Granule pesticides are especially effective when?

Granule pesticides are particularly effective when they are incorporated into the soil. This is because granules need to make contact with the target pests or plants in order to be effective. By integrating them into the soil, they can better reach soil-dwelling pests, such as insects or nematodes, and provide a more extended period of efficacy as they gradually release their active ingredients.

Incorporating granules into the soil also minimizes the risk of runoff and volatilization, which can occur when pesticides are simply applied to the surface, especially in wet conditions. Additionally, the ground moisture enhances the granules' activation, ensuring that they break down and release their active ingredients at targeted sites.

Granules applied in dry, arid conditions may not dissolve properly, leading to ineffective pest control as they remain inactive. Similarly, while water abundance (though helpful for dissolving certain types of pesticides) may promote quick runoff or leaching, it does not guarantee effectiveness without proper incorporation into the soil. Lastly, using granule pesticides in humid areas may risk excessive moisture leading to degradation or movement of the pesticide, making soil incorporation a more reliable method for efficacy across various conditions.