Which term describes a pest population that rebounds to higher numbers after suppression?

• A. Pest Resistance
• B. Pest Resurgence
• C. Secondary outbreak
• D. Pest Decline

Answer: (B)

Pest resurgence describes a rebound to higher pest numbers after they have been suppressed. When a control measure reduces the population, the pest can bounce back quickly, sometimes even exceeding the original level. This happens because natural enemies that helped keep the pest in check may be reduced by the control itself, or the pest may have a rapid life cycle and high reproductive rate that lets it recover fast once pressure is lifted. It’s different from pest resistance, which means the pests survive a pesticide due to genetic traits rather than ecological rebound. It’s also distinct from a secondary outbreak, which would involve a different pest becoming problematic after management actions.