What is the primary reason for the need for constant tank agitation with wettable powders?

The primary reason for the need for constant tank agitation with wettable powders is to ensure even distribution of the powder. Wettable powders can settle at the bottom of the tank if not kept in motion. This settling can lead to uneven application of the herbicide, resulting in ineffective treatment and potentially harmful consequences for the aquatic environment. Maintaining agitation allows the particles to remain suspended in the liquid, so when the herbicide is applied, it is applied uniformly over the targeted area. This uniformity is critical in achieving the desired efficacy of the aquatic herbicides while minimizing the risk of overapplication or underapplication, which could lead to issues such as plant resistance or environmental harm.