Div. Am. Phytopathology Society. 2002
- Decay and quality problems at the retail level. Apple Handling and Storage: Proc. Storage Workshop 2001, Cornell University, Ithaca. 2001
- Leaf spotting: causes and solutions. Proc. New England Fruit Growers Mtg. 10-11 Jan. 2001. 2001
- Penicillium expansum invades empire apples through stems during long term controlled atmosphere storage. Phytopathology. 2001
- Postharvest decay control without fungicides. Apple Handling and Storage: Proc. Storage Workshop 2001, Cornell University, Ithaca. 2001
- Prevalence of conidia of Penicillium species on apple bins and in packinghouse air. Phytopathology. 2001
- Protectant and postinfection activity of SI and strobilurin fungicides against apple scab, powdery mildew, cedar apple rust and quince rust. Phytopathology. 2001
- Scab control strategies for 2001. Proc. New England Fruit Growers Mtg. 10-11 Jan. 2001. 2001
- Understanding the bitter pit problem in Honeycrisp. Apple Handling and Storage: Proceedings of Storage Workshop 2001. 2001
- Understanding the bitter pit problem in Honeycrisp. Apple handling and Storage, Proceedings Storage Workshop 2001. 1-8. 2001
- Understanding the bitter pit problem in Honeycrisp. Apple Handling and Storage: Proc. Storage Workshop 2001, Cornell University, Ithaca. 2001
- Controlling old fruit diseases with new fungicides. Proc. 145th Ann. Mtg. NY Hortic. Soc., 12-13 Jan. 2000. 17-19. 2000
- Advantages and limitations of new fruit fungicides. Proc. Ann. Mtg. Connecticut Pomological Soc. Ann. Mtg. 6-8. 1999
- Controlling fungi that cause apple decays during storage. New England Fruit Meetings 1999, Proc. Mass. Fruit Growers' Association. 103-114. 1999
- Disease management at bloom: scab, mildew, and rust diseases. Apple IPM: Building an IPM Program to Suit Your Needs. Proceedings of the 1999 Cornell In-Depth Fruit School, March 9-10, 1999. 1999
- Disease management at petal fall: scab, mildew, black rot, rust, calyx-end rot, and effects of fungicides on fruit finish. Apple IPM: Building an IPM Program to Suit Your Needs. Proceedings of the 1999 Cornell In-Depth Fruit School, March 9-10, 1999. 1999
- Postharvest decays: research results and future directions. CA Storage: Meeting the Market Requirements, Proc. from the CA Storage Workshop, Ithaca, NY, 18 August 1999. 49-62. 1999
- Results of fungicide trials in the Hudson Valley. Proceedings of the 75th Annual Cumberland-Shenandoah Fruit Workers Conference, 18-19 Nov. 1999. 1999
- Summer disease management: scab, flyspeck and sooty blotch, summer rots. Apple IPM: Building an IPM Program to Suit Your Needs. Proceedings of the 1999 Cornell In-Depth Fruit School, March 9-10, 1999. 1999
- Weather parameters — How they affect activity of pests, fungicide residues, and potential phytotoxicity from prebloom copper sprays. Apple IPM: Building an IPM Program to Suit Your Needs. Proceedings of the 1999 Cornell In-Depth Fruit School, March 9-10, 1999. 1999
- Recent research and changing options for controlling postharvest decays of apples. Proc. Harvesting, Handling, and Storage Workshop, Cornell University, Ithaca, 14 August 1997. 1997
- Comparison of Nova and Elite for controlling apple diseases. Proceedings of the 72nd Annual Cumberland-Shenandoah Fruit Workers Conference, 21-22 Nov. 1996. 98-100. 1996
- Controlling flyspeck and sooty blotch with a fungicide timing model. Proceedings of the 72nd Annual Cumberland-Shenandoah Fruit Workers Conference, 21-22 Nov. 1996. 102-106. 1996
- Effective use of fungicides to control summer diseases. New England Fruit Meetings 1996, Proc. Mass. Fruit Growers' Association. 51-57. 1996
- How cold injury contributes to canker diseases of fruit trees. Horticultural News. 1994
- The northeast SARE apple project: Experiences with scab-resistant apple cultivars in eastern NY. NY State Hortic. Soc. Proceedings. 45-49. 1994
- Canker diseases of apple trees. NY St. Hortic. Soc. Proc. 64-70. 1993
- Effects of various fungicides and fungicide formulations on apple diseases and mite populations, 1993. Proceedings of the 69th Annual Cumberland-Shenandoah Fruit Workers Conference, 18-19 Nov. 1993. 1993
- Disease control strategies for next year: Early season diseases. Proceedings Conn. Pomological Soc. 101st Ann. Mtg. 1992
- Disease control strategies for next year: Summer diseases. Proceedings Conn. Pomological Soc. 101st Ann. Mtg 1991. 1992
- Tomato ringspot virus in stone fruits. NY St. Hortic. Soc. Proceedings. 116-123. 1992
- Controlling summer diseases on apples. NY St. Hortic. Soc. Proceedings. 127-132. 1991
- Fungicide Trials in the Hudson Valley. Proceedings of the 67th Annual Cumberland-Shenandoah Fruit Workers Conference, 21-22 Nov. 1991. 1991
- Apple disease control options for the 90's: Getting by with less. Proceedings of the 66th Annual Cumberland-Shenandoah Fruit Workers Conference, 15-16 Nov. 1990. 1990
- Copper injury on apples caused by spring and summer disease-control sprays. Proc. 52nd Ann. NY State Pest Mgmt. Conference. 1990
- A Five-State Cooperative LISA Project for Apples. Proc. 51st Ann. N. Y. State Pest Mgmt Conference. 1989
- Black rot infections on apple flower parts contribute to summer fruit decay. Proc. 51st Ann. N. Y. State Pest Mgmt Conference. 1989
- Effectiveness of copper sprays for early season scab control on apples. Proc. 51st Ann. N. Y. State Pest Mgmt Conference. 1989
- Growing apples with plastic mulches. Proc. 51st Ann. N. Y. State Pest Mgmt Conference. 1989
- Integrated management of postharvest diseases. Proc. New England Fruit Meetings: 95th Ann. Mtg. Mass. Fruit Grower's Association. 106-112. 1989
- Orchard diseases that make you sick: Collar rot, black rot, heart rot, and cankers. Sommaire des Conférences Journée Pomicole, Assoc. Arboric. Frutiers Du Quebec, Collège MacDonald. 1989
- Reduced Spray Programs for Controlling Sooty Blotch and Fly Speck on Apples. Proc. 51st Ann. N. Y. State Pest Mgmt. Conference. 1989
- Black rot of apples and pears: causes, contributing factors, and controls. Proc. 95th Ann. Mtg. Conn. Pomological Society. Dec. 4, 1985. 1986
- Common virus disease problems in tree fruits and how to avoid them. Proc. 95th Ann. Mtg. Conn. Pomological Soc. Dec. 4, 1985. 1986
- Decline of apple, prune, and peach trees caused by a nematode-transmitted virus. NY St. Hortic. Soc. Proceedings. 81-85. 1983
- Diagnosis and control of orchard nematode problems and replant disease. Proc. New England Fruit Meetings: 89th Ann. Mtg. Mass Fruit Grower's Association. 70-80. 1983
- New orchard fungicides and how they may change the way you spray. Proc. New England Fruit Meetings: 89th Ann. Mtg. Mass. Fruit Grower's Association. 60-69. 1983
- Control strategies for benomyl-resistant postharvest decays of apples. NY St. Hortic. Soc. Proceedings. 98-102. 1980
- Union necrosis of apple trees on MM.106 rootstocks in the Hudson Valley. NY St. Hortic. Soc. Proceedings. 61-67. 1979
-
document part
- How IPM contributed to the current fungicide resistance crisis in apple scab management. 2011
- Non-target effects of glyphosate on apples 2011
- Using lime-sulfur to control sooty blotch and flyspeck in organic apple production in southeastern New York State 2010
- Reducing fungicide use in agriculture: benefits, risks, and unexpected outcomes. 1560. 1995
- Economic impacts of failure to control summer diseases on ‘Liberty’ apples. 547. 1994
- Effectiveness of iprodione for controlling Penicillium expansum on apples. 1375. 1994
- Fungicides for controlling black knot on plums. 1375. 1994
- Occurrence, pathogenicity and competition among species of Penicillium on pear and apple fruit. 1175. 1991
- Incidence and MBC-sensitivity of Penicillium aurantiogriseum from apple packinghouses. 123. 1990
- Presymptom eradication of sooty blotch and fly speck on apples. 123. 1990
- Reduced summer spray programs for controlling sooty blotch and flyspeck on apples. 123. 1990
- Variance in estimates of ascospore maturity and discharge in Venturia inaequalis. 973. 1990
- Development of apple union necrosis and decline in apple trees inoculated with tomato ringspot virus. 1312. 1985
- Differential reduction of Xiphinema and Pratylenchus populations in a bearing apple orchard with carbofuran, carbosulfan, and phenamiphos. 1304. 1985
- Use of diphenylamine with benzimidazole fungicides improves control of benomyl-resistant Penicillium expansum in stored apples. 1346. 1983
- X-Disease transmission from wild chokecherry as related to X-disease vector populations. 112. 1977
- X-disease transmission by leafhoppers including the vectors Orientus ishidae and a Scaphoideus species complex. 112-113. 1977
- Terramycin chemotherapy of X-diseased peach and Montmorency cherry. 33. 1975
-
report
- 2012 Pest Management Guidelines for Commercial Tree-Fruit Production. 2012
- A new fungicide for controlling summer diseases on apples?. 9-13. 2012
- Apple disease control with Agion, Fontelis, Luna Sensation, Merivon, and Rally, 2011 2012
- Apple disease control with Merivon, Inspire Super, Omega, Indar, Topguard, and Rally, 2011 2012
- Controlling apple summer diseases with IKF-5411, Luna Sensation, Merivon, and Pristine, 2011 2012
- Controlling bitter rot in stored apples with Scholar, Penbotec, and difenoconazole, 2011-12 2012
- Controlling blue mold in stored apples with Scholar, Penbotec, and difenoconazole, 2011-12 2012
- Controlling early-season apple diseases with Penncozeb, sulfur, IKF-5411, and Rally, 2011 2012
- Controlling gray mold in stored apples with Scholar, Penbotec, and difenoconazole, 2011-12 2012
- Apple disease control with Esteem, Flint, Luna Sensations and four DMI fungicides 2011
- Comparison of Captan and Ziram used alone or with other products to control apple summer diseases, 2010 2011
- Controlling blue mold in stored apples with Scholar, Penbotec, and difenoconazole, 2010-11 2011
- Controlling blue mold in stored apples with fludioxonil, pyrimethanil, difenoconazole and captan, 2009-10 2011
- Controlling fruit decays caused by Botryosphaeria species in organic apple production, 2009 2011
- Controlling gray mold in stored apples with Scholar, Penbotec, and difenoconazole, 2010 2011
- Controlling gray mold in stored apples with fludioxonil, pyrimethanil, difenoconazole and captan, 2009-10 2011
- Controlling postharvest diseases and disorders of apples with non-recycling drenches 2011
- Controlling sooty blotch and flyspeck with fungicides approved for organic production, 2009 2011
- Controlling summer diseases on apples with Inspire Super, Rally, Indar Tebuzol, and Luna Sensation, 2009 2011
- Early-season apple disease control with Inspire Super and Rally, 2009 2011
- Effects of fungicides and removal of fruitlet mummies on incidence of apple summer diseases, 2010 2011
- Evaluation of Fontelis Luna Sensation, BAS 70301, and Torino for controlling early-season apple diseases, 2010 2011
- Using preharvest sprays and postharvest Scholar treatments to control postharvest decays, 2009-10. 2011
- Controlling Penicillium blue mold in stored apples with Scholar and difenoconazole, 2008-09 2010
- Effect of fungicides on fruit set and fruit size in Empire apples, 2009 2010
- Glyphosate exposure contributes to internal browning of apples during long-term storage. 15-18. 2010
- New fungicides for controlling early-season apple diseases, 2009 2010
- Slowing the spread of fire blight during summer. 13-17. 2010
- Controlling flyspeck, sooty blotch, and fruit decays with fungicides applied during summer, 2008 2009
- Effectiveness of ProPhyt used alone or with Captan, Topsin M, or Pristine to control summer diseases of apples, 2008 2009
- Effects of application methods on efficacy of phosphite fungicides applied to control apple scab, 2008 2009
- Effects of application methods, timing, and rates on efficacy of ProPhyt for controlling scab and rust, 2008 2009
- Effects of various fungicide programs on development of necrotic leaf blotch on Golden Delicious, 2008 2009
- Evaluation of LEM17 for control of early-season apple diseases, 2008 2009
- Evaluation of ProPhyt combinations for controlling apple diseases, 2008 2009
- Evaluation of new fungicides for apple diseases, 2008 2009
- Evaluation of residual activity of apple scab fungicides, 2008 2009
- Oil sprays suppress Fabraea leaf spot in pears, 2008 2009
- Controlling blue mold in stored apples with pyraclostrobin and boscalid used alone or in combinations, 2006-07 2008
- Controlling gray mold in stored apples with pyraclostrobin and boscalid used alone or in combinations, 2006-07 2008
- Disease susceptibility of 11 hard cider apple cultivars in southeastern New York, 2006 2008
- Effectiveness of Prophyt used alone or with other fungicides to control summer diseases of apples, 2007 2008
- Effectiveness of Prophyt, Inspire, and Inspire Super for controlling early-season apple diseases, 2007 2008
- Effectiveness of Prophyte, Inspire, and Inspire Super for controlling early-season apple diseases, 2007 2008
- Effectiveness of new SI and strobilurin fungicides and combinations, 2007 2008
- Effectiveness of postharvest apple fungicides used alone or with Captec, 2006-07 2008
- Effects of oil sprays on development of Fabraea leaf spot in pears 2008
- Effects of rate and mixing partners on efficacy of Scholar for controlling postharvest decays of apples, 2006-07 2008
- Fungicide options for controlling flyspeck and sooty blotch during summer, 2007 2008
- Grower trial with preharvest sprays as a control for postharvest decays during long-term storage, 2006-07 2008
- Interactions among fungicides and spray adjuvants in late summer sprays for flyspeck, 2007 2008
- Phosphite fungicides applied as trunk sprays fail to control apple scab, 2007 2008
- Results of 2008 fruit fungicide trials in the Hudson Valley 2008
- Summary of Research/Extension Activities at the Hudson Valley Laboratory, 2006-2007 2008
- Using preharvest sprays to control postharvest decays on Cameo apples, 2006-2007 2008
- Using preharvest sprays to control postharvest decays on Royal Court apples, 2006-2007 2008
- Effects of preharvest sprays on development of postharvest decays, 2005-2006 2007
- Control of blue mold and gray mold with several rates and formulations of Scholar, 2005-06 2007
- Control of early-season apple diseases with Eminent and LEM-17, 2006 2007
- Control of flyspeck with phosphorous acid, liquid lime-sulfur, and other fungicides, 2006 2007
- Effectiveness of V-10135 compared to other postharvest fungicides used on apples, 2005-06 2007
- Efficacy of BAS 500F, 510F, and 516F for controlling blue mold and gray mold of apple, 2005-06 2007
- Evaluation of Captan as a mixing partner for new postharvest fungicides used on apples, 2005-06 2007
- Evaluations of apple disease control with Sporan, Enable, Scala, and other fungicides, 2007 2007
- Post-infection control of apple scab with Vangard and Scala, 2006 2007
- Apple disease control with new fungicides and formulations, 2005 2006
- Post-infection control of apple scab with Syllit, Vangard, and Scala, 2005 2006
- Post-infection control of flyspeck with new fungicides, 2005 2006
- Residual activity of Captan, Topsin M, and EBDC fungicides against flyspeck, 2005 2006
- Control of apple blue mold with Scholar applied alone or combined with other products, 2004-05 2005
- Control of scab and rust diseases with EBDC fungicides, 2004 2005
- Control of summer diseases with Topsin M, Captan, strobilurins, and copper fungicides, 2004 2005
- Controlling summer diseases on trees left unsprayed for 50 days during June and July, 2004 2005
- Effects of 1-MCP and fungicides on decay control and firmness retention of Empire apples, 2004-05 2005
- Effects of Scholar formulation and concentration on control of blue mold in Empire apples, 2004-05 2005
- Efficacy of BAS 500F, 510F, and 516F for controlling blue mold and gray mold of apple, 2004-05 2005
- Evaluation of Scala, strobilurins, and older fungicides for early-season disease control, 2004 2005
- Fungicide stability in water and effects of water quality on blue mold control in apples, 2003-04 2005
- Fungicides for controlling sooty blotch, sooty molds, and Fabraea fruit and leaf spot on pears, 2004 2005
- Post-infection activity of fungicides against Penicillium expansum in Empire apples, 2004-05 2005
- Summer disease control with Captan, Flint, Pristine, Sovran, and Topsin M, 2004 2005
- Apple disease control with Syllit, Scala, Vangard and two formulations of Topsin M, 2003 2004
- Apple disease control with Tanos, Pristine, and older fungicides, 2003 2004
- Controlling apple blue mold with Scholar plus hypochlorite, 2002-2003 2004
- Effectiveness of Abound and Scholar for control of blue mold on apples, 2002-2003 2004
- Effectiveness of OxiDate, Microthiol Disperss, and Flint-Elite combinations for controlling apple diseases, 2003 2004
- Fungicides for controlling Fabraea fruit and leaf spot on pears, 2003 2004
- Postharvest control of gray mold on Golden Delicious with Scholar and Mertect, 2002-03 2004
- Postinfection activity of Mertect 340F and Scholar for controlling Penicillium expansum, 2002-2003 2004
- Apple disease control with DMI and strobilurin fungicides, 2002 2003
- Apple disease control with contact fungicides, 2002 2003
- Effectiveness of Scholar for controlling blue mold decay in stored apples, 2001-2002 2003
- Effects of water quality on efficacy of postharvest treatments with Scholar, 2001-02 2003
- Efficacy of Captan, Mertect 340F, and Scholar for preventing stem-end blue mold in apples, 2001-02 2003
- Evaluation of redistribution capabilities of Sovran and Flint on apples, 2002 2003
- Integrated Pest Management: Current and Future Strategies 2003
- Apple disease control with strobilurin, DMI, and contact fungicides, 2001 2002
- Comparison of Flint and Nova for controlling rust and mildew, 2001 2002
- Comparison of Flint and Nova for post-infection control of apple scab, 2001 2002
- Comparison of contact fungicides for early-season disease control, 2001 2002
- Effects of field fungicide programs on development of postharvest decays, 2000-01 2002
- Effects of inoculum density on efficacy of Scholar for controlling Penicillium expansum, 2000-01 2002
- Effects of preharvest and postharvest fungicide treatments on development of postharvest decays, 2000-01 2002
- Effects of water quality on efficacy of Scholar for controlling Penicillium expansum, 2000-01 2002
- Post-infection activity of Sovran, Flint, Benlate, and Topsin M for control of flyspeck and sooty blotch, 2001 2002
- Apple disease control with strobilurin and SI fungicides, 2000 2001
- Comparison of Dithane, Penncozeb, and Penncozeb plus Bond for early-season disease control, 2000 2001
- Comparison of Sovran, Flint, Nova, and Indar for controlling rust and mildew, 2000 2001
- Controlling apple diseases with contact fungicides and a biocontrol, 2000 2001
- Effectiveness of Scholar for controlling Penicillium expansum in wounded apple fruit, 1999-2000 2001
- Effectiveness of Sovran and Flint for controlling sooty blotch and flyspeck, 2000 2001
- Impacts of field sprays with Flint and Vangard on postharvest decays, 1999-2000 2001
- Protectant and postinfection activity of Sovran, Flint, Nova, and Indar against apple scab, 2000 2001
- Controlling diseases on Jerseymac and Ginger Gold apple trees with biocontrol and contact fungicides, 1999. 25-26. 2000
- Controlling flyspeck without captan, mancozeb, and benzimidazole fungicides, 1999. 27. 2000
- Evaluation of Scholar for controlling blue mold of apples during storage, 1998-99. 24. 2000
- Evaluation of strobilurins and other new fungicides for controlling apple diseases, 1999. 28-30. 2000
- Comparison of Decco I-182 (Candida oleophila) and other postharvest treatments in a commercial apple storage, 1997-98. 39-40. 1999
- Controlling diseases on Jerseymac and Ginger Gold apple trees with contact and DMI fungicides, 1998. 18-19. 1999
- Effect of solution pH and fungicide rate on efficacy of captan for controlling blue mold in stored apples, 1997-98. 22. 1999
- Effectiveness of Decco I-182 (Candida oleophila) used alone or in combination with thiabendazole, 1997-98. 41. 1999
- Effects of diphenylamine and calcium chloride on effectiveness of Decco I-182 (Candida oleophila) , 1997-98. 42. 1999
- Eradicant activity of Decco I-182 (Candida oleophila) on apples and effect of a post-treatment delay in cooling, 1997-98. 43. 1999
- Evaluation of Vangard and two strobilurin fungicides for controlling apple diseases, 1998. 20-21. 1999
- Using Benlate and Topsin M as eradicants for flyspeck following a mid-summer spray gap, 1998. 17. 1999
- Comparison of Elite, Nova, Vangard and older contact fungicides for controlling diseases on McIntosh and Golden Delicious, 1997. 25-26. 1998
- Effectiveness of BAS-125 for arresting development of fire blight after appearance of initial blight symptoms, 1997. 38. 1998
- Evaluation of new fungicides for apples, 1997. 23-24. 1998
- Refining and validating a fungicide timing model for controlling flyspeck on apples in the Hudson Valley. 28-36. 1998
- Susceptibility foliage and fruit of 23 apple cultivars in the NE-183 trial to apple scab. 35. 1998
- Susceptibility foliage of 23 apple cultivars in the NE-183 trial to cedar-apple rust, powdery mildew, and leaf spots. 36-37. 1998
- Using Benlate and Topsin M as eradicants for flyspeck following a mid-summer spray gap, 1997. 27-28. 1998
- Comparison of EBI fungicides for apple disease control, 1996. 28. 1997
- Controlling flyspeck with ziram, captan, Benlate, and sulfur used in various combinations, 1996. 26-27. 1997
- Effectiveness of Nova and Elite for controlling apple diseases, 1996. 22-23. 1997
- Evaluation of new contact fungicides and formulations for apple disease control, 1996. 25-26. 1997
- Foliage susceptibility of 23 apple cultivars in the NE-183 trial to scab, powdery mildew, cedar-apple rust, and leaf spots, 1996. 42-43. 1997
- Impact of prebloom fungicides and nutrient sprays on severity of russetting caused by delayed dormant copper sprays, 1996. 29. 1997
- Timing summer fungicide sprays for sooty blotch and flyspeck, 1996. 23-24. 1997
- Comparative susceptibility of 23 apple cultivars to powdery mildew and cedar apple rust, 1995. 36. 1996
- Comparison of fungicides for controlling diseases on McIntosh and Golden Delicious, 1995. 22-23. 1996
- Controlling apple diseases with new fungicides and formulations, 1995. 20-21. 1996
- Effects of fungicides and application timing on incidence of flyspeck on Liberty apples, 1995. 19. 1996
- Evaluation of TD 2350-1 for controlling Penicillium expansum in stored apples, 1994-95. 38. 1996
- Optimizing rates of ziram and sulfur used in combinations to control flyspeck on apples, 1995. 18. 1996
- Effect of Ridomil and Aliette on the establishment of apple trees, 1991-93. 30. 1995
- Evaluation of Fluazinam and other new fungicides, 1994. 26-27. 1995
- Evaluation of fungicides for controlling black knot on plums, 1992. 64. 1995
- Evaluation of several new fungicides and comparisons of various mancozeb formulations used in combinations with SI fungicides, 1994. 24-25. 1995
- Evaluation of ziram used alone and in combinations for controlling flyspeck, 1994. 29. 1995
- Evaluations of fungicides for controlling Penicillium expansum in stored apples, 1993-94. 46. 1995
- Using Benlate sprays in late summer to eradicate flyspeck, 1994. 28. 1995
- Comparison of Dithane and three formulations of ziram for controlling sooty blotch and flyspeck, 1993. 18. 1994
- Comparison of captan and ziram for controlling summer diseases, 1993. 19. 1994
- Comparisons of Rubigan and Nova used with captan and impacts of substituting ziram or ziram-sulfur for captan, 1993. 20. 1994
- Control of Penicillium blue mold with Rovral and Aliette, 1992-93. 36. 1994
- Control of Penicillium blue mold with Topsin M, Mertect, and various formulations of Rovral, 1992-93. 37. 1994
- Effects of fungicides and early-summer spray timing on fruit finish and control of sooty blotch and flyspeck, 1993. 18-19. 1994
- Effects of various fungicides and fungicide formulations on apple diseases and mite populations, 1993. 21-22. 1994
- Apple disease control with standard fungicides, 1992. 22-23. 1993
- Effectiveness of Rovral, Topsin M, and Mertect 340F for controlling blue mold in wounded apple fruit, 1991-92. 43-44. 1993
- Effectiveness of postharvest drenches for controlling blue mold in wounded apple fruit, 1991-92. 43. 1993
- Evaluation of fungicides for apple scab and summer diseases, 1992. 19-20. 1993
- Incidence of powdery mildew as affected by application rates for three SI fungicides, 1992. 21. 1993
- Integrated pest management for apples in the Hudson Valley: successes, constraints, current projects, and a historical review 1993
- Pre-symptom activity of apple scab fungicides, 1992. 18-19. 1993
- Apple disease control with Aliette, Nova, and Rubigan, 1991. 18. 1992
- Apple disease control with various fungicides and impact of fungicides on mite populations, 1991. 19. 1992
- Comparing alternative orchard mulches with herbicide weed control systems. 28-34. 1992
- Controlling sooty blotch and flyspeck on apples. 57-62. 1992
- Evaluation of fungicides for fabraea leaf spot on Bosc pears, 1991. 36. 1992
- Fungicides for control of apple scab and powdery mildew 1992
- The northeast sustainable apple production project: Disease control studies in NY. 53-55. 1992
- Apple disease control with Rubigan used in combinations with captan, thiram, ziram and ferbam, 1990. 27. 1991
- Comparison of Nova and Rubigan used at low rates for scab control, 1990. 32. 1991
- Developing strategies for controlling apple summer diseases without EBDC fungicides. 51-57. 1991
- Disease control and phytotoxicity from copper sprays applied during summer, 1990. 29. 1991
- Effect of spray timing on incidence of sooty blotch and fly speck on 'Liberty' apples, 1989 1991
- Evaluation of Dithane M-45, captan and thiram for controlling sooty blotch and fly speck, 1989. 32. 1991
- Evaluation of dithianon, captan, thiram, and ziram for apple disease control, 1990. 28. 1991
- Impact of prebloom copper and lime sulfur sprays on incidence of sooty blotch and fly speck, 1990. 29. 1991
- Phytotoxicity from prebloom copper sprays used to control fire blight, 1990. 30. 1991
- Summer disease control with contact fungicides used alone or with Benlate, 1990. 31. 1991
- Apple disease control options for the 90's 1990
- Apple disease control with MON-15321 as compared to Nustar and mancozeb standards, 1989. 21. 1990
- Apple disease control with SI fungicides, 1989. 19-20. 1990
- Prebloom scab control with Kocide and COCS, 1989. 19. 1990
- Apple disease control with dodine and SI fungicides, 1988. 31. 1989
- Comparison of Benlate and Bayleton for mildew control, 1988. 29. 1989
- Comparison of Dithane, Nustar, and Rubigan, 1988. 30. 1989
- Effect of application method on scab control with Nustar, 1988. 30. 1989
- Evaluation of a reduced spray program with SI fungicides, 1988. 28. 1989
- Evaluation of presymptom activity of SI fungicides, 1988. 27. 1989
- Antisporulant activity of new apple scab fungicides, 1987. 32. 1988
- Apple disease control with dodine and Rubigan, 1987. 31. 1988
- Apple scab control as affected by delaying prebloom fungicide applications 1988
- Control of apple scab and powdery mildew with new fungicides, 1987. 33. 1988
- Effects of tank mixing 2% oil with mancozeb on subsequent control of apple scab, 1987. 31. 1988
- Feasibility of eliminating summer fungicides in Hudson Valley apple orchards 1988
- Incidence of apple scab following delayed prebloom fungicide applications, 1986-87. 34. 1988
- Apple disease control with fungicides applied on a 10-day early-season schedule, 1986. 24-25. 1987
- Apple scab control with pre- and post-symptom eradicant sprays, 1986. 23-24. 1987
- Effect of spray oil on the efficacy of Funginex for control of apple scab, 1986. 23. 1987
- Evaluation of sterol-inhibitor fungicides for control of Penicillium expansum in stored apples, 1985-86. 2-3. 1987
- Control of apple diseases using fungicides on an extended schedule, 1985. 18-19. 1986
- Effects of fumigation, Temik, and Ridomil treatments on establishment of trees in replanted orchards, 1984-85. 3. 1986
- Evaluation of ergosterol-biosynthesis-inhibitor fungicides on a postinfection schedule, 1985. 19. 1986
- Evaluation of new postharvest fungicides for control of Penicillium blue mold in stored apples, 1983-85. 1. 1986
- Control of apple disease with ergosterol biosynthesis inhibitor fungicides, 1984. 18-19. 1985
- Evaluation of captan-EBI fungicide combinations for apple disease control, 1984. 17-18. 1985
- Pre-bloom scab control with Bravo 500 and Difolatan, 1984. 18. 1985
- Effect of Captan formulation and addition of diphenylamine on control of blue mold in stored apples, 1982-1983. 20-21. 1984
- Evaluation of Bravo 500 and Difolatan SAT's, 1983. 21. 1984
- Evaluation of sterol-inhibiting fungicides for apple disease control, 1983. 19-20. 1984
- Apple fungicide trial with protectant and postinfection spray schedules, 1982. 148-149. 1983
- Evaluation of Baycor and Vangard on reduced spray schedules, 1981. 13. 1982
- Evaluation of apple fungicides on protectant and modified spray schedules, 1981. 14. 1982
- Fungicide evaluation for control of Penicillium blue mold of apple during cold storage, 1980-81. 15. 1982
- Evaluation of apple fungicides on protectant and postinfection spray schedules, 1980. 15-16. 1981
- New fungicides for control of Penicillium blue mold of apples during controlled atmosphere storage, 1979-80. 14. 1981
- Apple disease control with protectant and postinfection sprays, 1979. 16-17. 1980
- Fungicide evaluations for control of brown rot and black knot on prunes, 1979. 42. 1980
- Evaluation of fungicides for apple disease control, 1978. 14-15. 1979
- Fungicide evaluation for control of black knot and brown rot of prunes, 1978. 44. 1979
- Cedar apple rust control on Golden Delicious with reduced rates of fungicides, 1977. 30. 1978
- Evaluation of fungicides for apple disease control, 1977. 31. 1978
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software
- Pest management guidelines for commercial tree-fruit production 2011. 2011
- Pest Management Guidelines for Commercial Tree-Fruit Production 2010 2010
- Potential non-target effects of glyphosate on apples 2010
- 2009 Pest Management Guidelines for Commercial Tree-Fruit Production 2009
- George David Blanpied - Memorial Statements 2009
- 2008 Pest Management Guidelines for Commercial Tree-Fruit Production 2008
- 2008 Pest management guidelines for commercial tree-fruit production 2008
- 2007 Pest Management Guidelines for Commercial Tree-Fruit Production 2007
- 2006 Pest Management Guidelines for Commercial Tree-Fruit Production 2006
- New York integrated fruit production protocol for apples 2006
- 2005 Pest Management Guidelines for Commercial Tree-Fruit Production 2005
- Development of an Integrated Fruit Production Protocol (IFP) for NY Apples 2005
- 2004 Pest Management Guidelines for Commercial Tree-Fruit Production 2004
- New York State Integrated Pest Management Elements for Apple 2004
- Powdery mildew of apple 2004
- 2003 Pest Management Guidelines for Commercial Tree-Fruit Production 2003
- An organic apple production system for NY 2003
- Pest management guidelines for commercial tree-fruit production 2003 2003
- Using apple scab pseudothecial squash mounts for timing early scab sprays 2003
- 2002 Pest Management Guidelines for Commercial Tree-Fruit Production 2002
- Pest management guidelines for commercial tree-fruit production 2002 2002
- 2001 Pest Management Guidelines for Commercial Tree-Fruit Production 2001
- Feasibility of sanitizing apple field bins to eliminate postharvest pathogens 2001
- Pest management guidelines for commercial tree-fruit production 2001 2001
- Using apple scab pseudothecial squash mounts for timing early scab sprays 2001
- 2000 Pest Management Guidelines for Commercial Tree-Fruit Production 2000
- Pest management guidelines for commercial tree-fruit production 2000 2000
- Summary of Research Projects and Activities for 1999 2000
- Apple IPM: A Guide for Sampling and Managing Major Apple Pests in New York State 1999
- Apple IPM: A guide for sampling and managing major apple pests in New York State 1999
- Hudson Valley apple growers reduce applications of fungicides 1999
- Hudson Valley fruit growers benefit from 75 years of university-industry cooperation 1999
- Pest management guidelines for commercial tree-fruit production 1999 1999
- Hudson Valley apple growers reduce applications of fungicides 1998
- Introducing … Hudson Valley Laboratory 1998
- Pest management guidelines for commercial tree-fruit production 1998 1998
- Summer disease control on apples 1994
- Apple scab management 1991
- Summer disease management 1991
- Apple disease research in the Hudson Valley 1990
- Biology and control of Cytospora fungi in peach plantings 1982
- X-disease of peach and cherry: A guide to chokecherry identification 1977
featured in archived article
Teaching
teaching overview
- Adult education through cooperative extension fruit schools, in-service training events, field tours, web pages, newsletter articles, and telephone and e-mail inquiries
teaching activities
- PLPA-8900: Master's Level Thesis Research - Spring 2013
- PLPA-9900: Doctoral-Level Thesis Research - Spring 2013
- PLPA-7990: Graduate-Level Thesis Research - Fall 2012
- PLPA-8900: Master's Level Thesis Research - Fall 2012
- PLPA-9900: Doctoral-Level Thesis Research - Fall 2012
- PLPA-8900: Master's Level Thesis Research - Spring 2012
- PLPA-9900: Doctoral-Level Thesis Research - Spring 2012
- PLPA-7990: Graduate-Level Thesis Research - Fall 2011
- PLPA-8900: Master's-Level Thesis Research - Fall 2011
- PLPA-9900: Doctoral-Level Thesis Research - Fall 2011
Service
outreach overview
- The objective of my extension programming is to provide useful information about diseases on tree fruits to clientele groups that include fruit farmers, extension professionals, private and corporate consultants working with tree fruit growers, and agrichemical company representatives working on development and sales of fungicides. I collect and compile information from a broad range of sources that include journal articles, oral communications from colleagues and consultants, information from the world-wide web, and results of my own applied research. Information from these sources is integrated into my extension publications and oral presentations at fruit grower meetings and at in-service education events where I present information relevant to understanding the preceding season and preparing for the next season. Extension articles and presentations during the past year focused on the following subject matter areas: 1. Approaches for controlling apple scab and other diseases in orchards where the most commonly used fungicide group (SI fungicides) are no longer effective due to development of fungicide resistance. 2. Selecting and timing fungicides for controlling flyspeck and summer fruit decays on apples. 3. Using sanitation and fungicides to control postharvest decays of apples during storage and to reduce risks of contaminating fruit with human pathogens.
service to the profession
- New York State Horticultural Society Member 1991 -
- American Association for the Advancement of Science Member 1983 -
- Northeast Division, American Phytopathological Society Member 1977 -
- American Phytopathological Society Member 1973 -
- Northeast Division, American Phytopathological Society Officer, Other Officer 2012 - 2015
- International Tree Fruit Association Member 2005 - 2014
- NE-1036 Multi-State Project on Postharvest Biology of Fruit Member 2003 - 2013
- Tree Fruit and Berry Program Work Team Chairperson 2007 - 2012
- Great Lakes Fruit Workers Program Organizer 2009
- Council for Agricultural Science and Technology Member 1995 - 2009
- NEC-1099 Multi-State Coordinating Committee on Evaluation of New Fruit Cultivars Committee Member 2005 - 2009
- New York State IPM Fruit Committee Committee Member 2000 - 2008
- Graduate Student Award Committee, Northeastern Division, American Phytopathological Society Chairperson 2008
reviewer or editor for
Background
education and training
- Ph.D. in Plant Pathology, Michigan State University 1977
- B.A. in Biology, Goshen College 1969
awards and honors
- 2013 IFTA Researcher Award, 2013
- Award of Merit, 2005
- 2002 USDA Group Honor Award for Excellence (as member of the NE-501 Regional Research Project), 2002
- 2001 USDA Group Honor Award for Excellence (as member of the NE-183 Regional Research Project), 2001
- NERA 2000 Award for Research Excellence, 2000
Other
alternate name
- Dave Rosenberger
college
- CALS
research keyword
- Diseases of tree fruits
- Penicillium expansum
- X-disease of stone fruits
- apple fruit decays
- apple rust diseases
- apple scab
- apple summer diseases
- apple tree cankers
- epidemiology of fungal pathogens
- fire blight
- fungicides for tree fruit
- organic apple production
- postharvest diseases of apples
- tomato ringspot virus on stone fruits
name prefix
- Dr.