Most pesticide applicators are familiar with the conditions that lead to physical drift of chemicals, such as applications in high wind speeds. Recently, more attention has been given to temperature inversions and stable air masses and their effects on pesticide movement from intended plants. This presentation will help consultants, county agents, growers, and other practitioners in U.S. soybean-producing states to understand how temperature inversions and stable air contribute to pesticide movement, even though these conditions seem ideal for spraying. Specifically, practitioners will learn how to identify temperature inversions and weather conditions that can increase the risk of pesticide movement.
