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Rose Stem Girdlers - Agrilus cuprescens
   James W. Amrine Jr., Whitney Cranshaw, Colorado State University West Virginia University, www.ipmimages.org  HOSTS: Rose, raspberry, currant, gooseberry. DESCRIPTION:
The
adult beetles are about ½ inch long, all black with a coppery
thorax. LIFE
CYCLE: The
larvae overwinters under the bark of canes or in the pith. In spring it
pupates within the plant, and the adults lay the eggs near the base of
the plant. The larvae tunnel upwards in the plant and pupate inside a
chamber the following spring. There is one generation per year. CONTROLS:
Prune out
and destroy infested canes in late winter/early spring. |
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