What are biopesticides?

• A. Chemical synthetics for pest control
• B. Natural organisms or substances for pest control
• C. Heavy metals used in agriculture
• D. Fertilizers that enhance plant growth

Answer: (B)

Biopesticides refer to natural organisms or substances used for pest control, making this answer accurate. They typically include naturally occurring microbes, plants, or naturally derived compounds that help manage agricultural pests while being less harmful to non-target organisms and the environment compared to conventional chemical pesticides.

The significance of biopesticides lies in their role in integrated pest management strategies, promoting sustainable agricultural practices. They can target specific pest populations, minimizing the risk of resistance that often develops with synthetic chemical pesticides. For instance, a biopesticide might involve the use of beneficial insects that predate on crop pests or fungal spores that target and kill specific pest species without affecting other wildlife or plant life.

Chemical synthetics, heavy metals, and fertilizers do not align with the definition of biopesticides. Chemical synthetics are typically man-made chemicals that may have broader ecological impacts, heavy metals can be toxic pollutants affecting soil and water quality, and fertilizers primarily focus on plant nutrient enhancement rather than pest control.