Persistence of Bacillus thuringiensis Berliner insecticidal activity on cotton foliage
Authors: Beegle, C.C., Dulmage, H.T., Wolfenbarger, D.A., Martinez, E.
Journal, Volume, Year: Environmental Entomology, volume 10:400-401, 1981
The persistence of insecticidal activity of Bt kurstaki on cotton leaves was determined using two techniques and two insect species. The half-life was between 1.5 and 2 days.
This study used Dipel, not transgenic plant material.