What is a primary benefit of using a granular insecticide formulation on a site without irrigation?

Using a granular insecticide formulation in a site without irrigation offers the significant advantage of longevity. When granules are applied, they can release active ingredients over an extended period, particularly in the absence of water to enhance their breakdown. This extended release is beneficial because it allows the insecticide to remain effective until rain falls or enough moisture becomes available to activate it. As a result, granules can provide sustained pest control compared to other formulations that may wash away or degrade quickly in dry conditions.

This characteristic is particularly important in regions or during seasons where rainfall is infrequent, as it ensures that the efficacy of the control measure is maximized over time, potentially reducing the need for multiple applications and making pest control more efficient.