Program Team/Workgroup Directory/Information
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Workgroup Information Walnut |
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Summary | Addresses high priority issues including improvement (breeding), integrated pest management (insect, disease, and alternatives to methyl bromide for fumigation for nematodes, etc.), irrigation and efficient orchard management within the walnut industry of California. |
Website: | http://fruitsandnuts.ucdavis.edu/crops/walnut.shtml |
Workgroup Chair Information | |
Name | Clarissa Reyes (Chair) |
Phone | 530-822-7515 |
clareyes@ucanr.edu | |
Unit: | Sutter-Yuba Counties |
Membership List |
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Tricoli, David | Dean's Office CA&ES (UCD) | |
Supervisor | Plant Transformation Facility | |
AES Scientist | ||
Adaskaveg, James | Plant Pathology | |
Professor and Plant Pathologist (test editing) | Mycology, plant pathology, ecology and epidimiology of fungi (test edits) | |
Bostock, Richard | Plant Pathology - CAES | |
Distinguished Professor, Plant Pathologist-AES | Physiology, biochemistry and molecular biology of host-pathogen interaction; diseases of fruit and nut crops | |
Brown, Patrick | Department of Plant Sciences | |
Pomologist-AES, Professor of Plant Nutrition | Plant mineral nutrition; root soil interaction; rhizosphere dynamics and genetic aspects of plant nutrition; function of boron in plants; sustainable agriculture | |
Dandekar, Abhaya | Department of Plant Sciences | |
Professor Geneticist-AES | Molecular, biochemical, genomic and epigenetic analysis of tree fruit and nut genetic and biochemical traits to improve management strategies | |
DeJong, Theodore | Department of Plant Sciences | |
Emeritus Professor CE Pomologist-AES Plant Physiologist-AES | Environmental physiology; tree crop physiology; carbon partitioning and crop modeling; pomology; physiology and management of fruit tree crops; peach rootstock development and physiology; dried plum breeding | |
Dvorak, Jan | Department of Plant Sciences | |
Professor V | Evolution of plant genomes and chromosomes; evolution of wheat and related species, construction of linkage maps based on molecular markers in wheat and related species in the tribe Triticeae; mechanisms of the action of the Ph1 gene of wheat on crossing over between homoeologous chromosomes; molecular mechanisms of salt stress tolerance in wheat and its improvement. | |
Wes, Hackett | ||
Labavitch, John | Department of Plant Sciences | |
Professor Pomologist-AES | Developmental and regulatory biology postharvest biology of fruits - emphasis on cell wall polysaccharide metabolism and biochemistry of plant-pathogen and plant-insect interactions | |
Lewis, Edwin | Nematology CAES | |
Associate Professor | Entomopathogenic nematodes for insect pest management, their use as antagonists of plant-parasitic nematodes, and the biology and ecology of the black vine weevil. | |
Lindow, Steven | Dean's Office CNR | |
Professor and Executive Associate Dean, CNR | Molecular and ecological studies of plant-associated bacteria | |
McGranahan, Gale | Department of Plant Sciences | |
Pomologist-AES Emerita | Breeding, selection, genetics, foreign gene transfer and tissue culture of walnuts for rootstock and variety improvement | |
Michailides, Themis | Kearney Agricultural Research & Extension Center | |
Plant Pathologist and Lecturer | Ecology, epidemiology and control of fungal diseases of fruit and nut crops and vines, postharvest diseases, aflatoxin and mycotoxins of nut crops and figs. | |
Millar, Jocelyn | Entomology (UCR) | |
Distinguished Professor, Entomology, Cooperating Faculty, Chemistry | Insect behavior; identification, synthesis, and testing of insect kairomones and pheromones; insect acoustic signaling | |
Mills, Nicholas | Environmental Science, Policy and Management (ESPM) | |
Professor Entomologist-AES | Biological control of insect pests, ecology and insect parasitoids, tree fruit pests | |
Neale, David | Department of Plant Sciences | |
Professor | ||
Parfitt, Dan | Department of Plant Sciences | |
Pomologist-AES | Genetics of fruit crops genetic diversity, germplasm use, pistachio breeding | |
Polito, Vito | Department of Plant Sciences | |
Professor Pomologist-AES Chairman Department of Pomology Davis | Reproductive biology of tree-crop species: olive, walnut, pistachio, almond and other Mediterranean tree crops | |
Shackel, Kenneth | Department of Plant Sciences | |
Professor/Pomologist-AES | Plant-based irrigation management, particularly in trees and vines. Use of the pressure chamber and stem water potential (SWP) as a measure of plant stress, and the use of stress to optimize productivity and save water. | |
Teuber, Larry | Department of Plant Sciences | |
Professor V | Genetics and biology of: floral characters influencing alfalfa pollination by honey bees, gene flow in honey bee cross pollinated crops, resistance to lygus bugs and whiteflies, Director University of California Foundation Seed Progarm | |
Welter, Stephen | ESPM - Organisms and the Environment | |
Entomologist Professor ESPM Organisms and the Environment, Assoc. Dean Academic Affairs. | IPM of fruit and nut crops, Plant-insect interactions, Biological Control | |
Wes, Hackett | ||
CE Advisor | ||
Anderson, Kathleen | Stanislaus County | |
Farm Advisor | Walnuts, Apricots, Apples, Cherries | |
Beede, Robert | Kings County | |
(Retired) Farm Advisor Emeritus | Horticulture: Tree fruit, nuts, grapes | |
Bentley, Walter | Kearney Agricultural Research & Extension Center | |
Integrated Pest Management Entomologist, Emeritus | Entomology | |
Bianchi, Mary | San Luis Obispo County | |
Emeritus - Horticulture Farm Advisor | Horticulture, pomology, subtropicals, water management and water quality. Horticulture in San Luis Obispo County and Northern Santa Barbara County. | |
Buchner, Richard | Tehama County | |
Orchard Advisor - Emeritus | Pomology for Tehama County. Strawberry nursery production in North Coast & Mountain Region | |
Caprile, Janet | Contra Costa County Cooperative Extension | |
Farm Advisor | Commercial fruit, nut, vine, vegetable, field, specialty crops | |
Connell, Joseph | ||
Farm Advisor Emeritus | Almonds, olives, citrus, subtropicals, ornamentals | |
Culumber, Mae | Fresno County | |
Nut Crops Farm Advisor | ||
Doll, David | Merced County | |
Pomology Farm Advisor | Almonds, Pistachios, Walnuts, and Urban Forestry | |
Edstrom, John | Colusa County | |
Farm Advisor emeritus | Almonds | |
Elkins, Rachel | Lake County | |
Pomology Farm Advisor in Lake and Mendocino Counties and Master Gardener Advisor in Lake County - Emeritus | ||
Fichtner, Elizabeth | Tulare County | |
Farm Advisor | Orchard Systems | |
Fulton, Allan | Glenn County | |
Irrigation and Water Resources Advisor emeritus | ||
Grant, Joseph | ||
Farm Advisor, Emeritus | walnuts, cherries, olives, miscellaneous fruits; fruit crops, integrated pest management | |
Hasey, Janine | Sutter-Yuba Counties | |
Tree Crop and Environmental Horticulture Advisor Emeritus, Master Gardener Advisor | Pomology, Horticulture, Master Gardener Program | |
Haviland, David | Kern County | |
Farm Advisor | Entomologist and Pest Management. Advise in identification and control of Pest. | |
Ingels, Chuck | Capitol Corridor MCP Cooperative Extension | |
Farm Advisor | Tree crops, grapes, environmental horticulture, and Master Gardeners/urban horticulture. Areas of research and extension focus include IPM, evaluation of sustainable products and practices, water conservation and deficit irrigation, home orchards and vineyards, sustainable landscaping, alternative turfgrass species, and tree training, pruning, and grafting. | |
Jarvis-Shean, Katherine | Capitol Corridor MCP Cooperative Extension | |
Orchard Systems Advisor | ||
Kron, Cindy | Sonoma County | |
North Coast Area IPM Advisor | Integrated Pest Management, Entomology, Viticulture | |
Krueger, William | Glenn County | |
Farm Advisor Emeritus | All tree crops in Glenn County and olives in Tehama County, integrated pest management | |
Lightle, Dani | Tehama County | |
Orchard Systems Advisor | ||
Milliron, Luke | Butte County | |
Orchard Systems Advisor | ||
Mohamed, Abdelmoneim | Stanislaus County | |
Irrigation and Soils Advisor | Irrigation systems, Groundwater sustainability, Precision irrigation in trees and vines | |
Mokwunye, Idongesit | Integrated Pest Management (IPM) Statewide Program | |
Area CE IPM Entomology Advisor | Pistachio, Almond, Walnut, Stone fruits and Table grapes | |
Ott, Natalia | Tehama County | |
Orchard Crops Advisor | Walnuts, Prunes, Almonds, Olives | |
Pickel, Carolyn | Integrated Pest Management (IPM) Statewide Program | |
Area IPM Advisor, Emeritus | IPM programs | |
Reyes, Clarissa | Sutter-Yuba Counties | |
Orchard Systems Advisor | Plant-water relations, drought physiology; walnut, peach, kiwifruit | |
Rijal, Jhalendra | Stanislaus County | |
Area IPM Advisor | Entomology, insect pest management, insect mating disruption, insect spatial distribution and quantitative sampling, insect behavior and chemical ecology | |
Schmierer, Jerry | Colusa County | |
Farm Advisor Emeritus | Plant science, alfalfa, wheat,dry beans, corn, barley, and oil seed crops with speciality in precision agriculture and weed management. | |
Sibbett, G. | ||
Farm Advisor Emeritus | Pomology, horticulture | |
Tollerup, Kris | Kearney Agricultural Research & Extension Center | |
Cooperative Extension Advisor, IPM | Almond, Pistachio, Tree Fruit, Grapes | |
Wheeler-Dykes, Becky | Glenn County | |
Orchard Systems & Weed Ecology Advisor | ||
Wunderlich, Lynn | Amador County | |
Farm Advisor | Viticulture and Pomology for the foothills; Sprayer calibration; Integrated Pest Management; Biological Control | |
Yaghmour, Mohammad | Kern County | |
Area Orchard Systems Advisor | ||
Zuber, Cameron | Merced County | |
Orchard Crops Farm Advisor | Merced County: Deciduous trees, not including pistachios and figs. Madera County: Walnut. | |
CE Specialist | ||
Al-Khatib, Kassim | Department of Plant Sciences | |
Professor, Plant Sciences | CE Specialist in Weed Sciences | |
Crisosto, Carlos | Kearney Agricultural Research & Extension Center | |
CE Postharvest Physiologist | Extension and research on postharvest biology and technology of fruits; fruit and nuts quality and deterioration and handling systems | |
Das, Srabani | UC Merced - Cooperative Extension Specialist | |
Assistant CE Specialist (Regenerative Agriculture) | soil health, soil carbon, perennial cropping, regenerative agriculture | |
Flint, Mary Louise | Entomology (UCD) | |
Extension Entomologist Emeritus, Entomology, UC Davis | Integrated Pest Management, biological control, landscape and garden IPM, information dissemination and entomology. | |
Goldhamer, David | Hydrology Program | |
CE Water Management Specialist | Water management of horticultural crops, regulated deficit irrigation, plant water relations, plant-based water status sensors | |
Golino, Deborah | Foundation Plant Services - CAES | |
CE Specialist, Director, Foundation Plant Services, Plant Pathology Department | Virus diseases of horticultural crops and nursery clean stock programs | |
Hanson, Bradley | Department of Plant Sciences | |
Cooperative Extension Specialist | Chemical and non-chemical weed control in agricultural crops with a focus on herbicide peformance, resistance, crop safety, and environmental fate. | |
Harris, Linda J | Food Science & Technology | |
Professor of Cooperative Extension | Microbial food safety throughout the food chain with a focus on the microbiology of fresh fruits and vegetables and tree nuts. | |
Johnson, Marshall | Entomology (UCR) | |
IPM Specialist and Research Entomologist, Emeritus | Integrated pest management of grapes, stone fruit, almonds and walnuts; biological control of arthropods; pesticide resistance in pests and natural enemies | |
Klonsky, Karen | Agricultural & Resource Economics | |
Specialist in Cooperative Extension, Emerita | Farm Management and Production, Sustainable Agriculture and Organic Agriculture | |
Lampinen, Bruce | Department of Plant Sciences | |
Integrated Orchard Management, Walnut and Almond Specialist | Integrated Orchard Management with an emphasis on walnuts and almonds | |
Larbi, Peter | Kearney Agricultural Research & Extension Center | |
Assistant Cooperative Extension Specialist | Agricultural Application Engineering/Spray Application Engineering | |
McKenry, Michael | Nematology Department | |
Emeritus Nematologist and CE Nematology Specialist, Emeritus | Field pathogenicity and practical control of nematodes in perennial crops | |
Mitcham, Elizabeth | Department of Plant Sciences | |
Director, Postharvest Center | Postharvest physiology and technology of fruit and nut crops; emphasis on maintaining flavor quality after harvest, enhancing consumption of produce, and reducing food loss. Also studying regulation of fruit ripening and mechanisms underlying calcium def | |
Pan, Zhongli | Biological & Agricultural Engineering | |
Adjunct Professor | Improving the value of agricultural products and their components through new and improved postharvest and processing technologies. | |
Prichard, Terry | Land, Air & Water Resources | |
CE Irrigation Water Management Specialist | Irrigation water management, crop response to limited water supplies, water infiltration, Delta water quality and soil salinity issues | |
Ramos, David | Department of Plant Sciences | |
Pomologist | Walnut production, tree training and pruning, high density management systems, cultivar and rootstock evaluations. | |
Sandoval Solis, Samuel | Land, Air & Water Resources | |
Associate Professor and Cooperative Extension Specialist in Water Resources | Water Resources Management, Environmental Flows, Agricultural Water management, Risk Analysis, Cost Benefit Analysis, Science Communication | |
Schwankl, Lawrence | Kearney Agricultural Research & Extension Center | |
CE Irrigation Specialist, Retired | Irrigation engineering, design, operation and management of irrigation systems, soil moisture monitoring, low-volume irrigation | |
Siebert, Jerome | Agricultural & Resource Economics & Policy | |
CE specialist emeritus | Marketing, management and policy resource and environmental economics. Special emphasis on farm program and macro-economic policy relationships to agriculture | |
Thompson, James | Biological & Agricultural Engineering | |
Emeritus Specialist in Cooperative Extension | Postharvest operations including drying and refrigeration of fruits, vegetables, cut flowers, tree nuts, and grains; transportation of agricultural commodities; energy management and alternative energy systems. | |
Trouillas, Florent | Plant Pathology - CAES | |
Associate Cooperative Extension Specialist | Fruit and Nut Crops, Plant Pathology | |
VanSteenwyk, Robert | Environmental Science, Policy and Management (ESPM) | |
CE Entomologist | Deciduous fruits, nuts and vines | |
Westerdahl, Becky | Nematology CAES | |
CE Specialistáá Professor | Applied nematology, integrated pest management | |
Westphal, Andreas | Kearney Agricultural Research & Extension Center | |
UC Riverside Professor of Cooperative Extension Nematology, Tokuji and Bettie L. Furuta Endowed Chair | Applied Nematology in perennial crops including walnut, almond, pistachio, grape and citrus | |
Wilson, Houston | Entomology (UCR) | |
Associate Cooperative Extension Specialist | Orchard/vineyard IPM, insect ecology, organic agriculture, agroecology | |
Zaccaria, Daniele | Land, Air & Water Resources | |
Associate Professor and Agricultural Water Management Specialist in Cooperative Extension | Agricultural water management and irrigation | |
Zalom, Frank | Entomology (UCD) | |
Distinguished Professor | Fruit and Vegetable Crop Entomology; Integrated Pest Management | |
Other ANR | ||
Brodt, Sonja | Sustainable Agriculture Research & Education Program (SAREP) | |
Academic Coordinator (Agriculture & Environment), UC SAREP | Agriculture and Environment | |
DeMoura, Richard | Agricultural & Resource Economics | |
Staff Research Associate | Cost Production Studies | |
Hendricks, Lonnie | Merced County | |
Farm Advisor, Emeritus | ||
Krochta, John | Food Science & Technology | |
Professor Food Engineer Peter J. Shields Endowed Chair of Dairy Food Science | Edible films and coatings to control mass transfer in foods; controlled release of bioactive compounds from biopolymers; conversion of agricultural surpluses to fuels and chemicals; biochemical separations | |
Metcalf, Samuel | ||
Micke, Warren | Department of Plant Sciences | |
Emeritus CE Pomologist | Cultural practices and production problems of almonds and walnuts. | |
Reil, Wilbur | ||
Farm Advisor (Emeritus) | ||
Olson, William | ||
County Director and Farm Advisor | Walnuts, Prunes , | |
Potter, Dan | Department of Plant Sciences | |
Professor and Plant Systematist | Phylogeny and systematics of horticultural crop plants and wild relatives, evolution of Rosaceae, molecular markers for walnut species and cultivars. | |
Van Horn, Mark | Agricultural Sustainability Institute | |
Director, Student Farm | ||
Zhang, Minghua | Land, Air & Water Resources | |
Non-UC | ||
Aradhya, Mallikarjuna | ||
Baumgartner, Kendra | Plant Pathology - CAES | |
USDA-ARS research plant pathologist | grapevine diseases | |
Browne, Greg | Plant Pathology - CAES | |
USDA Research Plant Pathologist | Soil-borne diseases of fruit and nut trees and other horticultural crops | |
Gut, Larry | ||
Kluepfel, Daniel | Plant Pathology - CAES | |
Light, Doug | ||
Preece, John | ||
Supervisory Research Leader | Horticulture | |
Rosecrance, Rich | ||
Seybold, Steven | ||
Research Entomologist | ||
User, Unverified | ||
Other UC | ||
Leslie, Chuck | ||
Membership Totals | ||
Number of Members | 107 | |
ANR Members | 97 | |
Non-ANR | 10 | |
Info Only | 0 |