Which term describes the horizontal movement of water across a surface that can transport pesticide?

Which term describes the horizontal movement of water across a surface that can transport pesticide?

• A. Runoff
• B. Drift
• C. Particle Drift
• D. Absorption

Answer: (A)

Runoff describes water moving horizontally across a surface, and it can carry pesticides with it as it flows. After a pesticide is applied to turf, rain or irrigation can generate surface water flow. The pesticide may be dissolved in the water or cling to soil particles; as the water runs, it can transport those contaminants off the treated area into non-target zones such as streets, storm drains, or nearby streams. This movement is different from drift, which is pesticides moving through the air, and from absorption, where pesticides are taken up into the surface rather than moved along it. To minimize runoff, apply under suitable weather conditions, use buffer zones, or incorporate pesticides into the soil when feasible.

Runoff describes water moving horizontally across a surface, and it can carry pesticides with it as it flows. After a pesticide is applied to turf, rain or irrigation can generate surface water flow. The pesticide may be dissolved in the water or cling to soil particles; as the water runs, it can transport those contaminants off the treated area into non-target zones such as streets, storm drains, or nearby streams. This movement is different from drift, which is pesticides moving through the air, and from absorption, where pesticides are taken up into the surface rather than moved along it. To minimize runoff, apply under suitable weather conditions, use buffer zones, or incorporate pesticides into the soil when feasible.