Q. Bacillus thuringiensis is widely used as:
Solution:
Solution:
Bacillus thuringiensis is widely used to control butterfly caterpillars. Spore of Bt are available as sachets which are mixed with water and sprayed onto vulnerable plants such as Brassica and fruit trees, where they are eaten by insects larvae. In the gut of the larvae, the toxin is released and the larvae geta killed.