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Question

Which of the following micro-organisms are used in the biological control of pests?

A
Trycoderma
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B
Bacillus thuringiensis
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C
Stem borer
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D
Tungro virus
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Solution

The correct options are
A Trycoderma
B Bacillus thuringiensis
Biological control methods implement predatory insects as well as several micro-organisms which destroys the pests population on crops.
Micro-organisms like Trychoderma bacterium, Bacillus thuringiensis, etc., destroys pests. Whereas, stem borers and tungro viruses are infectious to the crops.

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