Understanding a pest's lifecycle helps you time treatments to hit the pest during which phase?

• A. Dormant stage
• B. Feeding exclusively on roots
• C. Most vulnerable stage
• D. When it is abundant in population

Answer: (C)

Understanding a pest’s lifecycle lets you time treatments for when it is most vulnerable. At that phase the pest is actively growing or feeding, often with a softer body or exposed tissues, so the pesticide can be absorbed or ingested more easily and kill more individuals with less chemical. Targeting this stage disrupts development and reduces reproduction, making control more efficient. Treating during a dormant stage is less effective because metabolism is low and they’re harder to kill; waiting until pests are abundant doesn’t guarantee exposure of all individuals and can waste product.