How does humidity affect the effectiveness of aerial application?

Higher humidity can indeed lead to larger droplets and increased absorption. When humidity levels are elevated, the moisture in the air affects the behavior of spray droplets. Larger droplets can form due to the condensation of moisture on smaller droplets or the vaporization of some of the solvent in the pesticide mixture being altered in humid conditions.

As a result of these larger droplets, there is generally a better chance of the pesticide making effective contact with the target surface, such as crops or pests. This enhanced contact area can facilitate better pesticide absorption by the plant or insects, thereby enhancing the overall effectiveness of the aerial application.

In contrast, lower humidity levels can lead to smaller droplet sizes due to faster evaporation rates, which may not adhere effectively to surfaces, reducing the potential for absorption. Hence, the influence of humidity plays a significant role in optimizing aerial pesticide applications, making the understanding of its effects crucial for aerial applicators.