What best describes pesticide resistance and how can it be managed?

• A. Pesticide resistance is caused by chemical degradation in the environment; always use the same product to build tolerance.
• B. Genetic adaptation of pests reducing product efficacy; rotate modes of action, use tank mixes or alternating products, and follow label directions.
• C. Pesticide resistance means pests become immune to all pests; use more pesticide.
• D. It is a marketing term with no scientific basis; ignore management.

Answer: (B)