What is the economic injury level (EIL) in IPM?

The economic injury level (EIL) represents the minimum population density of a pest that will cause economic damage to a crop or commodity. Essentially, it is the point at which the cost of pest damage will exceed the cost of controlling the pest, making intervention economically justified. This concept is crucial for integrated pest management as it guides decision-making regarding whether to initiate control measures or not.

Understanding the EIL helps farmers and pest management professionals make informed choices that balance economic factors and environmental sustainability. By determining the EIL, they can avoid unnecessary pesticide applications while also preventing significant economic losses from pest damage. This approach ensures that pest management efforts are both cost-effective and environmentally responsible.