Persistence of Bacillus thuringiensis in two formulations applied by helicopter against the western spruce budworm (Lepidoptera:Tortricidae) in North Central Oregon
Authors: Beckwith, R.C., Stelzer, M.J.
Journal, Volume, Year: Journal of Economic Entomology, volume 80(1):204-207, 1987
The field persistence of Bt was determined using Thuricide 32LV (HD-1) and SAN-415 32LV (NRD-12) applied by helicopter to control the western spruce budworm.
This study did not use Bt from transgenic crops.