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Raspberry Crown Borer

ID

3104-1561

Authors as Published

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

Description

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.

Damage

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

Distribution

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.

Rights


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

Publisher

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; Jewel E. Hairston, Administrator, 1890 Extension Program, Virginia State, Petersburg.

Date

April 25, 2011


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