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

A spreader-sticker is a type of adjuvant used in pesticide application that enhances the efficacy of the pesticide. This is particularly important when treating plants with waxy leaf surfaces, such as many broadleaf plants. Waxy surfaces can make it difficult for pesticide solutions to adhere properly, resulting in reduced absorption and less effective pest control. By using a spreader-sticker, the pesticide can spread evenly across the leaf surface, penetrate better, and ensure that more of it is absorbed by the plant, thus increasing its efficacy.

Other options, while they relate to pest control, do not specifically relate to the advantages that spreader-sticker offers. For instance, while a spreader-sticker might improve adhesion in various scenarios, it is not a typical choice primarily for weed and brush control, as those scenarios often involve different formulations and methods. Similarly, reaching hard-to-access tree tops requires different application techniques and equipment rather than merely relying on a spreader-sticker. Lastly, soil pest treatment does not involve leaf surface adhesion, so a spreader-sticker would not be relevant in that context.