What measure can help prevent pesticide runoff?

Using buffer strips is an effective measure to help prevent pesticide runoff. Buffer strips are vegetated areas or zones of permanent vegetation that are maintained between agricultural fields and water bodies, such as streams, rivers, or lakes. They function as a filter, trapping and absorbing pesticides and other pollutants before they can reach the water sources. This not only safeguards aquatic ecosystems by minimizing contamination but also improves the overall health of the soil by promoting biodiversity and reducing erosion.

In contrast, applying pesticides during rain increases the likelihood of runoff because rain can wash pesticides off the field and into nearby water bodies. Increasing application rates can lead to higher concentrations of pesticides, which could enhance the potential for runoff. Applying at night might reduce evaporation and enhance absorption but doesn't directly address runoff concerns like buffer strips do. Therefore, the use of buffer strips stands out as a proactive and effective method of managing and mitigating the risk of pesticide runoff.