Monsanto Registers Bollgard II

Bollgard II contains two different insect-control genes, compared with the single insect-control gene in its predecessor Bollgard, and provides growers with benefits such as a broader spectrum of insect control and improved efficacy against damaging worm pests, according to a Monsanto release. Bollgard II cotton produces both the Cry2Ab2 and Cry1Ac proteins, which each control cotton bollworms and tobacco budworms, giving Bollgard II dual efficacy for both pests. The two-gene system also reduces the chance that insect resistance will develop.