Survival of two strains of Phthorimaea operculella (Lepidoptera: Gelechiidae) reared on transgenic potatoes expressing a Bacillus thuringiensis crystal protein Enrique Rico, Victoria Ballester. and José Luis MénsuaAgronomie, 18 2 (1998) 151-155DOI: https://doi.org/10.1051/agro:19980205