Disease, Pest & Weed Management

Grapevine Diseases

Foliar & Fruit Diseases

• Botrytis Bunch Rot
  • Botrytis Bunch Rot – WSU #FS046e
  • ESPAÑOL – Prodredumbre por Botrytis (.pdf) – WSU #FS046E
• Powdery Mildew
  • Grapevine Powdery Mildew: Eastern Washington – WSU #EM058e
  • WESTERN WA – Grapevine Powdery Mildew: Western Washington – WSU #EM059e
  • ESPAÑOL – Oídio de la Uva – WSU #EM058ES
• Sour Rots
  • Summer Rots (Sour Rot) – UC-Davis

Root & Trunk Diseases

• Armillaria Root Rot
  • Armillaria Root Rot – UC-Davis
• Eutypa Dieback
  • Eutypa Dieback – UC-Davis
• Esca/Petri Disease/Young Vine Decline
  • Esca/Petri Disease – UC-Davis
• Phomopsis Cane & Leaf Spot
  • Grape Phomopsis Cane and Leaf Spot – PNW Disease Handbook
  • Phomopsis Cane and Leaf Spot – UC-Davis
• Pierce’s Disease of Grape
  • Pierce’s Disease – UC-Davis

Viruses

For additional information on grapevine viruses, please contact: Dr. Naidu Rayapati.

• Grapevine Leafroll
  • Grapevine Leafroll Disease [English] – WSU EB2027e
  • ESPAÑOL – La Enfermedad del Enrollamieno de la Hoja de Parra – WSU EB2027eS
• Trunk Viruses
• Videos
  • How Grapevine Virus Diseases Spread – Video
  • Grapevine Leafroll Disease Symptoms – Video
  • Start Clean, Stay Clean – Video

Insects, Mites & Nematodes

Root Pests

• Nematodes
  • Fumigation Alternatives – Center for Sustainable Agriculture at WSU
  • Mustard Green Manures – WSU #FS219e
• Phylloxera – Biology and Management (WSU Webpage)

Canopy/Foliage Pests

• Beetles and Weevils
  • Japanese Beetle – Washington (.pdf)
• Cane Borers
  • Shothole Borer – UC-Davis
• Cutworms: Grapes
  • General Biology of Cutworm – UC-Davis
• Leafhoppers – PNW Insect Handbook
• Mealybugs
  • Field Monitoring for Viruses and Mealybug in PNW Vineyards (.pdf) – OSU #EM8985
  • Mealybug: General Biology – UC-Davis
• Mites
  • Grape Rust Mites (.pdf) – WSU
• Scales – General Biology – UC-Davis
• Thrips – General Biology – UC-Davis

Fruit Pests

• Light Brown Apple Moth (.pdf) – WSU
• Stink Bugs
  • Brown Marmorated Stink Bug (.pdf) – WSU
  • Brown Marmorated Stink Bug and Samari Wasp Parasitism (PBS article and video)

Weeds

Weed Identification

• Weed Science Society of America – Weed Identification
• WSU Weed Identification Service
• UC-Davis Weed Research and Information Center

Weed Management

• Weed Biocontrol Factsheets – North American Invasive Species Management Association
• Manage Weeds on Your Farm: A Guide to Ecological Strategies (.pdf) – SARE
• ORGANIC – Soil Biodegradable Mulches
• ORGANIC – Weed Management in Organic Vineyards (UC-Davis). This website discusses weed management before and after planting, vine row and middle of vine row management.

Noxious Weed Control

• Washington State Noxious Weed Control Board

Vineyard Vertebrate Management

Managing vertebrates can be challenging due to legal restrictions on trapping and use of chemicals. The information provided below is to help the reader understand general biology and what typical control options are. However, if an information source was produced outside of WA, some of their recommendations may not be legal within the state. Contact your local Extension or WSDA wildlife expert to make sure management activities are legal before attempting them.

Birds

• Standards for Bird Control in Vineyards – Oregon Wine Board
• Nonlethal Bird Deterrent Strategies – OSU #EM9286

Sage Rats/Badgers/Voles

• Meadow Voles and Pocket Gophers  – PNW #627
• Living on the Land” Attracting Birds of Prey for Rodent Control – OSU EC#1641