The cry1Ab gene codes for a delta-endotoxin, commonly
known as "Bt-toxin", which confers resistance to the plant to
lepidoptera larvae such as the European corn borer (Ostrinia
nubilalis), the southwestern corn borer (Diatraea
grandiosella), pink borer (Sesamia cretica), Spruce
Budworm, Tent caterpillar, Gypsy moth, Diamondback moth, Cabbage
looper, Tobacco budworm, and Cabbage worm.