Degradation dynamics of Cry1Ab insecticidal protein within transgenic Bacillus thuringiensis corn plant debris under different conditions Insecticidal activity of Cry2Ab proteins to Agrotis ypsilon Expression and degradation of Cry1Ab protein in Bt hybrid rice and its impacts on ground-dwelling Entomobrya griseoolivata occurrence in postharvest seasons Insecticidal activity of protein from Xenorhabdus nematophila var. pekingensis to Helicoverpa armigera Temporal expression patterns of Cry1Ab insecticidal protein in Bt rice plants and its degradation in paddy soils Construction of A Pine Needle Symbiotic Engineered Bacterium Exhibiting the Insecticidal Activity to Dendrolimus punctatus Effects of nitrogen fertilizer methods on the content of Bacillus thuringiensis insecticidal protein and yield of transgenic cotton ON THE SPATIO-TEMPORAL EXPRESSION OF THE CONTENTS OF Bt INSECTICIDAL PROTEIN ANDTHE RESISTANCE OF Bt TRANSGENIC COTTON TO COTTON BOLLWORM