kurstaki Berliner (Bt) toxin
proteins (Cry1Ac and Cry2Ab), non-Bt cotton (DPL 491) and starvation on survival and development of cabbage
looper, Trichoplusia ni (H¨ ubner), were determined in the laboratory. Larvae of the first four larval instars died
when they fed on the terminal leaves of Bt cotton plants at 50 days after planting (DAP).