When treating for flies, where should pesticides be applied?

When treating for flies, applying pesticides on resting surfaces is the most effective strategy. Flies typically land on surfaces to rest or feed, making these areas crucial for targeting with pesticides. By applying treatments directly on surfaces where flies commonly alight, the likelihood of contact with the pesticide increases, leading to more effective control of the fly population.

Options such as applying pesticides on plants, windows, and doors, or in the air may not be as effective for controlling flies. For instance, while flies may visit plants, these areas may not provide adequate opportunities for the pesticide to interact with flies. Similarly, applying treatments to windows and doors may not reach flies effectively if they are not directly landing on those surfaces. Airborne applications can lead to widespread dispersion but risk reducing the concentration of the pesticide and may not guarantee that flies will encounter the treatment.

Thus, focusing pesticide application on resting surfaces optimizes contact and enhances the overall efficacy of the fly control strategy.