First slide

Microbes as Biocontrol Agents

Question

Go through following matches with respect to biocontrol agents, and select the correct option.
A. Ladybird beetle - Aphids
B. Dragonflies - Mosquitoes
C. Bacillus thuringiensis - Butterflies/caterpillars
D. Trichoderma - Several plant pathogens

Easy

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.

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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