What is the primary purpose of soil incorporation in pesticide application?

Soil incorporation of pesticides primarily aims to move the pesticide into the soil using methods such as tillage or irrigation. This technique is particularly important for pesticides intended to control soil-borne pests or diseases. By integrating the pesticide into the soil, it becomes more effective in targeting the specific organisms present in the soil environment, which may not be adequately addressed if only applied on the surface.

Effective soil incorporation also helps to reduce the risk of pesticide runoff into water bodies and minimizes exposure to non-target species, while ensuring that the pesticide maintains its effectiveness for an extended duration in the soil where it can be readily accessed by the pests it is designed to control. This method also supports the longevity and stability of the pesticide within the soil matrix, providing a fortified barrier against pest invasion.