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Grape

Other Pests You May See

On this page
  • Grape whitefly
  • Grasshoppers
  • European fruit lecanium scale

During bloom through veraison, look for evidence of thrips, whiteflies, and grasshoppers. Whitefly honeydew can encourage sooty mold growth. Grasshoppers have chewing mouthparts and can defoliate young shoots. Names link to more information on identification, management, or biology.

Click on photos to enlarge

Grape whitefly nymphs and pupae
Grape whitefly
Identification tip
: Grape whitefly nymphs and pupae: Look for small insects, 0.06 inch long, with fringe around the body.

Grasshopper
Grasshoppers
Identification tip
: Grasshoppers have robust bodies, relatively short antennae, and hind legs with greatly enlarged femurs. Mass migrations from uncultivated adjoining rangelands can severely damage vines.

During veraison, also look for European fruit lecanium on leaves and shoots.
European fruit lecanium
European fruit lecanium scale
Identification tip: Look on leaves and shoots for second-instar nymphs that are yellow and oval.


Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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