Защита растений

Economic threshold

The pest population density at which control measures should be initiated to prevent an increasing pest population from reaching the economic injury level.

Также говорят: ET, economic injury level, pest threshold

The economic threshold serves as a management guide to determine when intervention is necessary to protect crop yield. It bridges the gap between biological monitoring and financial efficiency, ensuring that the cost of control does not exceed the value of the crop protected.

Farmers determine this point by regularly scouting fields and applying scientific standards relevant to the specific crop and pest life cycle. Effective decision-making relies on accurate sampling methods to avoid over- or under-estimating the actual infestation levels.

A common mistake is applying pesticides preventively regardless of pest pressure. This often leads to increased chemical costs, environmental impact, and the potential for pests to develop resistance to standard treatments.