Grape
Practical IPM information for commercial agricultural production, covering a broad range of California pests. Management suggestions apply to crops grown in California but may be useful in other areas also.
Pest Alert
The invasive glassy-winged sharpshooter (GWSS) has been found on grapevine shipments sold at select Costco locations in Northern California between April 21 and May 19, 2026. If you or someone you know has recently purchased a grape plant at Costco, please help to limit the spread of the insect and the disease it carries. See California Department of Food and Agriculture GWSS response for more information.
Pest Management Guidelines
University of California's official guidelines for pest monitoring techniques, pesticides, and nonpesticide practices for managing pests in commercial production agriculture. More about UC IPM pest information.
UC IPM Pest Management Guidelines: Grape is UC ANR publication
Year-Round IPM Program—Table Grapes
Year-Round IPM Program—Wine and Raisin Grapes
General Management in an IPM Program
Invertebrates—General Information
Invertebrates—Management
- Ants
- Black Vine Weevil
- Black Widow Spider
- Branch and Twig Borer
- Cutworms
- Drosophila Flies
- European Fruit Lecanium Scale
- False Chinch Bug
- Gill's Mealybug
- Grape Bud Beetle
- Grape Leaffolder
- Grape Phylloxera
- Leadcable Borer
- Leafhoppers
- Light Brown Apple Moth
- Mealybugs (Pseudococcus)
- Omnivorous Leafroller
- Orange Tortrix
- Pacific Coast Wireworm (Click Beetle)
- Sharpshooters
- Thrips
- Vine Mealybug
- Webspinning Spider Mites
- Western Grapeleaf Skeletonizer
Plant Diseases—General Information
Plant Diseases—Management
Nematodes—Management
Weeds—Management
Vertebrates—General Information
Vertebrates—Management
Publication Information
Supplemental Pages
Monitoring Instructions
Monitoring Forms
- Invertebrates—Delayed-Dormant/Budbreak Monitoring Form (PDF)
- Invertebrates—Caterpillar Monitoring Form (PDF)
- Invertebrates—Sampling for Omnivorous Leafroller and Orange Tortrix Using Pheromone Traps and Degree-Days (PDF)
- Invertebrates—Insect and Spider Mite Monitoring Form (PDF)
- Invertebrates—Sampling for Sharpshooters Using Sticky Traps (PDF)
- Weeds—Early Season Weed Survey (PDF)
- Weeds—Dormant Weed Survey (PDF)
Photo Identification
- Invertebrates—Pests Monitored During Delayed-Dormancy and Budbreak
- Invertebrates—Other Pests During Bloom
- Invertebrates—Identifying Caterpillars During Rapid Shoot Growth
- Invertebrates—Identifying Caterpillars and Their Damage During Bloom (Wine and Raisin)
- Invertebrates—Identifying Caterpillars and Their Damage During Véraison (Wine and Raisin)
- Invertebrates—Identifying Caterpillars and Their Damage During Bloom and Véraison (Table Grapes)
- Invertebrates—Natural Enemies of Caterpillars
- Invertebrates—Identifying Virus-Infected Western Grapeleaf Skeletonizer
- Invertebrates—Distinguishing Between Orange Tortrix and Garden Tortrix
- Invertebrates—Pheromone Traps, Omnivorous Leafroller, and Orange Tortrix
- Invertebrates—Identifying Leafhoppers
- Invertebrates—Leafhopper Natural Enemies
- Invertebrates—Identifying Mealybugs
- Invertebrates—Identifying Natural Enemies of Mealybugs
- Invertebrates—Identifying Sharpshooters
- Invertebrates—Identifying Spider Mites and Their Damage
- Invertebrates—Natural Enemies of Spider Mites
- Invertebrates and Plant Diseases—Damage to Fruit at Harvest
- Invertebrates, Plant Diseases, and Vertebrates—Other Pests During Delayed-Dormancy
- Plant Diseases—Other Pests During Rapid Shoot Growth
- Plant Diseases—Identifying Pierce's Disease
- Plant Diseases—Pests and Abiotic Disorders During Véraison
- Weeds—Winter Annual Seedlings
- Weeds—Perennial Weeds
- Weeds—Summer Annual Weed Seedlings
Resources
- Fungicides, Bactericides, Biocontrols, and Natural Product for Deciduous Tree Fruit and Nut, Citrus, Strawberry, and Vine Crops in California (PDF)
- Herbicide Resistance: Glyphosate
- Invasive and Exotic Pests
- Mitigating Pesticide Hazards
- UC Fruit and Nut Research and Information Center
- UC Weed Research and Information Center
- Year-Round IPM Programs video
