Question

Why should biological control of pests and pathogens be preferred
to the conventional use of chemical pesticides? Explain how the following microbes act as biocontrol agents?
(i) Bacillus thuringiensis (ii) Nucleopolyhedrovirus.​

Answer 1

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Biological control of pests and pathogens is preferred over the conventional use of chemical pesticides because: (i) The chemicals cause pollution of water bodies as well as groundwater. They also enter the plant body through the soil.

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