In IPM, the decision to continue, modify, or stop a pest control effort is based on

• A. Pesticide cost
• B. Previous crop yield
• C. Evaluation results
• D. Pest color

Answer: (C)

In IPM, decisions to continue, modify, or stop a pest control effort come from evaluation results gathered through careful monitoring. You’re looking at real data—pest population levels, the amount of crop damage, and how well the current control measures are working. If those evaluation results show pest pressure is below the economic threshold and the crop is healthy, you keep the plan as is. If the results indicate pests are rising or damage is increasing, you adjust the tactic, perhaps changing products, timing, or methods, or you may stop if the effort isn’t effective or cost-efficient. The core idea is to let evidence from monitoring guide the action, ensuring actions are warranted and beneficial.

Pesticide cost matters for the overall cost-benefit picture, but it doesn’t set the immediate decision by itself. Previous crop yield isn’t a direct measure of current pest management success, though it can inform planning. Pest color doesn’t reliably reflect pest pressure or damage, so decisions aren’t based on color alone.