What must supervisors ensure regarding helpers?

Supervisors play a critical role in ensuring that helpers adhere to safety protocols and guidelines, particularly when it comes to pesticide application. The correct answer emphasizes that helpers must follow label directions and safety requirements to ensure safe and effective use of pesticides. Proper adherence to label directions is essential because pesticide labels contain crucial information about safe handling, application rates, and environmental considerations, which are all designed to protect both the user and the environment.

By ensuring that helpers are well-informed and compliant with these label instructions and safety standards, supervisors help mitigate risks associated with pesticide use. This includes preventing potential health hazards to workers and non-target organisms, as well as avoiding legal repercussions resulting from improper pesticide use. In essence, adhering to label directions ensures that the application process aligns with best practices and regulatory standards.