What does the REI (Restricted Entry Interval) indicate on pesticide labels?

The REI, or Restricted Entry Interval, is a critical safety guideline found on pesticide labels, indicating the time period required before unprotected individuals can safely re-enter a treated area. This interval is established to protect workers and others from potential exposure to pesticide residues that may be harmful if inhaled or absorbed through the skin shortly after application.

The determination of the REI takes into consideration the toxicity of the pesticide, its application method, and environmental factors, ensuring that individuals who do not wear protective gear can avoid health risks associated with direct exposure. Once the REI has passed, the treated area is considered safe for entry without protective equipment, thereby contributing to safe agricultural practices and minimizing health risks related to pesticide use.