NOZZLE TYPES FOR USE ON FIELD CROPS

Type Suggested Use Recommended PSI Spray Pattern Type
Hollow cone Most contact insecticides & fungicides; postemergence banding of herbicides 60 psi & above; below 40 psi if for weed control Circular - light applications in center, fine droplets
Flat fan Pre-& post emergence herbicide & some insecticides & fungicides 15-60 psi, not over 40 psi for weed spraying Fan-like pattern of medium droplets
Even-flat Banding herbicides, insecticides, fungicides 20 to 40 psi Uniform coverage across spray pattern, medium droplets
Flooding flat Pre-& postemergence herbicides where drift is hazardous 10-20 psi for max drift control; below 30 psi otherwise Fan-like, coarse droplets, numerous enough for weeds
Full cone, Raindrop Pre-plant soil incorporated 15 to 40 psi Full cone or hollow cone (with Raindrop). Large droplets.
Boomless Weed & brush control in pastures, fence row & roadsides 10-30 psi, never over 40 psi Fan-like, extra wide flat spray pattern with 18 to 33 ft coverage.

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Corn, Soybean, Wheat, and Alfalfa Field GuideBulletin 827