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Zitter, Thomas A
Cornell Faculty Member
Positions
- Professor, Plant Pathology and Plant-Microbe Biology (PPPMB), College of Agriculture and Life Sciences (CALS)
My research program focuses on the epidemiology and management of bacterial, fungal, and viral diseases of fresh market vegetable crops (esp. potatoes, cucurbits, and tomato) grown in upstate New York. I integrate my program by working cooperatively with scientists in other disciplines to evaluate chemical and biological agents, varietal resistance, and cultural disease management strategies for a number of vegetable crops. My work has relevancy for conventional and organic production of vegetable crops. For tomato we work cooperatively with a plant breeder to develop tomato varieties with multiple disease resistance by conventional breeding methods. For potatoes we study the use of sustainable and conventional products as seed piece, in-furrow or foliar application to minimize the lost of foliage and produce more blemish-free tubers. For cucurbits we evaluate products to minimize the effects of bacterial and fungal pathogens.
Research Areas
- agroforestry
- biological control
- disease control
- integrated pest management
- pathogens
- pest management
- pesticide management
- plant breeding and genetics
- plant pathology
- vegetables
Websites
- Affiliations
- Extension
- Research
- Publications
- Teaching
- Service
- Background
- Other
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Affiliations
Extension
has primary specialization area
Research
research overview
- Following the characterization of the Alternaria species affecting potato (A. solani) and tomato (A. tomatophila) in terms of morphology and greenhouse pathogenicity, and demonstrating that two species of Alternaria are responsible for early blight of tomato and potato, we applied this information in the pursuit of improving the selection of disease resistant tomato lines and hybrids. Using the more pathogenic isolate of A. t. has been particularly important for selecting lines with the greatest level of disease resistance under conditions in the Northeast. Genetic resistance to early blight and late blight has been fixed in tomato lines in cooperation with plant breeders, and these lines have been field tested to select for superior performance of earliness and yield potential in two locations in NY. NC06115, a jointly developed hybrid from Cornell and NCSU, performed exceptionally well in inoculated field plots in 2008. When teamed up with reduced-risk fungicides with lower environmental impact quotients (EIQ), it was possible to reduce seasonal EIQ values from 303 for the standard weekly spray with chlorothalonil to just 49 using a number of fungicides with low EIQs; this resulted in even better disease control than the standard chlorothalonil program. In 2009 we plan to repeat this study but with emphasis on reducing the number of sprays required with the same reduce-risk fungicides. A screen program was initiated to confirm resistance to Septoria leaf spot in some existing germplasm previously used for Septoria leaf spot (SLS) resistance. From this screening, two lines were selected for crossing with the LB/EB line mentioned above to generate F2 populations, and subsequent screening showed that SLS is probably controlled by a single gene, and that resistance is partially but not fully dominant under field conditions. In 2009 we plan to test lines that may be potentially fixed for triple genetic resistance with reduce-risk fungicides and a reduce spray program following the TOM-CAST program. In potato we are working with a horticulturist to reduce the damaging effects of silver scurf, black scurf, black dot by integrating seed and in-furrow treatments with foliar applications, and postharvest treatments. We are also investigating the use of in-furrow applications of a nematicide (oxamyl) and its affect on reducing early dying in potato. We had some excellent results in 2008 and growers are anxious to have use repeat this work in 2009. We will expand this work to see if we can continue to reduce the degree of potato early dying, determine if Verticillium is important in the state, and determine the role of black dot in this complex disease response. We continue to evaluate existing and new potato cultivars for their reaction to several diseases including pink rot. For cucurbits we studied the epidemiology of bacterial diseases of cucurbits and verified methods to reduce the spread of bacteria via seed by evaluating several seed treatments. We continue to follow the control of powdery mildew in cucurbits in the face of continued loss of fungicides due to fungal resistance. We participate in an interregional grant to monitor the occurrence and spread of downy mildew of cucurbits.
research activities
- Combining genetic resistance and reduced fungicides for tomato disease control
- Developing tomato varieties resistant to late blight and early blight
- Epidemic spread of Late Blight in 2009 – spreading the word
- Management of the northeastern late blight epidemic of 2009
- Vegetable IPM educational programs make impacts in eastern New York
co-principal investigator on
- BREEDING FOR GENETIC CONTROL OF LATE BLIGHT AND SEPTORIA LEAF SPOT IN FRESH MARKET TOMATO LINES FOR NYS awarded by AGRICULTURAL MARKETING SERV, USDA 2010 - 2013
- COMBINED RESISTANCE TO LATE BLIGHT, EARLY BLIGHT, AND SEPTORIA LEAF SPOT IN TOMATO, AND COMPLEMENTARY FUNGICIDES FOR NE AND OTHER TEMPERATE PRODUCTION REGIONS: SPECIAL RESEARCH GRANTS awarded by NATIONAL INSTITUTE OF FOOD AND AGRICULTURE-USDA 2009 - 2012
- REDUCING LOSSES IN POTATO PRODUCTION DUE TO PINK ROT awarded by NEW YORK FARM VIABILITY INSTITUTE 2009 - 2011
area(s) of concentration/expertise
- Biology and Control of Vegetable Diseases
- Disease Control and Epidemiology
- Diseases of Vegetables; IPM Recommendations; biology and epidemiology of vegetable pathogens;
- Extension and Production Research on Potatoes and Dry Beans
- Integrated Pest Management
- Plant Breeding
- Vegetable Breeding; Genetics of Disease Resistance
- Vegetable Crops - Extension/Research
- Vegetable IPM
- Vegetable Integrated Pest Management
keywords
- Genetic resistance
- Septoria leaf spot
- cucurbits
- early blight
- environmental impact quotient
- fungicide resistance
- late blight
- postharvest
- potato
- tomato
submitted impact statement
Publications
individual publications
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web resource
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academic article
- The 2009 late blight pandemic in Eastern USA. Phytopathology. 97:296-306. 2013
- Combination of genetic resistance, reduced-risk fungicides and Tom-Cast for tomato disease control. Phytopathology. 100. 2010
- Evaluating fungicides for controlling early and late blight in tomato. Plant Disease Management Reports. Report 4:V041. 2010
- Exploring the use of Vydate treatments and foliar fungicides to improve tuber yield and appearance in potato. Plant Disease Management Reports. Report 4:V039. 2010
- First report in North America of atypical symptoms caused by Colletotrichum coccodes on field-grown potato tubers during storage. Plant Health Progress. 2010
- Using host resistance and reduce risk fungicides to control early blight, Septoria leaf spot and late blight on tomato, 2009. Plant Disease Management Reports. Report 4:V038. 2010
- Benefits of early integration of interdisciplinary work for tomato improvement. (ABSTR). American Phytopathological Society, The. 99. 2009
- Combining resistance to Septoria leaf spot, late blight and early blight in tomato for joint control of defoliating diseases (ABSTR). American Phytopathological Society, The. 99. 2009
- Cucumber Mosaic Virus. American Phytopathological Society, The. 2009
- Evaluating fungicides for controlling early blight in tomato, 2008.. Plant Disease Management Reports. 3. 2009
- Exploring the use of Vydate treatments and foliar fungicides to improve tuber yield and appearance in potato, 2008. Plant Disease Management Reports. 3. 2009
- Fruit rots of pumpkins: a serious threat to the pumpkin industry.. American Phytopathological Society, The. 93:772-782. 2009
- Using host resistance and reduce risk fungicides to control early blight and Septoria leaf spot on tomato, 2008.. Plant Disease Management Reports. 3. 2009
- Comparing fungicides for powdery mildew control in butternut squash, 2007. Plant Disease Management Reports. 2. 2008
- Fungicides for controlling early and late blight in tomato, 2007.. Plant Disease Management Reports. 2. 2008
- Using host resistance and lite fungicides to control early blight and Septoria leaf spot on tomato, 2007. . Plant Disease Management Reports. 2. 2008
- Using host resistance and lite fungicides to control early blight on tomato, 2006.. Plant Disease Management Reports. 2. 2008
- Control of early blight of tomato with genetic resistance and conventional and biological sprays. Acta Horticulturae. 695:181-190. 2005
- First report of Plectosporium blight of pumpkin and squash caused by Plectosporium tabacinum in New York. Plant Disease. 89:432. 2005
- Tobacco mosaic virus in jalapeno pepper in New York. Plant Disease. 87:202. 2003
- Internal transcribed spacer regions 1 and 2 and random amplified polymorphic DNA analysis of Didymella bryoniae and related Phoma species isolated from cucurbits. Phytopathology. 92:997-1004. 2002
- Fusarium wilt of melon, a worldwide problem in temperate and tropical regions. Acta Horticulturae. 492:157-161. 1999
- Monogenic dominant resistance to gummy stem blight in two melon (Cucumis melo L.) accessions. Plant Dis.. 83:1105-1107. 1999
- Resistance to benomyl and thiophanate-methyl in Didymella bryoniae from South Carolina and New York. Plant Dis.. 82:479-484. 1998
- Race characterization of Fusarium oxysporum f. sp. melonis causing Fusarium wilt of melon in New York. Plant Dis.. 81:592-596. 1997
- Screening melon (Cucumis melo) for resistance to gummy stem blight caused by Didymella bryoniae in the greenhouse and field. HortScience. 32:117-121. 1997
- Influence of foliar application of nitrogen and potassium on Alternaria diseases in potato, tomato and cotton. Phytoparasitica. 24:281-292. 1996
- Morphological, pathological, and genetic differentiation of Didymella bryoniae and Phoma spp. isolated from cucurbits. Phytopathology. 85:364-369. 1995
- Comparative biological and serological properties of four strains of zucchini yellow mosaic virus. Plant Dis.. 76:530-535. 1992
- Effects of bicarbonates and film-forming polymers on cucurbit foliar diseases. Plant Dis.. 76:513-517. 1992
- Influence of temperature and fungicide on germination, growth, and virulence of Ulocladium cucurbitae on cucumber. Phytopathology. 82:358-362. 1992
- Artificial inoculation of maize white line mosaic virus to corn and wheat. Phytopathology. 81:397-400. 1991
- Differentiation of pseudorecombinants of two cucumber mosaic virus strains by biological properties and aphid transmission. Phytopathology. 81:139-143. 1991
- Helper virus-dependent replication, nucleotide sequence and genome organization of the satellite virus of maize white line mosaic virus. Virology. 180:467-473. 1991
- Maize white line mosaic virus double-stranded RNA, replicative structure and in vitro translation product analysis. Phytopathology. 81:1253-1257. 1991
- A field survey for serogroups and the satellite RNA of cucumber mosaic virus. Phytopathology. 80:1238-1243. 1990
- A leaf spot of cucumber caused by Ulocladium cucurbitae in New York. Plant Dis.. 74:824-827. 1990
- Determination of cucumber mosaic virus titer in muskmelon by enzyme-linked immunosorbent assay and correlation with aphid transmission. Plant Dis.. 74:857-859. 1990
- Comparison of three potato leafroll virus antisera and a single beet western yellows virus antiserum for luteovirus detection in potato. Am. Pot. J.. 64:97-108. 1987
- Potato virus Y transmission reduced in an aphid-resistant potato species. Phytopathology. 77:819-822. 1987
- Effect of citizen’s chemophobia on plant pathology. Plant Dis.. 68:655. 1984
- Outbreak of Alternaria alternata causing fruit rot of tomato in upstate New York. Plant Dis.. 68:628. 1984
- ‘FLBG-1' pepper breeding line. HortScience. 18:493-494. 1983
- Characteristics of maize stripe virus transmission by the corn delphacid. Journal of Economic Entomology. 75:397-400. 1982
- Effect of an aphid-transmitted, yellowing virus on yield and quality of staked tomatoes. Plant Dis.. 66:456-458. 1982
- Effect of interaction between two viruses and Rhizoctonia on pepper. Plant Dis.. 65:404-406. 1981
- Viruses infecting tomato in south Florida. Plant Dis.. 65:787-791. 1981
- Use of oils to control aphid-borne viruses. Plant Dis.. 64:542-546. 1980
- Evaluation of lettuce crosses, endive cultivars, and Cichorium introductions for resistance to bidens mottle virus. Plant Dis.. 61:767-770. 1977
- Florida 1974 - cos-type lettuce released for breeding purposes. HortScience. 12:168. 1977
- Transmission of three potyviruses by the leafminer Liriomyza sativae (Diptera: Agromyzidae). Plant Dis. Reptr.. 61:1025-1029. 1977
- Morphology, host range and serological relationships of pepper mottle virus. Phytopathology. 65:559-562. 1975
- Transmission of pepper mottle virus from susceptible and resistant pepper cultivars. Phytopathology. 65:110-114. 1975
- Incidence of lettuce mosaic and bidens mottle viruses in commercial fields and experimental lettuce plots in Florida. Plant Dis. Reptr.. 58:1087-1091. 1974
- Further pepper virus identification and distribution studies in Florida. Plant Dis. Reptr.. 57:991-994. 1973
- Inheritance of tolerance to a pepper virus in Florida. Phytopathology. 63:1211-1212. 1973
- Naturally occurring pepper virus strains in south Florida. Plant Dis. Reptr.. 56:586-590. 1972
- Natural infection of lettuce and endive by bidens mottle virus. Plant Dis. Reptr.. 55:1061-1063. 1971
- Nature of increased virulence in tobacco mosaic virus after passage in resistant tomato plants. Phytopathology. 59:1736-1739. 1969
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article
- Pest of the Month: Bean yellow mosaic virus.. American Vegetable Grower.. 60:34. 2012
- Common rust of sweet corn - Pest of the Month. American Vegetable Grower. 54:8. 2006
- Common rust of sweet corn - Pest of the Month. American Vegetable Grower. 54:8. 2006
- Treating potatoes. American Vegetable Grower. 53:12. 2005
- Lettuce mosaic virus. Pest of the Month. American Vegetable Grower. 52:7. 2004
- Bacterial wilt of cucurbits – Pest of the Month. American Vegetable Grower. 50:10. 2002
- Potato disease management in 2001 2001
- The long list of diseases affecting tomatoes and peppers in a wet growing season 2001
- Virus diseases of sweet corn 2001
- Barley yellow dwarf virus – What if it strikes again? 1999
- Management considerations for virus diseases of peppers 1999
- Managing powdery mildew with new fungicides 1998
- New tomato disease control options are available in 1998 1998
- Rotting pumpkin vines in New York 1998
- Fruit immaturity, wounding, and improper storage can enhance fruit rots 1995
- Scare up a cure for these pumpkin diseases. Aug. Amer. Veg. Grower. 41. 1993
- Powdery mildew plus gummy stem blight result in pumpkin losses 1992
- Diseases of importance for seedless and other varieties of watermelon 1991
- Foliage and fruit diseases plague cucurbit growers in 1990 1991
- Tomato fungicides for the 1991 growing season - processing vs. fresh market 1991
- Black dot disease of potato 1989
- Changes made on fungicide labels for vegetables 1989
- Tomato spotted wilt virus - the greenhouse flower crop and field vegetable crop connection 1989
- Cucurbit diseases in '86 have implications for '87 1987
- New severe virus attacks cucurbits 1986
- New virus threatens cucurbits. Amer. Veg. Grower. 34:13-14. 1986
- A checklist of potato disease control measures and fungicide recommendations for 1984 1984
- Control of potato leak and storage rots depends upon proper harvest and storage 1983
- Review of vegetable diseases in 1982 1983
- Update on potato late blight control 1983
- Vegetable disease recap for 1983 1983
- Beating beet diseases. Amer. Veg. Grower. 30:24. 1982
- Control of maize dwarf mosaic virus presents a challenge 1982
- Field crop diseases were major concern in 1981 1982
- The most common vegetable diseases in 1981 1982
- Early season diseases of winter wheat 1981
- Update on maize white line mosaic virus 1981
- Corn diseases respond to management 1980
- Florida virus disease control. Amer. Veg. Grower. 28. 1980
- Soybean seed susceptible to disease 1980
- Sunflowers: All that glitters may not be gold 1980
- Vegetable viruses linked to aphids - mosaic means infestation. Florida Grower and Rancher. . 1978
- Virus control with oil sprays. Amer. Veg. Grower. 26. 1978
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booksection
- Verticillium wilt in Solanaceous crops. Vol. 33. 2010
- Color spotting and fruit cracking 2003
- Disease Management 2003
- Flower and bud drop; Sunscald 2003
- Flower and flower bud drop and sun scald 2003
- Pepper mottle virus 2003
- Pepper veinal mottle virus 2003
- Celery mosaic 2002
- Southern mosaic 2002
- Carl W. Boothroyd 2001
- Virus diseases of pepper 2001
- Broad bean wilt virus 1997
- Cabbage section 1997
- Squash mosaic comovirus 1997
- Tobacco etch potyvirus 1997
- Assorted disease sections 1996
- Cabbage section 1994
- Cabbage section 1991
- Tomato diseases caused by viruses, viroids and mycoplasmalike organisms 1991
- Pepper mottle potyvirus 1990
- Cabbage section 1988
- Cabbage section 1985
- Pepper mottle virus 1982
- Management of Viruses by Alteration of Vector Efficiency and by Cultural Practices. Vol. 18. 1980
- Bidens mottle virus 1976
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chapter
- Alfalfa mosaic virus.. Compendium of Tomato Diseases.. 2013
- Beet curly top virus.. Compendium of Tomato Diseases.. 2013
- Cucumber mosaic virus.. Compendium of Tomato Diseases.. 2013
- Diseases caused by phytoplasmas.. Compendium of Tomato Diseases.. 2013
- Diseases caused by viroids.. Compendium of Tomato Diseases.. 2013
- Diseases caused by viruses.. Compendium of Tomato Diseases.. 2013
- Potato virus y.. Compendium of Tomato Diseases.. 2013
- Tobacco etch virus.. Compendium of Tomato Diseases.. 2013
- Tobacco mosaic virus and Tomato mosaic virus.. Compendium of Tomato Diseases.. 2013
- Tomato bushy stunt virus.. Compendium of Tomato Diseases.. 2013
- Tomato pith necrosis. In: Compendium of Tomato Diseases.. Compendium of Tomato Diseases.. 2013
- Tomato spotted wilt virus.. Compendium of Tomato Diseases.. 2013
- Potato recommendations for New York State. Cornell Recommendations for Commercial Vegetable Production. 52-63. 1984
- Potato recommendations for New York State. Cornell Recommendations for Commercial Vegetable Production. 46-55. 1983
- Flies. Vectors of Plant Pathogens. 1980
- Epidemiology of Aphid-borne Viruses. Aphids as Virus Vectors. 1977
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conference paper
- Pink rot and related disease problems and research into control measures. Proc. Empire State Fruit and Vegetable Expo. 69-71. 2009
- Potato disease control update. Proc. Empire State Fruit and Vegetable Expo. 67-68. 2009
- Update on potato disease control. Mid-Atlantic Fruit and Vegetable Convention. 98-100. 2009
- Using an environmental impact quotient (EIQ) for fungicide scheduling in tomato. Mid-Atlantic Fruit and Vegetable Convention. 104-106. 2009
- Pink rot, problems, prospects and Cornell. Empire State Fruit and Vegetable Expo. 15-17. 2008
- Update on fungicides for seed pieces, in-furrow and foliage for control of potato diseases. Mid-Atlantic Fruit and Vegetable Convention. 146-147. 2008
- 2006 Late Blight/Early Blight Program: Testing Fixed Lines and Hybrids. Empire State Fruit and Vegetable Expo. 115-116. 2007
- An Overview of Tomato Diseases and Their Control. Mid-Atlantic Fruit and Vegetable Convention. 146-147. 2007
- Evaluation of Lite Fungicides for Early Blight and Septoria Leaf Spot Control and the Pyramiding of Fungicide Usage with Genetic Resistance. Proc. 22nd Annual Tomato Disease Workshop. 2007
- Potato Fungicide Treatments - What’s Hot, What’s Not. Empire State Fruit and Vegetable Expo. 55-59. 2007
- An Overview of Tomato, Pepper and Eggplant Diseases. Empire State Fruit and Vegetable Expo. 131-132. 2006
- Bacterial leaf spot (Xanthomonas campestris pv. cucurbitae) as a factor in cucurbit production and evaluation of seed treatments for control in naturally-infested seeds. Proceedings of Cucurbitaceae 2006. 498-506. 2006
- Combined resistance to early blight and late blight in tomato. 1st International Congress of Tomato Production and Commercialization. 2006
- Efficacy of fungicides for early blight and late blight control. Proceedings 21st Annual Tomato Disease Workshop. 2006
- Initiating sudden wilt disorder in muskmelon with low light stress. Proceedings of Cucurbitaceae 2006. 60-64. 2006
- Late blight and early blight infection of tomato. 1st International Congress of Tomato Production and Commercialization. 2006
- Learning to Recognize and Manage Virus Diseases of Cucurbits. Empire State Fruit and Vegetable Expo. 126-129. 2006
- Update on Treatments Used for Seed Piece and Post Harvest Disease Control. Empire State Fruit and Vegetable Expo. 49-51. 2006
- Best Disease Control Strategies for Pumpkin in 2005. Mid-Atlantic Fruit and Vegetable Convention Proc. 50-52. 2005
- Control Strategies for Early Blight, Late Blight and Other Diseases. Empire State Fruit and Vegetable Expo. 42-45. 2005
- Disease Update Part I. Plectosporium and Bacterial Wilt. Empire State Fruit and Vegetable Expo. 128-130. 2005
- Shift in performance of fungicides for the control of tomato early blight. Proc. 20th Tomato Disease Workshop. 28-30. 2005
- Tomatoes for the Northeast combining early blight and late blight resistance. Proc. 20th Tomato Disease Workshop. 37-39. 2005
- Update on Fungicides Available for Control of Potato Diseases. Mid-Atlantic Fruit and Vegetable Convention Proc. 4-6. 2005
- Cucurbit Disease Update. Proc. New Jersey Annual Vegetable Meeting Berry Conference. 106-110. 2004
- Diseases Are What You Make Them. Empire State Fruit and Vegetable Expo. 41-42. 2004
- Experiences with Late Blight - Disease Occurrence and Control 2003. Empire State Fruit and Vegetable Expo. 106-109. 2004
- Experiences with Late Blight Disease Occurrence and Control 2003. Proc. New Jersey Annual Vegetable Meeting Berry Conference. 57-62. 2004
- How to Control Bacterial Diseases and White Mold of Tomato and Pepper. Empire State Fruit and Vegetable Expo. 104-105. 2004
- Pumpkins and Virus Resistance. Proc. Mid-Atlantic Fruit and Vegetable Convention. 1-3. 2004
- Update on Seed Piece, In-furrow, and Foliar Fungicides for Potato. Empire State Fruit and Vegetable Expo. 66-72. 2004
- Update on Seed Piece, In-furrow, and Foliar Fungicides for Potato. Proc. New Jersey Annual Vegetable Meeting Berry Conference. 151-157. 2004
- Update on fungicides Available for Control of Potato Diseases. Proc. Mid-Atlantic Fruit and Vegetable Convention. 23-26. 2004
- Feasibility of grafting melon on to resistant rootstock for the management of Fusarium wilt. Proc. NYS Vegetable Conference. 202-204. 2003
- Identification of potato early blight and early vine decline in potato. Proc. NYS Vegetable Conference. 4-7. 2003
- Insect and Pumpkins Don’t Mix – The Insect Link to Pumpkin Diseases. Proc. New England Vegetable and Berry Conference. 2003
- Insect involvement in bacterial diseases and other diseases and disorders of cucurbits. Proc. NYS Vegetable Conference. 184-185. 2003
- Pepper Disease Control – It Starts with the Seed. Proc. New England Vegetable and Berry Conference. 2003
- Spray Recommendations and Cultural Practices for Disease Control in Cucurbits. Proc. New England Vegetable and Berry Conference. 2003
- Results of plant assays for major aphid-transmitted viruses affecting beans in NYS in 2001. Proc. NYS Vegetable Conference. 164-167. 2002
- Use of field and post harvest treatments to control diseases and improve tuber appearance. Proc. NYS Vegetable Conference. 14-17. 2002
- Combination seed piece and foliar applications for disease control. Proc. of the NYS Vegetable Conference. 5-7. 2001
- The long list of diseases affecting tomatoes and peppers in a wet growing season. Proc. of the NYS Vegetable Conference. 214-216. 2001
- Virus problems of sweet corn. Proc. of the NYS Vegetable Conference. 111-114. 2001
- Bacterial wilt in pumpkins and other new disease developments. Proc. of the NYS Vegetable Conference. 79-82. 2000
- Melon diseases and disorders; how and when to best control them. 26th annual Ontario Horticultural Crops Conference. 2000
- What’s new in potato disease control?. Proc. of the NYS Vegetable Conference. 14-15. 2000
- New fungicide options for tomato disease control. Proc. of the NYS Vegetable Conference. 154-156. 1999
- Tomato and pepper viruses – descriptions and options for their control. Proc. of the NYS Vegetable Conference. 159-161. 1999
- What’s the “new” disease of pumpkin I’ve heard about?. Proc. of the NYS Vegetable Conference. 169-171. 1999
- Dedication: Rosario Provvidenti. Cucurbitaceae ’98. 1998
- Identification and management of pumpkin fruit diseases. Proc. of the NYS Vegetable Conference. 225-228. 1998
- Tomato late blight in New York in 1997 and results of research. Proc. of the NYS Vegetable Conference. 213-216. 1998
- Characterization of the pathogenic races of Fusarium oxysporum f. sp. melonis causing Fusarium wilt of melon in New York. 1st International ISHS Symposium on Cucurbits. 1997
- Cucurbit diseases of importance in the United States with emphasis on the Northeastern Region. 1st International ISHS Symposium on Cucurbits. 1997
- Leafy green and salad items and what ail them. Proc. of the New York State Vegetable Conference. 163-165. 1997
- Managing viral diseases of squash. Proc. of the New York State Vegetable Conference. 202-203. 1997
- Pathological and genetic differentiation of the gummy stem blight organism and its impact on pathology and breeding programs. 1st International ISHS Symposium on Cucurbits. 1997
- Pumpkin disease update. Proc. of the New York State Vegetable Conference. 1996
- What's ailing my tomatoes?. Proc. of the New York State Vegetable Conference. 1996
- Air-assisted electrostatic sprayers for disease control. Proc. of the New England Vegetable and Berry Conference. 1995
- Cucurbit disease management. Proc. of the New England Vegetable and Berry Conference. 1995
- Disease control in cole crops. Proc. of the Penna. Vegetable Conference. 1995
- Performance of electrostatic sprayers for disease control. National Conference on Pesticide Application Technology. 1995
- Sudden wilt of melons from a Northeastern U.S. perspective. Proc. Cucurbitaceae '94. Evaluation and Enhancement of Cucurbit Germplasm. 1995
- Varietal susceptibility to early and late blight. Proc. of the New York State Vegetable Conference. 98-101. 1995
- Vine crop disease update. Proc. of the New York State Vegetable Conference. 29-33. 1995
- Comparison of hydraulic and electrostatic sprayers for fungicidal control of early and late blight in tomato. Proc. of the New York State Vegetable Conference. 35-37. 1994
- Fusarium wilt of muskmelon - an old disease, a new problem in New York?. Proc. of the New York State Vegetable Conference. 85-88. 1994
- Improved control of cucurbit foliar and fruit diseases, or how less fungicide is better if properly applied. Proc. of the New York State Vegetable Conference. 81-84. 1994
- Bicarbonates and other strategies for powdery mildew control. Proc. of the New England Small Fruit and Vegetable Growers Conference. 1993
- Common cucurbit diseases. Proc. of the New England Small Fruit and Vegetable Growers Conference. 1993
- Progress in the battle against gummy stem blight and other foliar diseases. Proc. of the New York State Vegetable Conference. 5-8. 1993
- Virus diseases of pumpkins and their effect on fruit appearance. Proc. of the New York State Vegetable Conference. 17. 1993
- Comparison of hydraulic and electrostatic sprayers for disease control in winter squash. Proc. 54th Pest Management Conference. 1992
- Evaluation of powdery mildew resistant pumpkin and butternut squash exposed to three foliar cucurbit diseases in 1992. Proc. 54th Pest Management Conference. 1992
- Controlling diseases in the greenhouse. Proc. of the New York State Vegetable Conference. 108-111. 1991
- Scouting for cucurbit diseases and their impact in 1990. Proc. of the New York State Vegetable Conference. 126-129. 1991
- Identification and management of cucurbit diseases. Proc. 52nd New York State Pest Management Conference. 1990
- Pumpkin "handle" rot and other current vine crop disease problems. Proc. New York State Vegetable Conference. 95-96. 1990
- Tomato disease update and future fungicide availability. Proc. New York State Vegetable Conference. 107-109. 1990
- Foliar and soil-borne diseases of pepper and vine crops. Proc. New York State Vegetable Conference. 17-18. 1989
- Potato seed piece treatment research during 1989. Proc. 51st New York State Pest Management Conference. 1989
- Tomato early blight forecasting and factors influencing disease development. Proc. New York State Vegetable Conference. 50-51. 1989
- Transmission and epidemiology of maize white line mosaic virus. Proc. Fourth International Plant Virus Epidemiology Workshop. 1989
- Use of CDNA and the dot-blot techniques for the detection of maize white line mosaic virus in corn seedlings. Proc. 42nd Annual Northeastern Corn Improvement Conf.. 41-49. 1987
- Analysis of pseudorecombinants of two strains of cucumber mosaic virus differing in symptom expression and aphid transmissibility in squash. Proc. Third International Workshop on Epidemiology of Plant Viruses, Sec. X. 1986
- Maize white line mosaic in New York in 1984 and the isolation of zoosporic fungi from infected roots. Proc. 40th Annual Northeastern Corn Improvement Conf.. 47-49. 1985
- Problems in breeding for resistance to lettuce mosaic. Proc. Amer. Soc. Hort. Sci., Trop. Reg.. 113-118. 1984
- Detection of maize white line mosaic in corn. Proc. 38th Annual Northeast Corn Improvement Conf.. 114-117. 1983
- Recent disease developments in sweet corn. NYS Processing Vegetable Conference. 1983
- Beet leaf blight. NYS Processing Vegetable Conference. 1982
- Current status of maize white line mosaic. Proc. 37th Annual Northeast Corn Improvement Conf.. 67-72. 1982
- Diseases of sweet corn. NYS Processing Vegetable Conference. 1982
- White line mosaic virus update. Proc. 36th Annual Northeast Corn Improvement Conf.. 36-40. 1981
- The first four years of integrated pest management in Everglade’s celery: Part 2. Proc. Fla. State Hort. Soc.. 88-93. 1979
- Aphid-borne vegetable viruses controlled with oil sprays. Proc. Fla. State Hort. Soc.. 287-289. 1978
- The first four years of integrated pest management in Everglade’s celery: Part 1. Proc. Fla. State Hort. Soc.. 275-284. 1978
- Tobacco mosaic virus reactions in pepper - behavior of different isolates and interaction with different viruses and with Rhizoctonia. Fourth National Pepper Conference. 1978
- Use of oil sprays to delay the spread of nonpersistent aphid-borne viruses. Fourth National Pepper Conference. 1978
- Virus effects on yield. Third National Pepper Conference. 1976
- Transmission of pepper mottle virus from susceptible and resistant cultivars. Second National Pepper Conference. 1975
- A serological test for distinguishing bidens mottle and lettuce mosaic viruses. Proc. Fla. State Hort. Soc.. 143-145. 1973
- Methods of pepper virus identification. First National Pepper Conference. 1973
- Reaction of susceptible and tolerant pepper varieties to the pepper virus complex in south Florida. Proc. Fla. State Hort. Soc.. 146-152. 1973
- Virus diseases affecting lettuce and endive in Florida. Proc. Fla. State Hort. Soc.. 165-168. 1971
- Virus diseases of pepper in south Florida. Proc. Fla. State Hort. Soc.. 171-183. 1971
- Cucumber mosaic and western celery mosaic - two aphid-transmitted virus diseases of Florida celery. Proc. Fla. State Hort. Soc.. 188-191. 1970
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document part
- Phytophthora erythroseptica, isolate sensitivity to metalaxyl and disease control in potato in New York and Pennsylvania 2008
- Evaluation of chemical seed treatments to eliminate Xanthomonas campestris pv. cucurbitae from naturally infected pumpkin seeds 2003
- Two species of Alternaria cause early blight of potato (Solanum tuberosum) and tomato (Lycopersicon esculentum) 2003
- Investigation of the ITS region for pathovar-specific detection of (Pseudomonas syringae pv. lachrymans) a pathogen of cucurbits, by polymerase chain reaction (PCR) 2002
- Polymerase chain reaction for detection of Erwinia tracheiphila in cucurbits 1999
- Harpin for insect control 1998
- Fusarium crown and foot rot on cucurbit seedlings and pumpkin fruit 1997
- PCR identification and differentiation of Didymella bryoniae and Phoma species 1997
- PI 159234 - a source of resistance to, and a suitable diagnostic host for pepper veinal mottle virus 1997
- Cross-resistance to thiophanate-methyl in Didymella bryoniae resistant to benomyl 1996
- Effects of rind maturity and wounding on disease caused by Didymella bryoniae, Colletotrichum orbiculare, and Rhizoctonia solani on butternut squash and pumpkin 1996
- RAPD fingerprinting and phytogenetic analysis of Didymella bryoniae and Phoma spp 1996
- Field and greenhouse screens for gummy stem blight resistance in Cucumis melo and Cucurbita spp 1995
- First report of benomyl-insensitive Didymella bryoniae in the United States. 1126. 1995
- VCG and DNA fingerprinting data suggest that Fusarium oxysporum f. sp. melonis race 1 has recently been introduced into New York State. 1173. 1995
- Improved disease control in vegetables with electrostatic vs. hydraulic sprayers. 550. 1994
- Use of RAPD markers to distinguish Didymella bryoniae from related Phoma species isolated from cucurbits. 1123-24. 1994
- A new race of Fusarium oxysporum f. sp. melonis causing wilt of muskmelon in New York. 1344. 1993
- Comparison of Didymella bryoniae and related Phoma species from cucurbits. 1393. 1993
- Effects of bicarbonates and coating materials on cucurbit foliar diseases. 1191. 1991
- Arden Frederick Sherf, 1916-1989. 316. 1990
- Molecular cloning and sequencing of the satellite virus of maize white line mosaic virus. 1035. 1990
- Ulocladium leaf spot of cucumber in New York. 125. 1990
- Demonstration of the satellite nature of virus-like particles associated with maize white line mosaic virus. 1175. 1989
- Effect of Black Dot (BD) Disease on Potato Tuber Development and Potential Control with Seed Piece Treatments 1989
- Infection of sweet corn and wheat with maize white line mosaic virus by artificial inoculation. 1197. 1989
- Influence of fungicidal seed piece treatments and tuber-borne inoculum on the development of four potato pathogens 1989
- Biological and serological properties of four strains of zucchini yellow mosaic virus. 1568. 1988
- Influence of Fungicidal Seed piece Treatments and Tuber-Borne Inoculum on the Development of Four Potato Pathogens. 1578. 1988
- Chemical seed piece treatments for the control of rhizoctonia black scurf and other storage diseases of potato. 1712. 1987
- Cucumber mosaic virus (CMV) in peppers (Capsicum annuum L.) in New York, and associated yield losses. 652. 1986
- Serological detection of two potato viruses in samples from Florida winter test plots. 462. 1986
- Time course studies using ELISA to evaluate detection of cucumber mosaic virus inclusions in bell pepper. 652. 1986
- A difference in virus titer of two cucumber mosaic virus isolates as measured by ELISA and aphid transmission. 362. 1983
- Effects of cultivar resistance and inoculum pressure on the spread of potato leafroll virus (PLRV). 1343. 1983
- Occurrence and varietal susceptibility to maize white line mosaic virus in New York. 268. 1982
- Effect of an aphid-transmitted, yellowing virus on yield and quality of staked tomatoes. 1049-1050. 1979
- Oil sprays for the control of aphid-transmitted virus diseases of three vegetable crops. 227. 1978
- Host range and aphid transmission characteristics of two isolates of bidens mottle virus. 324. 1976
- Epidemiology of stylet-borne virus diseases in southern Florida 1973
- Pepper virus strains identification in south Florida. 800. 1972
- Titers of two virus diseases of celery affecting field spread. 1321. 1970
- Changes in virulence of tobacco mosaic virus after passage through a susceptible or a semi-resistant tomato. 837. 1967
- Expression of tomato double virus streak symptoms in a single clone in relation to temperature and virus titer. 892. 1966
-
manual
- Cucurbit IPM scouting procedures 1999
- Cucurbit IPM Scouting Procedures 1996
- Integrated pest management for diversified fresh market vegetable producers in New Jersey, New York and Pennsylvania: An IPM Initiative Project 1996
- Cucurbit IPM Scouting Procedures 1994
- A Grower's Guide to Cabbage Pest Management in New York. IPM Support Group 1986
-
report
- Combining Genetic Control of Septoria Leaf Spot Resistance, Late Blight and Early Blight Resistance in Tomato for Combined Resistance to Defoliating Blights. 57-61. 2012
- Overview of Tomato Blight Control Project. 55-56. 2012
- The 2009 Late Blight Pandemic in Eastern USA 2012
- Using host resistance and reduced-risk fungicides to control early blight and Septoria leaf spot on tomato, 2011. 2012
- Using host resistance and reduced-risk fungicides to control early blight and Septoria leaf spot on tomato, 2010. 2011
- Pyramiding tomato genetics with fungicide products and environmental scheduling for optimal disease control with low environmental impact. 78-81. 2010
- Combination of seed piece and foliar fungicides to improve tuber appearance and early blight control in potato, 2007 2008
- Biofungicides and sustainable products compared with conventional fungicides for potato production, 2006 2007
- Comparing fungicides for powdery mildew control in butternut squash, 2006 2007
- Fungicides for controlling early and late blight in tomato, 2006 2007
- Tospoviruses (Family Bunyaviridae, Genus Tospovirus). 212. 2005
- Pest Management Recommendations for Commercial Vegetable and Potato Production 1996
- 1995 Pest Management Recommendations for Commercial Vegetable and Potato Production 1995
- Field screening of melon varieties and lines for multiple race resistance to Fusarium oxysporum f. sp. melonis. 43. 1995
- Rind maturity and susceptibility of butternut squash to Didymella bryoniae. 62-63. 1995
- Seedling screens for resistance to gummy stem blight in squash. 59-61. 1995
- 1993 Pest Management Recommendations for Commercial Vegetable and Potato Production 1993
- 1992 Pest Management Recommendations for Commercial Vegetable and Potato Production 1992
- Impact of powdery mildew and gummy stem blight on collapse of pumpkin (Cucurbita pepo L.). 93-96. 1992
- Reaction of seedless and pollinator watermelons to bacterial rind necrosis, 1991. 27. 1992
- Reaction of Cucurbita pepo L. cv. Cinderella to strains of cucumber mosaic virus. 125-128. 1991
- CUFAST - Beta Test Version, Cornell University Forecaster of Alternaria Solani of Tomato 1990
- Effects of nitrogen rates, foliar urea, fungicide application and varietal susceptibility on early blight and tomato yield, 1989. 38. 1990
- Florical Late and Florical Early, two western type crisphead lettuce cultivars tolerant to lettuce mosaic virus 1990
- A simplified program for forecasting and controlling tomato early blight 1989
- Effects of nitrogen rates, foliar urea, fungicide application and varietal susceptibility on early blight and tomato yields, 1988. 30. 1989
- Phytophthora blight of pepper and certain vegetable crops and cultural and chemical control measures 1989
- Effects of nitrogen rates, fungicide application and varietal susceptibility on early blight and tomato yield, 1987. 29. 1988
- Common leaf rust and maize white line mosaic virus disease ratings in supersweet (SH2) corn variety trial at Freeville, NY, 1986 1987
- Potato seed piece fungicide field research during 1987 1987
- Scheduled fungicide application and varietal susceptibility for tomato early blight, 1986. 26. 1987
- A grower's guide to cabbage pest management in New York 1986
- Zoosporic fungi in roots of sweet corn infected with maize white line mosaic virus disease 1985
- A checklist of potato diseases and their control measures 1984
- A checklist of sweet corn diseases and suggested control measures 1984
- Floribibb, a gourmet lettuce resistant to two viruses for Florida organic soils 1984
- Take home tips for controlling important potato diseases 1984
- Virus diseases of marrow 1984
- A listing of vegetable varieties with disease resistance - 1983 1983
- Floricos 83 - a cos lettuce cultivar resistant to two viruses for Florida organic soils 1983
- Effect of an aphid-transmitted yellowing virus on yield and quality of staked `Walter' tomatoes 1979
- Methods for controlling the most common vegetable viruses in south Florida 1979
- Use of mineral oil sprays to reduce to spread of tomato yellows virus disease in Florida 1979
- Delray Bell, a virus resistant pepper for Florida 1977
- Pepper line trial for virus tolerance 1977
- Florida VR-2 a bell pepper with resistances to three virus diseases 1976
- Properties and aphid transmission characteristics of two isolates of bidens mottle virus 1976
- Viruses affecting Florida vegetables: lettuce and endive 1976
- Viruses affecting Florida vegetables: lettuce and endive 1976
- Lettuce virus resistance studies 1975
- Viruses infecting plants belonging to the family umbelliferae 1975
- Lettuce virus survey results from commercial fields and from experimental breeding plots 1974
- Evaluation of aluminum foil-oil-insecticidal spray combinations in controlling the spread of pepper viruses 1972
- Face to face with a virus vector. 3. 1971
- Virus diseases of leafy vegetables 1971
- Behavior of viruses in celery 1970
- Virus diseases of celery 1969
- Integrated Crop and Pest Management Guidelines for Commercial Vegetable Production. Cornell University Cooperative Extension 2012
- The 2009 Late Blight Pandemic in Eastern USA. 2012
- Integrated Crop and Pest Management Guidelines for Commercial Vegetable Production 2011
- Tomato, eggplant, pepper fungicide roster and ratings with specific emphasis on late blight (LB), as well as early blight (EB) and Septoria leaf spot (SLS) 2011
- 2010 Production Guide for Organic Potatoes 2010
- 2009 Production Guide for Organic Beans for Processing 2009
- 2009 Production Guide for Organic Carrots for Processing 2009
- 2009 Production Guide for Organic Cucumbers and Squash for Processing 2009
- 2009 Production Guide for Organic Peas for Processing 2009
- 2010 Production Guide for Organic Potatoes 2009
- Disease Control Sections 2009
- Disease Control Sections 2008
- Late Blight/Early Blight/Septoria Leaf Spot Program 2008
- Disease Control Sections 2007
- Screening potato cultivars suitable for production in Northeast America for response to Colletotrichum coccodes and Phytophthora erythroseptica 2007
- Biofungicides and organically-approved products compared with conventional fungicides for potato production, 2005 2006
- Comparing fungicides for early blight control in tomato, 2005 2006
- Comparing fungicides for powdery mildew control in butternut squash, 2005 2006
- Disease Control Sections 2006
- The efficacy of environmentally friendly compounds in controlling silver scurf in naturally infected potatoes during storage 2006
- Comparing fungicides for controlling the light phenotype Alternaria tomatophila in tomato, 2004 2005
- Comparing fungicides for powdery mildew control in butternut squash, 2004 2005
- Disease Control Sections 2005
- The effect of Amistar in-furrow seed piece treatment on tuber emergence, appearance, and yield in six potato cultivars, 2004 2005
- Use of Actigard (acibenzolar-z-methyl) to enhance suppression of Fusarium oxysporum in melon 2005
- Vegetable Diseases 2005
- Vegetable Diseases 2005
- Combination of seed piece and foliar fungicides to control early blight and black dot and improve tuber appearance in potato, 2003 2004
- Comparing fungicides for early blight and late blight control in tomato, 2003 2004
- Comparing fungicides for powdery mildew and gummy stem blight control in butternut squash, 2003 2004
- Disease Control Sections 2004
- The effect of Amistar in-furrow seed piece treatment on tuber emergence, appearance, and yield in six potato cultivars, 2003 2004
- Combination of seed piece and foliar fungicides to improve tuber appearance and early blight control in potato, 2002 2003
- Comparing fungicides for early blight control in tomato, 2002 2003
- Comparing fungicides for powdery mildew and gummy stem blight control in butternut squash, 2002 2003
- Disease Control Sections 2003
- Seed piece and foliar fungicides for early blight control, and to improve tuber appearance and yield in Andover, 2002 2003
- Combination of seed piece treatments and foliar fungicides to improve tuber appearance and early blight control in potato, 2001 2002
- Comparing fungicides for early blight and late blight control in tomato, 2001 2002
- Comparing fungicides for powdery mildew and gummy stem blight control in butternut squash, 2001 2002
- Disease Control Sections 2002
- Comparing fungicides for early blight and late blight control in tomato, 2000 2001
- Comparing fungicides for early blight control and improved tuber appearance in potato, experiment 2, 2000 2001
- Comparing fungicides for powdery mildew and angular leaf spot control in butternut squash, 2000 2001
- Comparing fungicides for powdery mildew and gummy stem blight control in butternut squash, 2000 2001
- Comparing seed treatments and foliar sprays for improved seed emergence, tuber appearance and early blight control in potato, experiment 1, 2000 2001
- Disease Control Sections 2001
- Comparing fungicides for early blight and late blight control in tomato, 1999 2000
- Comparing fungicides for powdery mildew and gummy stem blight control in butternut squash, 1999 2000
- Disease Control Sections 2000
- Comparing fungicides for early blight and late blight control in tomato, 1998 1999
- Comparing fungicides for powdery mildew and gummy stem blight control in butternut squash, 1998 1999
- Comparison of hydraulic and electrostatic sprayers for fungicide applications in winter squash, 1994 1999
- Disease Control Sections 1999
- Comparing fungicides for early and late blight control in tomato, 1997 1998
- Comparing fungicides for gummy stem blight and powdery mildew control in butternut squash, 1997 1998
- Disease Control Sections 1998
- Fusarium Diseases of Cucurbits 1998
- Comparing fungicides for early blight control in tomato, 1996 1997
- Disease Control Sections 1997
- Comparing fungicides with a CO2 boom and electrostatic sprayer for early blight control in tomato, 1995 1996
- Disease Control Sections 1996
- Disease Control Sections 1995
- Early blight control in susceptible and resistant tomato: Comparing the application of fungicides with hydraulic and electrostatic sprayers, 1994 1995
- Comparison of hydraulic and electrostatic sprayers for fungicidal control of early and late blight in tomato, 1993 1994
- Comparison of hydraulic and electrostatic sprayers for fungicide applications in winter squash, 1993 1994
- Cucumber beetles, corn rootworms, and bacterial wilt in cucurbits 1994
- Disease Control Sections 1994
- Disease Management 1994
- Comparison of hydraulic and electrostatic sprayers for fungicide applications in winter squash, 1992 1993
- Disease Control Sections 1993
- Assorted Foliar Diseases of Cucurbits 1992
- Disease Control Sections 1992
- Evaluation of fungicides for control of powdery mildew of pumpkin, 1991 1992
- Fruit Rots of Squash and Pumpkins 1992
- Gummy Stem Blight of Cucurbits 1992
- Septoria Leaf and Fruit Spot of Cucurbits 1992
- Disease Control Sections 1991
- Evaluation of chlorothalonil for control of Ulocladium leaf spot of cucumber, 1990 1991
- Evaluation of fungicides for control of powdery mildew of pumpkin, 1990 1991
- Potato seed piece fungicide field research, 1988 1991
- Disease Control Sections 1990
- Effect of fungicide seed piece treatments on naturally infected potato tubers, 1989 1990
- Potato seed piece fungicide research, 1989 1990
- Tomato IPM scouting procedures 1990
- A guide to monitoring potato pests in New York state 1989
- Black Dot Disease of Potato 1989
- Disease Control Sections 1989
- Influence of Initial and Subsequent Seed Piece Treatments for Disease Development on Potato Tubers, 1987 1989
- Influence of Initial and Subsequent Seed Piece Treatments for Disease Development on Potato Tubers, 1988 1989
- Phytophthora blight of pepper and certain other vegetables 1989
- Potato Seed Piece Fungicide Field Research, 1988 1989
- Tomato spotted wilt virus 1989
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1989
- Disease Control Sections 1988
- Effect of Fungicide Seed Piece Treatments on Stand, Early Disease Development, Yield and Quality of Potatoes, 1987 1988
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1988
- 1987 Cornell Recommendations for Commercial Potato Production 1987
- Common rust of sweet corn 1987
- Disease Control Sections 1987
- Diseases of cucurbits: Anthracnose of cucurbits 1987
- Diseases of sweet corn: Common rust of sweet corn 1987
- Diseases of tomato: Septoria leaf spot of tomato 1987
- Evaluation of seed piece fungicide treatments on stand, yield, and quality of potatoes, 1985 1987
- Evaluation of seed piece fungicide treatments on stand, yield, and quality of potatoes, 1986 1987
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1987
- 1986 Cornell Recommendations for Commercial Potato Production 1986
- Control of cabbage storage rot, 1985 1986
- Detection of potato tuber diseases and defects 1986
- Disease Control Sections 1986
- Diseases of cucurbits: Scab of cucurbits 1986
- Diseases of tomato: Botrytis gray mold of greenhouse and field tomatoes 1986
- Evaluation of Fungicide Seed piece Treatments on Stand, Yield, and Quality of Potatoes - 1984 1986
- Evaluation of fungicides for control of gray mold and black leaf spot of storage cabbage, 1984 1986
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1986
- 1985 Cornell Recommendations for Commercial Potato Production 1985
- Bacterial diseases of tomato 1985
- Bacterial spot of pepper 1985
- Disease Control Sections 1985
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1985
- Asparagus 1984
- Clubroot of crucifers 1984
- Disease Control Sections 1984
- Diseases of potato - Potato early blight 1984
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1984
- Virus and viroid diseases of potato 1984
- Virus diseases and disorders of tomato 1984
- Virus diseases of crucifers 1984
- Virus diseases of cucurbits 1984
- Virus diseases of leafy vegetables and celery 1984
- Virus diseases of pea 1984
- Virus diseases of pepper 1984
- Virus diseases of snap and dry beans 1984
- Virus diseases of sweet corn 1984
- Disease Control Sections 1983
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1983
- Disease Control Sections 1982
- Vegetable and Potato Disease Control Recommendations for New York State, Section VIII-A 1982
- Disease Control 1981
- Field Crop Seed Treatment for New York State 1981
- Disease Control 1980
- Field Crop Seed Treatment for New York State 1980
- Celery production on organic soils of south Florida 1973
Teaching
teaching activities
- PLPA-6610: Diagnostic Lab Experience - Spring 2013
- PLPA-7980: Graduate Teaching Experience - Spring 2013
- PLPA-7990: Graduate-Level Thesis Research - Spring 2013
- PLPA-8900: Master's Level Thesis Research - Spring 2013
- PLPA-9900: Doctoral-Level Thesis Research - Spring 2013
- PLPA-6610: Diagnostic Lab Experience - Fall 2012
- PLPA-8900: Master's Level Thesis Research - Fall 2012
- PLPA-9900: Doctoral-Level Thesis Research - Fall 2012
- PLPA-6610: Diagnostic Lab Experience - Spring 2012
- PLPA-7980: Graduate Teaching Experience - Spring 2012
- PLPA-7990: Graduate-Level Thesis Research - Spring 2012
- PLPA-8900: Master's Level Thesis Research - Spring 2012
- PLPA-9900: Doctoral-Level Thesis Research - Spring 2012
- PLPA-6610: Diagnostic Lab Experience - Fall 2011
- PLPA-7980: Graduate Teaching Experience - Fall 2011
- 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
- My extension program reaches out to other colleagues (Horticulture, Plant Breeding), growers, IPM specialists, professional scouts, Industry representatives and many other stakeholders through my internationally recognized vegetable disease web site. My program consists of developing disease management strategies for tomato, potato and cucurbits that are both economically and environmentally sound for fresh market vegetable production. We develop and encourage the use of disease resistant varieties when possible. We hope that some of integrated programs will result in practices adaptable for organic production. I serve as section editor for the Disease Section of the Pest Management Guidelines for Commercial Vegetable and Potato Production, provide Newsletter articles for CCE Field Staff including fungicide news updates, and provide Disease Diagnostic tools as part of the Vegetable MD web site. During 2008 the web site received over 2.3 million hits. I have made available countless number of disease images for use in agent/grower education via the web. I serve as editor of two important books, Compendium of Tomato Diseases and Compendium of Cucurbit Diseases that are wide used by crop specialists. I also extend the latest information on Plant Disease control at numerous meetings held around the state. I participate in IPM twilight meetings in 3-4 counties during the summer months to provide hands on experience to my clientele. I am a frequent speaker at vegetable conferences throughout the northeast.
service to the profession
- DEL for Plant Pathology Member 2004 -
- Gamma Sigma Delta Member 1989 -
- New York State Vegetable Growers Association Member 1987 -
- Epsilon Sigma Phi Member 1986 -
- International Society for Horticultural Science, Vegetable Virus Working Group Committee Member 1981 -
- International Society for Horticultural Science, Virus Epidemiology Committee Member 1981 -
- American Phytopathological Society, NE-APS Member 1979 -
- SIGMA XI Member 1968 -
- American Phytopathological Society Member 1965 -
- Ad Hoc committee dealing with implementing state legislation dealing with disposal of potentially diseased culled vegetables (Ag and Markets)
- American Phytopathological Society, NE-APS Nominating Committee
- Empire State Potato Advisory Committee
- NE-124 Regional Project on Sweet Corn Physiology and Diseases
- NEC-88, Regional project on Management of Foliar Diseases of Cucurbits
- Organizing Committee, 1st International Congress of Tomato Production and Commercialization Committee Member 2006
- Farm and Facilities Task Force (subcommittees Shared equipment and Shared personnel) Committee Member 2004 - 2005
- Standardization of Common Names, American Phytopathological Society Member 1999 - 2001
- Host Resistance, American Phytopathological Society Member 1998 - 2001
- 1st International ISHS Symposium on Cucurbits, Scientific Technical Committee Member 1997
- Pesticide Association of New York Member 1987 - 1995
- Chemical Control Committee, American Phytopathological Society Committee Member 1991 - 1994
- Organizing Committee for 5th Int. Workshop (representing US) Committee Member - 1991
- Extension Committee, American Phytopathological Society Chairperson 1987 - 1989
- Integrated Pest Management Committee, American Phytopathological Society Committee Member 1986 - 1989
- Extension Committee, American Phytopathological Society Committee Member 1985 - 1989
- American Phytopathological Society Chairperson 1987 - 1988
- Florida State Horticultural Society Member 1968 - 1988
- Technical Committee, S-70 Regional project on Virus Diseases of Maize and Sorghum Chairperson - 1988
- Organizing Committee of the 5th Interregional Corn Conference Committee Member - 1988
- Technical Committee, S-70 Regional project on Virus Diseases of Maize and Sorghum Vice Chair - 1987
- Technical Committee, S-70 Regional project on Virus Diseases of Maize and Sorghum Officer, Secretary - 1986
- Standardization of Common Names for Plant Diseases, American Phytopathological Society Member 1980 - 1985
- Virology Committee, American Phytopathological Society Committee Member 1973 - 1975
- AI-SPER-0203DF692AB0001080C Chairperson - 1975
- National Lettuce Workshop Co-chairman - 1975
- Southern Research Planning Committee Task Force on Vegetables Committee Member - 1975
reviewer or editor for
- CSREES Specialty Crop Res. Inst.
- Compendium of Tomato Diseases. 2nd edition. APS Press. (in press).
- External CSREES Departmental Review Panel, North Carolina State University, Raleigh
- External CSREES Departmental Review Panel, Purdue University, W. Lafayette, IN
- External CSREES Departmental Review Panel, University of Florida, Gainesville
- External CSREES Departmental Review Panel, University of Kentucky, Lexington
- Southern Region IPM Center
- T-Star Caribbean Grant Program through the University of Florida
Background
education and training
- Ph.D. in, Michigan State University 1968
- Michigan State University 1963
awards and honors
- Fellow, 2008
- Career Accomplishment Award, 2005
- Outstanding New Extension Publication Recognition for NRAES-123 Pumpkin Production Guide, 2004
- Outstanding Extension Publication Award (For NRAES-123 Pumpkin Production Guide), 2003
- Outstanding Book Award (For NRAES-123 Pumpkin Production Guide), 2003
- Excellence in Extension Award, 2002
- American University Award for Educational Excellence in Web Page Development, 2001
- Excellence in IPM Award, 2001
- College of Agriculture and Life Sciences Extension and Outreach Faculty Award, 2000
- Council Award (FL) for editorship of Compendium of Tomato Diseases, 1992
- Gamma Sigma Delta, 1989
- Epsilon Sigma Phi (National Honorary Extension Fraternity), 1986
- Outstanding Paper Award, 1979
- Sigma Xi, National Scientific Research Honorary, 1968
- Ernest A. Bessey Undergraduate Award, 1963
Other
college
- CALS
research keyword
- Genetic resistance
- Septoria leaf spot
- cucurbits
- early blight
- environmental impact quotient
- fungicide resistance
- late blight
- postharvest
- potato
- tomato
name prefix
- Dr.