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Zimmerman Pine Moth

September 15, 1999

Treatments can still be applied for Zimmerman pine moth. In the late summer and early fall, newly hatched larvae feed on the bark and the base of buds before forming a hibernacula in bark or bud crevices to spend the winter. Chlorpyrifos (Dursban) or dimethoate (Cygon) should be effective in reducing insect attack next year. Applications can also be made in April when larvae leave the hibernacula and migrate across the bark before boring into the trunk or shoot.

Author: Phil Nixon


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