Who must submit a monthly report of all pesticides used in a county?

The requirement for submitting a monthly report of all pesticides used in a county falls upon registered structural pest control companies. This is because these companies are regulated entities that are accountable for their pesticide application methods and practices. They are expected to maintain detailed records to ensure public safety, environmental protection, and compliance with state and local pesticide laws.

Registered structural pest control companies have the expertise and responsibility to report accurately on their pesticide usage, which includes tracking the types, amounts, and locations where pesticides are applied. This information plays an essential role in monitoring pesticide use, facilitating regulatory oversight, and helping to prevent misuse or over-application that could harm individuals or the environment.

The other groups mentioned, such as casual pesticide users, county residents, and landowners, do not typically have the same level of regulatory burden or oversight requirements as registered pest control companies. Thus, they are generally not obligated to submit such detailed reports.