Which of the following is controlled by using Bacillus thuringiensis?

Nematodes. Insect pests. Fungal pathogens. Bacterial pathogens.

Insect pests.

Microbial biocontrol agents that can be introduced in order to control butterfly caterpillars is the bacteria Bacillus thuringiensis (often written as Bt).The scientists have introduced B. thuringiensis toxin genes into plants. Such plants are resistant to attack by insect pests. Bt-cotton is one such example, which is being cultivated in some states of our country.