MSU Extension Integrated Pest Management

Grape cane gallmaker

Insect

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.

• Crops Affected: grapes

  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.