Which pest management method uses barriers to keep pests from crops?

• A. Exclusion
• B. Cultivation
• C. Habitat modification
• D. Chemical control

Answer: (A)

Exclusion works by creating physical barriers that block pests from reaching crops. Using things like nets, row covers, screens, or fences keeps insects and other pests out before they can cause damage, reducing the need for pesticides. It’s a preventive approach, focusing on blocking entry rather than killing pests or altering the environment around the crop.

Cultivation involves soil and planting practices to suppress pests, not barriers. Habitat modification changes the growing environment to make it less favorable for pests. Chemical control uses pesticides to kill pests.