What practice will help in reducing pesticide contamination of groundwater?

Choosing a pesticide that is least likely to leach into groundwater is a crucial practice for reducing pesticide contamination. This approach focuses on the chemical properties of the pesticide, such as its solubility and ability to bind to soil particles. Pesticides that are less prone to leaching will stay in the upper soil layers where they can be more effectively absorbed by plants and are less likely to migrate down through the soil profile into the groundwater.

By selecting pesticides with lower leaching potential, applicators contribute to the protection of groundwater resources, ensuring that aquifers remain clean and safe for drinking and irrigation. This choice is supported by research and regulatory guidelines aimed at minimizing the environmental impact of pesticide use on water quality.