a) Baculoviruses are excellent candidates for integrated pest management in an ecologically sensitive area. Explain giving two reasons.
(b) What is organic farming? Why is it suggested to switch over to organic farming ?
Answers
Answer:
) They are species – specific, narrow spectrum bio-control agents. They have no negative impacts on plants, mammals, birds, fish or non-target insects.
(b) Organic farming refers to the use of biofertilisers and biopesticides. Organic farming is advised as it does not have the following harmful effects caused by chemical fertilizers and pesticides:
(i) The chemical fertilisers cause pollution of environment and in the long run make the soil unsuitable for cultivation.
(ii) The chemical pesticides are toxic and destroy a large number of useful insects along with the pests.
(iii) They also enter the food chain and cause harmful effects.
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Baculoviruses are biological controlling agents and are an excellent source for insecticidal applications. They have no negative effect on plants. They alter the physico chemical nature. Due to this reason, they are excellent candidates for integrated pest management....