University of California
Fruit and Nut Research & Information Center
Joseph A Grant
Farm Advisor
Cooperative Extension San Joaquin County2101 East Earhart Avenue, Suite 200
Stockton, CA 95206
(209) 953-6100
jagrant@ucanr.edu
Website
Specialty
walnuts, cherries, olives, miscellaneous fruits; fruit crops, integrated pest managementEducation
M.S. Plant Protection and Pest Management, University of California, Davis. 1994
M.S. Horticulture (Pomology), University of California, Davis. 1983
Areas of Expertise (click to see all ANR academics with this expertise)
- Fruit and Nut Crop
- Walnuts
- Apples
- Cherries
- Plants and Their Systems
- Plant Genetic Resources
- Plant Product Quality and Utility (Preharvest)
- Plant Management Systems
- Insects, Mites, and Other Arthropods Affecting Plants
- Pathogens and Nematodes Affecting Plants
- Integrated Pest Management Systems
- Natural Resources and Environment
- Weather and Climate
- Pollution Prevention and Mitigation
ANR Publications
- Cherry: UC IPM Pest Management Guidelines
- Cover Crops for Walnut Orchards
- Cover Crops for Walnut Orchards
- Guide to Efficient Nitrogen Fertilizer Use in Walnut...
- Integrated Pest Management for Stone Fruits
- Integrated Pest Management for Walnuts-Third Edition
- Kiwifruit Growing and Handling
- Spotted Wing Drosophila: Pest Notes for Home and Landscape
- The Water Budget Method
- Walnut Production Manual
- Walnut: UC IPM Pest Management Guidelines
California Agriculture Article Contributions
- Crown gall can spread between walnut trees in nurseries and reduce future yields
- Pheromone-based pest management can be cost-effective for walnut growers
- English walnut rootstocks help avoid blackline disease, but produce less than ‘Paradox’ hybrid
- BIOS approach tested for controlling walnut pests in San Joaquin Valley
- Packing-line modifications reduce pitting and bruising of sweet cherries
- Apple russetting influenced by more than copper sprays
- Adjusting sprinkler angle reduces spread of disease in pistachio
- Shorter sprinkler irrigations reduce Botryosphaeria blight of pistachio
- New moisture meter could curb overdrying of walnuts
- Thinning Granny Smith apples chemically
- Walnut dehydrators vary in performance
- Guthion-resistant walnut aphid parasite: Release, dispersal, and recovery in orchards
- Survey detects viruses in almond, prune, and sweet cherry orchards
ANR Workgroup Associations
- Biologically Integrated Farming Systems (BIFS) - Member
- Biometrics and Computer Software - Member
- Cling Peach - Member
- European Pear - Member
- Pest Management in ANR - Member
- Pomology Extension Coordinating Conference (PECC) - Member
- Postharvest Technology Research & Info Center (PTric) - Member
- Prune - Member
- Spray Application Technology - Member
- Walnut - Member



