Recovery of Bacillus thuringiensis var. thuringiensis from field soils
Authors: Saleh, S.M., Harris, R.F., Allen, O.N.
Journal, Volume, Year: Journal of Invertebrate Pathology, volume 15:55-59, 1970
Recovery of Bt was evaluated from different soil types after application of Thuricide and Biotrol to control insect pests on cabbage and lettuce crops.
This study did not use Bt produced from transgenic crops.