When drift or runoff is a concern, you should use a rate below the recommended label rate.

• A. Use a rate below the label rate
• B. Use the label rate
• C. Increase the rate
• D. Apply at night

Answer: (B)

Using the label rate is the best approach because the rate on the label is the amount proven to be effective for the target pest on that crop and also set to protect people, non-targets, and the environment. Lowering the rate in an attempt to reduce drift or runoff can leave pests inadequately controlled and may violate the label requirements. Sublethal exposure can even contribute to resistance and unpredictably affect results.

To manage drift and runoff without changing the labeled rate, use drift-reduction practices such as selecting appropriate nozzle types and spray pressures, choosing a suitable droplet size, keeping the boom at the recommended height, applying under favorable weather conditions, and maintaining required buffer zones. Applying at night is not a reliable or universally permitted drift-control measure and should only be done if the label allows.