What is one reason for keeping detailed records of pesticide applications?

Keeping detailed records of pesticide applications is essential for regulatory compliance. In many jurisdictions, including Iowa, regulations require commercial applicators to maintain accurate and thorough records of all pesticide applications. This documentation serves several purposes: it helps ensure that the applicator is following legal guidelines, provides evidence of responsible usage in case of inspections, and can assist in tracking the effectiveness and safety of the products used over time. By maintaining these records, applicators can demonstrate adherence to state and federal laws and support environmental stewardship through responsible pesticide management.

Other options do not accurately reflect the primary purpose of record-keeping; increasing pesticide costs, promoting sales, or avoiding under-application are less central to the legal and compliance aspects of pesticide use.