What is a common issue associated with using wettable powders?

A common issue associated with using wettable powders is indeed the difficulty in measuring or mixing. Wettable powders require thorough mixing to ensure that the pesticide is evenly suspended in the water during application. If not mixed properly, it can lead to inconsistent application rates and effectiveness.

This issue arises because wettable powders can clump together or settle at the bottom of the mixing container if not swirled or agitated properly. The user needs to pay careful attention to mixing techniques to ensure an effective application. Proper measuring tools and techniques are crucial in overcoming this challenge, as an inaccurate concentration can also affect both efficacy and environmental safety.

Other options, such as high absorption and less skin absorption, do not accurately reflect common issues specifically associated with wettable powders. Wettable powders typically have specific properties regarding absorption that are not inherently problematic, and their formulation is designed to minimize skin absorption hazards when applied according to label directions. While storage difficulty is a valid concern for some pesticide formulations, wettable powders are often easier to store compared to more volatile or complex formulations.