Associate Certified Entomologist (ACE) Practice Exam

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What is meant by insecticide rotation?

  1. Using the same insecticide for multiple seasons

  2. Incorporating different pest management techniques

  3. Applying insecticides with the same mode of action

  4. Rotating among insecticides with different modes of action

The correct answer is: Rotating among insecticides with different modes of action

Insecticide rotation refers to the practice of alternating between different insecticides that have different modes of action. This strategy is crucial in integrated pest management as it helps to manage and mitigate the development of insect resistance. When a single mode of action is used repetitively, pests can develop resistance to that specific chemical, rendering it less effective over time. By rotating insecticides with varying modes of action, you reduce the selection pressure on the pest population, making it harder for them to adapt and survive. This not only prolongs the effectiveness of each insecticide but also enhances pest control efficacy. The practice is vital for sustaining the effectiveness of available insecticides and promoting a more sustainable approach to pest management.

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