Scouting Guide for Problems of Fruit
Scouting Guide for Problems of Fruit

Leafrollers on Grapes

Leafrollers on Grapes

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Leafrollers (Lepidoptera spp.) appear in spring in their larval stage; there are several species of leafrollers present simultaneously. Larvae roll leaves together using silk, and they feed on leaves while protected inside the rolled leaves. Generally, leafrollers are not found in sufficient numbers; thus, they do not cause economic damage.

Leaf rolled with silk by leafroller larvae.

Leaf rolled with silk by leafroller larvae.

(Photo: Ric Bessin, University of Kentucky)

 

Foliage damage by leafroller larvae.

Foliage damage by leafroller larvae.

(Photo: Ric Bessin, University of Kentucky)

 

Leafroller leaf damage close-up.

Leafroller leaf damage close-up.

(Photo: Ric Bessin, University of Kentucky)

 

Leafroller larva feeding inside rolled leaf (with black and brown waste material).

Leafroller larva feeding inside rolled leaf (with black and brown waste material).

(Photo: Ric Bessin, University of Kentucky)

   

Management:

  • Apply insecticides (especially early-season applications to control primary insects).
  • This pest rarely reaches economically damaging levels.
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Contact Information

201F Plant Science Building 1405 Veterans Drive Lexington, KY 40546-0312