Georgia Pesticide Applicators Practice Exam

Pesticides and water move downward rapidly in which type of soil?

1. Clay soils

2. Sandy soils

3. Loamy soils

4. Peaty soils

The correct answer is: Sandy soils

Sandy soils are characterized by their large particles and good drainage properties, which allow water and pesticides to move downward quickly through the soil profile. The structure of sandy soil creates larger gaps between the particles, enabling rapid percolation and preventing the retention of moisture. This means that when pesticides are applied to sandy soils, they can leach down into the soil more efficiently compared to soils with finer particles, like clay. The quick movement can impact how effectively the pesticide works and also raises considerations about potential groundwater contamination, making it essential for applicators to understand soil composition when applying pesticides.