Which of the following is NOT required in records for pesticide use?

The correct choice identifies an element that, while important for general agricultural practices, is not mandated to be recorded in the context of pesticide use according to regulatory requirements. Specifically, the weather conditions at the time of application are typically not required in official record-keeping guidelines, even though they can influence the efficacy and environmental impact of the pesticide.

On the other hand, the name and concentration of the pesticide, the date of application, and the method of application are crucial components that must be documented. These elements provide essential information for tracking pesticide use, ensuring compliance with safety regulations, and enabling effective management practices. Recording the name and concentration helps to ensure that the correct pesticide is applied, while the date allows for monitoring of treatment schedules and intervals. The method of application is critical for understanding how the pesticide was delivered to the target area, which can affect its effectiveness and environmental impact.

In summary, while weather conditions can influence pesticide applications, they are not a necessary component of the required records, making the identification of this option as the correct answer accurate.