Q.
Go through following matches with respect to biocontrol agents, and select the correct option.A. Ladybird beetle - AphidsB. Dragonflies - MosquitoesC. Bacillus thuringiensis - Butterflies/caterpillarsD. Trichoderma - Several plant pathogens
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a
Only A and B are correct.
b
Only C is correct.
c
Only D is correct.
d
All A, B, C and D are correct.
answer is D.
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Detailed Solution
Ladybird and Dragonflies are useful to get rid of aphids and mosquitoes, respectively and to control butterfly caterpillars the bacteria Bacillus thuringiensis is used, Trichoderma species are free-living fungi that are very common in the root ecosystems. They are effective biocontrol agents of several plant pathogens.
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