Pesticide Toxicology Laboratory

One- and five-day feeding trials were conducted in which praying mantis were fed cabbage looper larvae intoxicated with Btk toxin. Cabbage looper larvae were intoxicated by feeding them a diet supplemented with 150 ug/ml of a commercial preparation of Btk. No mortality or abnormal behavior was noted among praying mantis fed intoxicated cabbage looper larvae for one or five days.