What do you need?

Use the search below to search the site or find your local unit office.

Return to Skip Menu

Main Content

Raspberry Crown Borer



Authors as Published

Eric Day and Alexandra Spring, Department of Entomology, Virginia Tech


Larva: White, grub like, 1/4 to 1 1/4 inches long. Egg: Oval, deep reddish brown, about 1/16 inch long, laid under surface of leaf. Adult: Clear winged moth that resembles a common wasp; black body crossed by yellow bands.


Figure 1 Raspberry Crown Borer Left Raspberry Crown Borer adult. Right Larva and damage. Both photos: University of Georgia Plant Pathology Archive, University of Georgia, Bugwood.org

Common Host Plant(s)

Blackberry, dewberry, and raspberry.


In fall the young larvae burrow into the bark of plants, near the soil. Older larvae hollow out crowns
of plants.


Northern part of United States, but can occur in Virginia.

Cultural Control

Remove and destroy infested canes and crowns in early spring or fall.

Organic/Biological Control

No known organic/biological control known for raspberry crown borer at this time.

Chemical Control

Use a registered insecticide drench crowns and lower 2 feet of canes between October 1 and March 1.


Virginia Cooperative Extension materials are available for public use, reprint, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.


Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; M. Ray McKinnie, Interim Administrator, 1890 Extension Program, Virginia State University, Petersburg.


April 25, 2011

Available as:

Other resources in:

Other resources by:

Other resources from: