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Plum curculio (Conotrachelus nenuphar) adult is a typical snout beetle, a 1/4 inch long, dark brown with patches of white or gray, and four prominent humps on wing covers. Injury will appear as a 1/8 of an inch crescent-shaped cut on fruit surface. Larvae are legless, grayish-white grubs with brown heads, and 1⁄3 inch when full grown.

Plum curculio feeding damage (Bessin, UKY)
Plum curculio feeding damage.

(Photo: Ricardo Bessin, University of Kentucky)

Plum curculio feeding damage (Bessin, UKY)
Plum curculio feeding damage.

(Photo: Ricardo Bessin, University of Kentucky)

Plum curculio larva (Bessin, UKY)
Plum curculio larva.

(Photo: Ricardo Bessin, University of Kentucky)

Plum curculio adult (Bessin, UKY)
Plum curculio adult.

(Photo: Ricardo Bessin, University of Kentucky)

       
Management:

  • Insecticides when damage is first observed or at first-cover

     

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