Question

Biological control of agricultural pests, unlike chemical control, is

• A. Very expensive
• B. Self perpetuating
• C. Toxic
• D. Polluting

Answer 1

Answer: (B)

Self perpetuating

The biological control method involves the use of the living organisms which act as the predators of the pests and harmful insects. The main advantage of the biological control method in the control of agricultural pests is that they are self-perpetuating. There is no need to add these agents again and again as they are living organisms and can reproduce to increase their number and maintain their continuity.

Thus, the correct answer is option B.