A new insecticide, Coragen, by DuPont, is now labeled for use on cotton (and several other crops). The active ingredient of Coragen is rynaxypyr, an insecticide in the new class, anthranilic diamides. Its main strength is against lepidopterous pests which means corn earworm (cotton bollworm), tobacco budworm, and fall and beat armyworms. We have done a fair amount of field testing against corn earworm and it works very well. Please see the product label for details.