The application of pesticides is the most commonly used method for controlling arthropod pests and diseases on pecan trees. Because of the size of the pecan tree, pesticides are primarily applied with large spray machines known as air-assisted sprayers. (PDF Format Only)

One of the most important objectives during spraying is the delivery of the correct volume per area (gallons per acre). The efficiency of the chemical intimately depends on the application of an accurate rate. Learn how to calibrate a sprayer by following these simple steps. Illustrations, useful conversions and worksheets included. (PDF Format Only)