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Grape cane gallmaker

Ampeloglypter sesostris (LeConte)
Curculionidae: Coleoptera

The adult is a dark brown snout beetle about 1/8 inch (4 mm) long that looks like the grape cane girdler. The legless grub is white with a brown head and slightly larger when full grown.

Distribution

The grape cane gall-maker is a sporadic pest of grapes in the eastern United States.

Damage

This insect produces noticeable red galls on new shoot growth just above nodes. The majority of galls are beyond the fruit clusters and cause little yield loss. Canes with galls can still produce a crop the following year.

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The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.