Which statement describes the economic injury level (EIL)?

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Multiple Choice

Which statement describes the economic injury level (EIL)?

Economic injury level is the pest density at which the expected crop loss equals the cost of control. This means that at that density, the money you stand to lose from damage matches what you would spend to manage the pest; below it, control costs would exceed the savings from reduced damage, so treatment isn’t worth it, and above it, the savings from preventing damage exceed the control costs. It’s not about maximum damage, and it isn’t the trigger for any management by itself—that role is filled by the action or economic threshold, which is usually set lower to prevent reaching the EIL.

Economic injury level is the pest density at which the expected crop loss equals the cost of control. This means that at that density, the money you stand to lose from damage matches what you would spend to manage the pest; below it, control costs would exceed the savings from reduced damage, so treatment isn’t worth it, and above it, the savings from preventing damage exceed the control costs. It’s not about maximum damage, and it isn’t the trigger for any management by itself—that role is filled by the action or economic threshold, which is usually set lower to prevent reaching the EIL.

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