Grape cane girdler

Insect

Grape cane girdler

Ampeloglypter ater (LeConte)

Photos

Girdled shoots break easily.

Girdled shoots break easily. Tom Zabadal

The grape cane girdler is a black snout beetle. In late spring, the female makes holes encircling the cane and lays her eggs in the holes. She then encircles the cane with another series of punctures a few inches below the first girdle. The leg-less grub is white with a brown head and feeds in the cane pith between the girdles. After larvae complete their development, they pupate. Adults appear in late summer and hibernate over the winter.

  • Crops Affected: grapes

    Damage

    Injury from this insect has the greatest impact on vines during establishment.

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