The University of California has an extensive Integrated Pest Management (IPM) website with a comprehensive section for grapes, including a year-round IPM program and guidelines. The UC IPM guidelines are an excellent source of information on managing pests. It includes the UC's official guidelines for monitoring pests and using pesticides or non-pesticide alternatives for managing insect, mite, nematode, weed, and disease pests.
If you need further help or have questions, feel free to contact MacKenzie Patton (mfpatton@ucanr.edu), the UCCE Integrated Pest Management Advisor for Central Sierra.
Official UC IPM Grape Pest Management Guidlines
The following link is to the official UC IPM Grape Guidelines: Grape IPM Guidlines
Common Foothill Grape Insect & Mite Pests
- General mealybug information and links
- Gill's mealybug (Ferrisia gilli)
- Grape mealybug (Pseudococcus maritimus)
- Leafhoppers
- Mites
Common Foothill Grape Diseases
- Grape vine canker disease-Eutypa (dead-arm), Botryosphaeria, Esca (measles) and Phomopsis
- Oak root fungus (Armillaria)
- Powdery mildew (Erisiphe necator)
Official UC ANR Grape Pest Management, ANR Pub #3343

Order at UC ANR Online Catalog