If a biologist sees a PCO applying a restricted material without a permit from the grower, what action should be taken?

When a biologist encounters a Pest Control Operator (PCO) applying a restricted material without obtaining the necessary permit from the grower, the appropriate action is to give a notice of violation and to issue a stop and desist order. This course of action is crucial because it addresses the illegal use of a restricted material, which poses potential risks to human health, the environment, and agricultural practices.

Restricted materials are regulated due to their possible adverse effects, and applying such substances without proper authorization directly contravenes established agricultural safety regulations. Issuing a notice of violation holds the PCO accountable for their actions, effectively communicating that they have violated legal requirements. The stop and desist order prevents any further application of the material until the situation is rectified, safeguarding all interested parties, including the grower, consumers, and the ecosystem.

While other options such as continuing to monitor the situation, giving a warning, or reporting to agricultural authorities may seem reasonable, they do not provide immediate resolution to the violation. Monitoring is more passive and may allow further illegal application to occur. Warnings may not be sufficient to establish accountability for the violation. Reporting to the authorities, although important, should complement taking immediate corrective actions like issuing a notice of violation and a stop order to