Wyoming Pesticide Applicator Certification Practice Test

What is the purpose of Soil Drench in pesticide application?

1. The movement of a pesticide into soil by either mechanical means or irrigation.

2. A thick suspension of a pesticide made from a wettable powder and water.

3. A pesticide applied directly on or in the soil rather than on a growing plant.

4. To soak or wet the ground surface with a pesticide. Large volumes of the pesticide mixture are usually needed to saturate the soil to any depth.

The correct answer is: To soak or wet the ground surface with a pesticide. Large volumes of the pesticide mixture are usually needed to saturate the soil to any depth.

The purpose of a Soil Drench in pesticide application is to soak or wet the ground surface with a pesticide. This method requires large volumes of the pesticide mixture to saturate the soil to any desired depth. By applying the pesticide directly to the soil in this way, it helps target pests that may be living in the soil or affecting plant roots. This method is particularly useful when dealing with pests that reside in the soil or for protecting plants from root-feeding insects or diseases. Option A is related to soil incorporation, which involves the movement of a pesticide into the soil through mechanical means or irrigation, but it is not the purpose of a Soil Drench application. Option B describes a different type of pesticide formulation, not the purpose of Soil Drench. Option C mentions applying pesticides directly on or in the soil, but it does not specifically describe the act of soaking or wetting the ground surface as in a Soil Drench application.