Which is a common consequence if a pest population surpasses the economic threshold?

When a pest population exceeds the economic threshold, it means that the level of infestation has reached a point where the cost of damages caused by the pests outweighs the costs of control measures. This can lead to economic injury, which refers to actual financial losses incurred due to the pests harming crops, ornamental plants, or turf.

Recognizing this threshold is crucial for effective pest management—action needs to be taken before reaching this threshold to prevent damages that could significantly impact profitability or the health of the plants. The economic threshold serves as a guideline for when to implement control measures to protect both the plants and financial investment.

In contrast, while increased visibility of pests and enhanced pest resistance are issues that may arise from pest populations being high, they do not directly indicate economic consequences. Additionally, lower maintenance costs are typically not associated with high pest populations; in fact, the opposite is usually true, as increased pest management activities often drive up costs.