Which statement best describes the economic injury level?

Which statement best describes the economic injury level?

• A. The pest threshold for when crop damage becomes unacceptable
• B. The best time to harvest
• C. The break-even point where cost of control equals amount of damage
• D. The maximum pest population tolerated before control

Answer: (C)

The economic injury level is the break-even point where the cost of controlling a pest equals the amount of crop damage the pest would cause. It’s a decision point: if pest damage at the current density would cost more than it would to control, applying treatment increases net profit; if the damage would cost less, control isn’t economically justified. This threshold depends on factors like crop value, potential yield loss per pest, and how effective the control method is. In short, it’s about balancing what you’d lose if you don’t treat versus what you’d spend to treat.

The economic injury level is the break-even point where the cost of controlling a pest equals the amount of crop damage the pest would cause. It’s a decision point: if pest damage at the current density would cost more than it would to control, applying treatment increases net profit; if the damage would cost less, control isn’t economically justified. This threshold depends on factors like crop value, potential yield loss per pest, and how effective the control method is. In short, it’s about balancing what you’d lose if you don’t treat versus what you’d spend to treat.