Issue 14, August 17, 2015

Emerald Ash Borer

Due to uncertainty about last week's report of emerald ash borer being found in white fringetree at the Morton Arboretum, the Illinois Department of Agriculture needs additional information about its status as an Illinois host. If you find evidence of EAB in white fringetree in Illinois, please contact your local IDA field person or me, Phil Nixon, at or 217-333-6650.

The insecticides that we recommend for control of EAB in ash, imidacloprid, dinotefuran, azadirachtin, and emamectin benzoate, have labels that allow treatment of white fringetree for emerald ash borer.

Adult EAB flight should be finished for this year in Illinois. Adults were present as late as July 16 in the Effingham area. At the EAB Open House in Peoria on August 10, 2015, several apparent second instar larvae one-half to three-quarters inch long were found feeding in ash. (Phil Nixon)

Phil Nixon

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