Persistence of formulations of Bacillus thuringiensis spores and crystals on eastern red cedar foliage in Missouri
Authors: Hostetter, D.L., Ignoffo, C.M., Kearby, W.H.
Journal, Volume, Year: Journal of the Kansas Entomological Society, volume 48:189-193, 1975
Study evaluating the persistence of four formulations of Bt on eastern red cedar. Activity was still seen after 14 days for Dipel and Thuricide.
Did not use transgenic Bt.