Toxin proteins produced by the bacterial gene destroys 1.)Aphids 2.)grasshoppers 3.)Boll worms 4.)Beetles Share with your friends Share 0 Twinkling Girl........ answered this boll worms. 1 View Full Answer Ivy Tomy answered this Which bacterial gene?? In Bt Cotton, it destroys boll worms.. 0 Iswariya Anuraag answered this .Bookworm -3