For what kind of job would you use a spreader-sticker?

A spreader-sticker is specifically designed to improve the adhesion and retention of pesticides or herbicides on plants, particularly those with waxy or glossy leaf surfaces. Many plants have evolved to have these coatings as a protective adaptation, which can make it difficult for liquid treatments to effectively coat the leaves and penetrate for absorption. By using a spreader-sticker, applicators can enhance the spreading and sticking properties of the solution, ensuring that the chemical treatment remains on the leaf surface longer and improves its overall efficacy in controlling pests.

In contrast, while weed and brush control may involve various formulations, the specific use of a spreader-sticker is not a primary requirement due to the nature of the target plants. Similarly, treatments for hard-to-reach tree tops often involve different delivery methods or equipment that do not rely primarily on the use of a spreader-sticker. Finally, for soil pest treatment, such products are not typically necessary since the treatment is directed to the soil rather than the leaf surface where attachment issues are of concern.