Microbe used for biocontrol of pest butterfly caterpillars is

Options

(a) Trichoderma sp.
(b) Saccharomyces cerevisiae
(c) Bacillus thuringiensis
(d) Streptococcus sp.

Correct Answer:

Bacillus thuringiensis

Explanation:

Bacillus thuringiensis (Bt) produce the insecticidal cry protein which kills the larvae of insects (including butterflies). These bacterial spores are covered with leaves. So that only pest caterpillars which feed on leaves only will die.