Why should preventive measures and biological control methods be preferred for protecting crops?
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Over-exposure to chemicals leads to environmental problems; hence, biological methods are preferred for protecting crops from pathogens, insects and rodents, along with increasing production. Since chemicals are harmful to plants and also to the animals which feed on them, bio-pesticides are used as a safe way of crop protection.
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