University of Illinois

No. 11/June 5, 1998

A Reminder about Insecticides and Herbicides

Many acres of replanted corn may have received an application (or second application) of an organophosphate soil insecticide. The April 8 issue of this Bulletin described some precautions to consider regarding the potential for certain herbicide/insecticide interactions. In general, consult the respective labels for information about applying ALS-inhibiting corn herbicides to corn previously treated with organophosphate soil insecticides. Additionally, the May 20 issue contained information about herbicide label restrictions with respect to foliar applications of organophosphate insecticides.

Aaron Hager ( and Marshal McGlamery (, Crop Sciences, (217)333-4424