What should air blast sprayers never be used to apply?

Air blast sprayers are designed to apply pesticides efficiently to large volumes of foliage, but they are not suitable for every type of pesticide application. The concern with using air blast sprayers primarily relates to the potential for drift and the application method's efficiency with certain types of products.

Herbicides, in particular, have a high potential for drift due to their method of application with air blast equipment, which can create fine droplets that are easily carried by the wind. This can lead to unintentional application onto non-target plants, resulting in damage or unintended consequences.

In contrast, insecticides and fungicides can typically be applied in a manner that better aligns with the capabilities of air blast sprayers, and the risk of negative impacts is reduced when proper techniques are employed. Therefore, avoiding the use of air blast sprayers for herbicides is best practice to minimize the risk of drift and protect sensitive areas.