When must an application be submitted to the Ohio EPA regarding pesticide use?

An application must be submitted to the Ohio EPA regarding pesticide use before any chemicals are applied for control. This requirement ensures that the appropriate regulatory oversight is in place prior to the initiation of pesticide application activities. Submitting an application in advance allows the Ohio EPA to review the proposed use of pesticides, assess potential environmental impacts, and ensure compliance with state regulations. This proactive approach is critical for protecting aquatic ecosystems and human health.

Other options imply actions after the fact, such as submitting applications post-application or at later dates, which do not align with regulatory protocols aimed at preventing unintended exposure or environmental harm before pesticide use occurs.