Dr. Gerald J. Holmes |
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North Carolina State University College of Agriculture & Life Sciences Plant Pathology Associate ProfessorAppointed: 2003 North Carolina State University College of Agriculture & Life Sciences Plant Pathology Extension SpecialistAppointed: 2003 |  |
Mailing AddressNorth Carolina State University Dept. of Plant Pathology Campus Box 7616 1300 Gardner Hall Raleigh, North Carolina 27695-7616United States | Contact InformationPhone: (919) 515-9779 Fax: (919) 515-7716 gerald_holmes@ncsu.edu http://www.cals.ncsu.edu/plantpath/Personnel/Faculty/holmes.html |
Qualifications
Ph.D., University of California, Riverside, Plant Pathology, 1994.
B.S., California State Polytechnic University, Pomona, Agronomy, 1987.
Expertise and Research Interests
- Diseases of vegetable crops, especially cucurbits (cantaloupe, cucumber, pumpkin, squash and watermelon) and sweet potatoes
- Postharvest diseases
- Penicillium molds of citrus
- Integrated pest management
- Fungicide resistance
- Postharvest diseases
- Penicillium molds of citrus
- Integrated pest management
- Fungicide resistance
Other Expertise
Cucurbit downy mildew (Pseudoperonospora cubensis)
Cucurbit powdery mildew (Sphaerotheca fuliginea)
Phytophthora blight (Phytophthora capsici)
Rhizopus soft rot of sweetpotatoes (Rhizopus stolonifer)
Ozone injury in watermelon
Sweetpotato souring
Cucurbit powdery mildew (Sphaerotheca fuliginea)
Phytophthora blight (Phytophthora capsici)
Rhizopus soft rot of sweetpotatoes (Rhizopus stolonifer)
Ozone injury in watermelon
Sweetpotato souring
Future Research
Southern Region IPM program: Integrated management of cucurbit downy mildew. Since 2004, cucumber growers in the eastern U.S. have been severely affected by this disease. We are investigating aspects of fungicide resistance, host specialization and disease forecasting (http://www.ces.ncsu.edu/depts/pp/cucurbit/)
USDA-Risk Avoidance and Mitigation Program: Development of grower decision-making tools to reduce risk and enchance sustainability of southern sweetpotato pest management systems. My role in this 4-year, 4-state (NC, LA, MS, AL) project is to address the pathology issues related to sweetpotato production. This includes preharvest conditions and their effect on postharvest susceptibility to diseases such as Rhizopus soft rot and bacterial stem and root rot. We are also characterizing the postharvest handling of sweetpotatoes by conducting in-depth packinghouse surveys.
National Research Inititiative (NRI): Creation of a national training program in crop biosecurity for first detectors. This 3-year project involves cooperators from across the US with co-project directors Kathleen Wright (Kansas State Univ) and Howard Beck (Univ of Florida). Our objective is to develope learning modules that will quickly and effectively deliver training in crop biosecurity to crop consultants and county agents throughout the US.
USDA-Risk Avoidance and Mitigation Program: Development of grower decision-making tools to reduce risk and enchance sustainability of southern sweetpotato pest management systems. My role in this 4-year, 4-state (NC, LA, MS, AL) project is to address the pathology issues related to sweetpotato production. This includes preharvest conditions and their effect on postharvest susceptibility to diseases such as Rhizopus soft rot and bacterial stem and root rot. We are also characterizing the postharvest handling of sweetpotatoes by conducting in-depth packinghouse surveys.
National Research Inititiative (NRI): Creation of a national training program in crop biosecurity for first detectors. This 3-year project involves cooperators from across the US with co-project directors Kathleen Wright (Kansas State Univ) and Howard Beck (Univ of Florida). Our objective is to develope learning modules that will quickly and effectively deliver training in crop biosecurity to crop consultants and county agents throughout the US.
Industrial Relevance
As an extension plant pathologist, my goal is to develop and disseminate information that is timely and relevant to agriculture and allied industries. I address current problems in production agriculture and provide guidance on disease management to many different organizations and individuals within NC, the US and abroad.
Keywords
COS Keywords:
Citrus Fruits, Crop Science, Pest Management, Plant Diseases or Pathology, Vegetables.Additional Terms:
Cucurbit, Integrated Pest Management, Plant Disease Management, Sweet Potato, Vegetable.Languages
(Reading, Writing, Speaking)
Spanish: (Fluent, Fluent, Fluent)
Portuguese: (Functional, Functional, Functional)
Guarani: (Basic, Basic, Basic)
Memberships
American Phytopathological Society
Gamma Sigma Delta
International Society for Horticultural Science
Sigma Xi, The Scientific Research Society
Honors and Awards
2006, Best of show award, Technical Art category,
Society of Technical Communications, Carolina Chapter
2006, NC Cooperative Extension Service Foundation Search for Excellence Award; Specialists category,
NC Cooperative Extension Service,
North Carolina State University
2006, Induction into the Academy of Outstanding Faculty Engaged in Extension,
College of Agriculture and Life Sciences,
North Carolina State University
2006, Outstanding Extension Service Award,
College of Agriculture and Life Sciences,
North Carolina State University
2006, Alumni Outstanding Extension and Outreach award,
NC State Alumni Association,
North Carolina State University
2005, Leadership Award,
North Carolina Vegetable Growers Association
2004, Educator of the year award,
NC Vegetable Growers Association
2000, Oustanding Educational Program,
NC Assoc. Coop. Ext. Specialists,
North Carolina State University,
Extension
2000, Extension Publication,
American Soc. Hort. Sci. Southern Region,
Commercial Production of Pickling and Slicing Cucumbers in NC
1999, Extension Publication,
American Soc. Hort. Sci, Southern Region,
NC Commercial Vegetable Recommendations
1994, J. V. Leary Award,
Dept. Plant Pathology,
University of California, Riverside,
most outstanding student research presentation
1994, James & Adeline Wallace Annual Prize,
College of Natural & Agricultural Sciences,
University of California, Riverside,
most outstanding research related to citrus
Previous Positions
1997-2003, Assistant Professor & Extension Specialist,
North Carolina State University,
College of Agriculture & Life Sciences,
Plant Pathology
1994-1997, Farm Advisor,
University of California,
Plant Pathology,
Cooperative Extension Service - Imperial County
1988-1994, Graduate Research Assistant,
University of California, Riverside,
Natural and Agricultural Sciences,
Plant Pathology
1986-1988, Agronomist/Chemist,
CL Technology, Inc.
1985-1985, Agricultural Internship,
Salyer American
1984-1984, Agricultural Internship,
University of California
Funding Received
- USDA Risk Avoidance and Mitigation Program (RAMP): Development of grower decision-making tools to reduce risk and enhance sustainability of southern sweetpotato pest management systems, $2,000,000, Sep 2003 to 2007.
- USDA-APHIS: Development of a Lucid key for cucurbit diseases, $20,000, Oct 2003 to 2004.
- USDA - Crops At Risk (CAR): Integrated Management of Foliar diseases of Melon in the Eastern U.S., $242,333, Oct 2001 to 2004.
- USDA-CSREES, National Research Initiative (NRI): Creation of a national training program in crop biosecurity for first detectors, $450,000, May 2004 to 2007.
- Regional Integrated Pest Management Competitive Grants Program - Southern Region: Integrated management of cucurbit downy mildew, $140,000, 2006 to 2008.
- Regional Integrated Pest Management Competitive Grants Program - Southern Region: Management and Retrieval Systems for Extending IPM Information in Southeastern USA Vegetable Production, $49,164, 2006 to 2008.
- Pickle Packers International: Investigations on the management of the new downy mildew of cucumber through forecasting, resistance and fungicides, $96,000, 2005 to 2008.
Publications
- A. P. Keinath, G. J. Holmes, K. L. Everts, D. S. Egel, and D. B. Langston, Jr. (2006) Evaluation of combinations of chlorothalonil with azoxystrobin, harpin, and disease forecasting for control of downy mildew and gummy stem blight on melon, Crop Protection, In Press
- Abad, J.A., Moyer, J.W., Kennedy, G.G., Holmes, G.J. and Cubeta, M.A. (2005) Tomato spotted wilt virus on potato in Eastern North Carolina, American Journal of Potato Research, 82, 255-261
- Holmes, G.J., Main, C.E. and Keever, Z.T. (2004) Advances in Downy Mildew Research, Vol. 2, Boston, Kluwer Adademic Publishers, 69-80 pages, ISBN=1-4020-2657-9
- Holmes, G.J., Main, C.E. and Keever, Z.T. (2004) Cucurbit downy mildew: a unique pathosystem for disease forecasting, Advances in Downy Mildew Research, Boston, Kluwer Adademic Publishers, 69-80 pages, ISBN=1-4020-2657-9 (bookchapter)
- Holmes, G. J., and Schultheis, J. R., Sensitivity of watermelon cultigens to ambient ozone in North Carolina, Plant Disease, 87, 428-434, 2003
- Stanghellini, M. S., Schultheis, J. R. and Holmes, G. J., Adaptation and market potential of pumpkin cultivars in eastern North Carolina. H, HortTechnology, 13, 532-539, 2003
- Holmes, G. J. and Stange, R. R., Influence of wound type and storage duration on susceptibility of sweetpotatoes to Rhizopus soft rot, Plant Disease, 86, 345-348, 2002
- Holmes, G. J. and Clark, C. A., First report of Geotrichum candidum as a pathogen of sweetpotato storage roots from flooded fields in North Carolina and Louisiana, Plant Disease, 86, 695, 2002
- Stange, R. R., Midland, S. L., Holmes, G. J., Sims, J. J. and Mayer, R. T., Contituents from the periderm and outer cortex of Ipomoea batatas with antifungal activity against Rhizopus stolonifer, Postharvest Biology and Technology, 23(2), 85-92, 2001
- Holmes, G. J., Brown, E. A. and Ruhl, G., What's a picture worth? The use of modern communications in diagnosing plant diseases, Plant Disease, 84, 1256-1265, 2000
- Holmes, G. J., Pumpkin fruit rot in North Carolina caused by Phytophthora nicotianae, Plant Disease, 84, 923, 2000
- Holmes, G. J. and Eckert, J. W., Sensitivity of Penicillium digitatum and P. italicum to postharvest citrus fungicides in California, Phytopathology, 89, 716-721, 1999
- Azad, H. R., Holmes, G. H., and Cooksey, D. A., A new leaf blotch disease of sudangrass caused by Pantoea ananas and Pantoea stewartii, Plant Disease, 84, 973-979, 1999
- Mclain, J., Castle, S., Holmes, G. and Creamer, R., Physiochemical characterization and filed assessment of lettuce chlorosis virus, Plant Disease, 82, 1248-1252, 1998
- Holmes, G. J., Jackson, L. F. and Perring, T. M., Imperial Valley conditions limit Karnal bunt in wheat, California Agriculture, 51, 29-33, 1997
- Holmes, G. J. and Eckert, J. W., Relative fitness of imazalil-resistant and -sensitive biotypes of Penicillium digitatum, Plant Disease, 79, 1068-1073, 1995
- Holmes, G. J., Eckert, J. W. and Pitt, J. I., Revised description of Penicillium ulaiense and its role as a pathogen of citrus fruit, Phytopathology, 84, 719-727, 1994
- Holmes, G. J., Eckert, J. W. and Pitt, J. I., A new postharvest disease of citrus in California caused by Penicillium ulaiense, Plant Disease, 77, 537, 1993
Profile Details
Last Verified: 7/6/2006
COS Expertise ID #877002
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