Question

Why biological control is the major component of IPM? Explain its merits and demerits.

28 Jan 2026
Answer :
Word Count : 482
Biological control is considered a major component of Integrated Pest Management (IPM) because it emphasizes the use of natural enemies to regulate pest populations, thereby reducing the reliance on chemical pesticides. In IPM, the goal is to maintain pest populations below economically damaging levels rather than complete eradication, and biological control fits seamlessly into this sustainable strategy. Natural enemies, including predators, parasitoids, and pathogens, play a critical role in maintaining ecological balance. For instance, lady beetles and lacewings prey on aphids, while parasitic wasps target caterpillar pests. Microbial agents such as Bacillus thuringiensis and Beauveria bassiana infect and kill specific pests without harming beneficial organisms or the environment. By integrating these biological agents, IPM reduces the chemical load on crops, decreases environmental pollution, and promotes biodiversity within agroecosystems. One of the key merits of biological control is its specificity. Most natural enemies target specific pests, minimizing the impact on
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