Why is crop protection product rotation recommended as part of IPM?

• A. To prevent resistance by using products with different modes of action.
• B. To simplify labeling requirements.
• C. To reduce application frequency.
• D. To increase the cost of control measures.

Answer: (A)

Rotating crop protection products among different modes of action is a resistance-management tactic used in IPM. When pests are repeatedly exposed to the same mode of action, individuals with resistance traits survive and reproduce, gradually making that product less effective. By switching to products that attack the pest in different ways or at different targets, you reduce the consistent selection pressure that drives resistance. This approach helps keep all tools effective longer and lowers the chance of cross-resistance, which is why it’s emphasized in IPM programs. It’s a practice that works with monitoring and other non-chemical methods to maintain control while minimizing environmental impact.