Later plantings are also more likely to have tip damage from corn earworm and economic infestations of fall armyworm. Growers using Bt corn with later plantings still need to monitor for fall armyworm and treat if necessary. Bt corn has been shown to control other insect pests besides European corn borer in University of Kentucky studies. However, not all of the Bt corn events have been evaluated for control of all corn pests in Kentucky. Southwestern corn borer - levels of control and differences among the technologies similar to that listed for European corn borer in Table 1.
Bt corn is an effective control option for southwestern corn borer.
Little control has been observed with the event 176. Information on other Bt events is too limited to evaluate performance. At this time, information on other Bt events is too limited. The MON 810 and BT 11 events provide significant control of Indianmeal moth as shelled grain. Little control has been observed with the event 176.