Insecticides provide another mode of action to control CRW pressure, and they also control early-season pests like wireworm, cutworm and white grub, which aren’t controlled by traits alone.
In Iowa, insecticide applications increased yields in 100% of the trials, and created an economic advantage 75% of the time at $4/bu corn. On average, the insecticide application resulted in a 7.1 bu/A yield increase.
Results from Nebraska field trials were similar. In 86% of trials, using an insecticide over traits increased yields, with an average increase of 5.7 bu/A.