Which license is needed by someone supervising their own pesticide application for agricultural purposes?

The correct choice is a Private Applicator License. This license is specifically designed for individuals who apply pesticides for agricultural purposes on their own property or for the production of agricultural commodities. Farmers or ranchers who use restricted-use pesticides on their land are required to have this license, as it ensures they have received proper training to handle and apply these potentially hazardous materials safely and in compliance with regulatory standards.

The Private Applicator License reflects the need for individuals to understand both the risks involved in pesticide use and the best practices for application. This includes knowledge of label requirements, safety measures, and environmental considerations. Thus, anyone supervising their own pesticide applications in the context of agriculture must possess this particular license to operate legally and safely.

Other licenses mentioned serve different purposes and aren't appropriate for a person applying pesticides on their own agricultural property. The Pest Control Dealer License pertains to businesses that sell pesticides, the Qualified Applicator License is for individuals who apply pesticides commercially for hire, and the Pesticide Broker License is related to the distribution of pesticide products. Therefore, the Private Applicator License is the only correct choice for someone supervising their own agricultural pesticide applications.