Showing papers by "Sun Yat-sen University published in 1977"
01 Jan 1977
TL;DR: The method used was to dip the silkworm eggs about hatching in different concentrations of the suspensions, and it was found feasible to employ a suitable formulation of galleriae as the standard to determine the potencies of various products of Bacillus thuringiensis in China.
Abstract: The present work deals with the standardization of Bacillus thuringiensis products by using newly-hatched silkworm laravae (Bombyx mori) as the test insects.Comparisons have been made with different varieties of the microbe including thuringiensis,galleriae,kurstaki and dendrolimus,and also with different test insects including the rice leaf roller,Cnaphaloerosis medinalis,the cabbage worm,Pieris canidia,and the pine caterpillar,Dendrolimus punctatus.The method used was to dip the silkworm eggs about hatching in different concentrations of the suspensions; and it was found feasible to employ a suitable formulation of galleriae as the standard to determine the potencies of various products of Bacillus thuringiensis in China.
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