What is the primary responsibility of an agricultural employer regarding WPS?

The primary responsibility of an agricultural employer regarding the Worker Protection Standard (WPS) is to ensure worker compliance with restricted entry intervals. This requirement is established to protect workers from potential pesticide exposure after applications. Restricted entry intervals are specific time periods during which workers are prohibited from entering treated areas to avoid inhaling or coming into contact with pesticide residues. By enforcing these intervals, the employer is directly contributing to the safety and health of agricultural workers, minimizing the risk of pesticide-related illnesses.

While the other options relate to aspects of pesticide management or safety practices, they don't reflect the core responsibility mandated by the WPS. Promoting pesticide sales, applying pesticides safely, or providing training on pesticide application are important activities, but they do not specifically target the critical responsibility outlined by WPS in terms of protecting workers in the fields directly after pesticide application.