What does REI stand for in pesticide application?

The term REI stands for Restricted Entry Interval, which is a critical concept in pesticide application. The Restricted Entry Interval is the period of time immediately following the application of a pesticide during which it is prohibited for unprotected individuals to enter the treated area. This interval is established to minimize the risk of pesticide exposure and potential adverse health effects on workers and bystanders.

The REI is specified on the pesticide's label and is determined based on the toxicity of the chemical, its mode of action, and the potential for exposure. Compliance with the REI is essential for ensuring safety in agricultural and pesticide application practices, as it protects those who might inadvertently enter areas where pesticides have been applied.

By understanding REIs, pesticide applicators can ensure they are following legal and safety guidelines, thus fostering both human and environmental health in their operations.