Which of the following is an IPM practice?

• A. Weekly spraying of pesticides without monitoring
• B. Crop rotation
• C. Destroying habitat
• D. Ignoring pest thresholds

Answer: (B)

IPM uses a mix of tactics to manage pests while reducing environmental impact, including careful monitoring, action thresholds, and cultural, biological, and chemical strategies when needed. Crop rotation fits this approach because changing the crop each season disrupts pest life cycles and lowers pest buildup, which reduces the reliance on pesticides and supports natural pest controls. The other options miss key IPM principles: spraying weekly without monitoring ignores pest levels and can promote resistance; destroying habitat removes beneficial organisms that help keep pests in check; and ignoring pest thresholds leads to actions taken without evidence of actual pest pressure.