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Byju's Answer
Standard XIII
Biology
Introduction to Biocontrol Agents
Which of thes...
Question

Which of these is not a biocontrol agent?

A
Azotobacter
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B
Bacillus thuringiensis
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C
Dragonfly
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D
Ladybird
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Solution

The correct option is A Azotobacter
Bacillus thuringiensis produces a toxin that kills larvae of various insects. Ladybird controls aphids and dragonfly reduces mosquito population. Azotobacter is a nitrogen-fixing bacterium.

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