Which option is an example of a biological control of pests?

Which option is an example of a biological control of pests?

• A. Integrated pest management
• B. Species specific pesticides
• C. Chemical pesticides
• D. Biological control of pests

Answer: (D)

Biological control of pests means using living organisms to reduce pest numbers, such as releasing lady beetles to eat aphids or using parasitoid wasps to target pest larvae. This approach relies on natural ecological relationships rather than chemicals. Integrated pest management is a broader strategy that may include biological control as one component, but it is not itself an example of biological control. Chemical pesticides and species-specific pesticides are chemical strategies, not living-organism controls. So the idea of using living organisms to directly suppress pests is the essence of biological control.