Which statement is true about pesticide effects on non-target organisms?

• A. Drift is one of the primary causes of damage to crops and other plants in adjacent areas
• B. Non-target organisms are always unaffected
• C. Pesticides never affect beneficial insects
• D. Drift improves crop yield

Answer: (A)

Drift is the movement of pesticide away from the target area by wind and air currents, and it is a major way that pesticides reach non-target crops and other organisms in neighboring areas. This happens when droplets are too fine, spraying is done with conditions that promote carry-on, or equipment and methods (like high boom heights or certain nozzle types) generate off-target dispersal. Because of this, nearby plants, wildlife, pollinators, and other non-target organisms can be exposed and damaged, making drift a key factor in off-target effects.

Other statements don’t fit because non-target organisms can be harmed by pesticides, including beneficial insects, and drift does not improve yields; it typically risks reduced yield and additional costs from damaged neighboring crops or ecosystems. To reduce drift, practitioners follow label directions, use drift-reducing nozzles and proper droplet sizes, calibrate equipment, apply under appropriate weather conditions, and maintain buffer zones.