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Peach Tree Borer

July 7, 1999

Peach tree borers are increasing in number in pheromone traps in northern Illinois. When the number of borers peaks, wait two weeks and spray purpleleaf plum, flowering cherry, mountainash, and other susceptible trees with chlorpyrifos (Dursban). Spraying at this time in southern Illinois should be effective. It is still a little early to treat in central and northern Illinois.

Author: Phil Nixon staff at The Morton Arboretum


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