The effects of continuous exposure to low concentrations of the delta-endotoxin of Bacillus thuringiensis on the development of the tobacco budworm, Heliothis virescens
Authors: Dulmage, H.T., Martinez, E.
Journal, Volume, Year: Journal of Invertebrate Pathology, volume 22:14-22, 1973
The effects of low concentrations of Bt kurstaki delta-endotoxin on tobacco budworms, Heliothis virescens, were evaluated. Development time increased, pupal weight decreased and the number of larvae able to reach adulthood decreased as concentrations of Btk delta-endotoxin increased.
This study was not done using Bt from transgenic plants.