This page will guide you through links that describe key vineyard insects, diseases and weeds. The first step is identifying the pests, and then using scouting methods that help you determine if and when control measures are needed. Finally, recommendations for control of vinyard pests are also provided.
For management recommendations, see the 2020 New England Small Fruit Pest Management Guide or purchase the 2020 New York and Pennsylvania Pest Management Guidelines for Grapes.
For more information, please see out Pest & Disease Management page.
To check pesticide labels, go to Crop Data Management Systams (CDMS).
Currently, the fact sheet links provided for grape diseases and insects are from Michigan State University's Integrated Vineyard Management site. If further diagnostic work is needed, samples may be sent to the UMass Diagnostic and Insect Identification Lab.
For fact sheets for individual diseases pests and weeds, go to:
Key Diseases: (alphabetically)
- Anthracnose
- Armillaria root rot
- Bitter rot
- Black rot
- Botrytis bunch rot
- Crown gall
- Downy mildew
- Eutypa dieback
- Fanleaf degeneration (Grapevine fanleaf virus)
- Flavescence dorée
- Grapevine decline or Esca
- Leaf roll
- Nematodes - Root-knot, dagger and lesion nematodes
- Phomopsis cane and leaf spot
- Powdery mildew
- Ripe rot
- Septoria leaf spot
- Sour bunch rot
- Tar spot
- Tomato/Tobacco ringspot virus
- Please view the Diseases section of the UMass New England Small Fruit Management Guide for Grapes.
- For UMass Extension Fact Sheets, please view the "Small Fruit" Fact Sheets here.
(Above: Botrytis Bunch Rot. Image credit: Ohio State Extension)
Key Insect Pests: (alphabetically)
- Ants
- Banded Grape Bug
- European red mite
- Grape Berry moth
- Grape Cane girdler
- Grape Flea beetle
- Fruit Flies
- Gallmakers
- Grape Mealybug
- Japanese beetle
- Multi-colored Asian ladybeetle
- Phylloxera
- Potato leafhopper
- Rose chafer
- Grape Rootworm
- Two-spotted spider mites
- Yellowjackets
- Please view the Insects section of the UMass New England Small Fruit Management Guide for Grapes.
(Above: Grape Berry Moth female lay eggs on developing grape berries. Larvae burrow into the berry, feeding internally. Image credit: grapesandwine.cals.cornell.edu)
Weeds: (by category)
Accurate weed identification is the first step in effective weed management. For some great pictures of weeds listed below, you can download the PDF of the New England Vegetable Management Guide Pest Identification Supplement at the New England Vegetable Management Guide website.
Perennials: (alphabetically)
- Canada thistle
- clovers
- curly dock
- dandelion
- goldenrod
- quackgrass
- red sorrel
- yellow nutsedge
Annual Grasses: (alphabetically)
- barnyardgrass
- fall panicum
- large crabgrass
- oats or rye
Annual Broadleaves: (alphabetically)
- bedstraw
- carpetweed
- common chickweed
- common lambsquarters
- common purslane
- galinsoga
- horseweed
- shepherd's purse
- yellow wood sorrel
(Above: Quackgrass, a perennial grass. Dense stands of grasses such as crabgrass and quackgrass are particularly hard to control postemergence. Image credit: turf.purdue.edu/quackgrass/)