Application Equipment for ASR Bobby Grisso Biological Systems Engineering

New Technologies Needed?

Droplet Classification Droplet Size (microns) Recommended Uses Fine Insecticides and Fungicides Medium Medium Herbicides and Postemergence Coarse Very Coarse> 464Soil Applications of Herbicides

GlyphosateInsecticideFungicide Spray Target Weeds – not soybean plants or leaves per se All soybean leaves and stems, including bottom surface of leaves All soybean leaves, especially lower part of plant and bottom surface of leaves Drift Control Critical to prevent damage to adjacent crops or plants Generally important when using pesticides to prevent off-target movement Volume 10 gal/acre10 to 20 gal/acre Pressure 20 to 30 psi, depending on nozzle 40 to 50 psi, depending on nozzle 50 psi or higher, depending on nozzle Nozzle Type hollow cone or other Twin flat fan or flat fan Restrict Speed? Usually not necessary May be necessary to help insure uniform coverage

BMP’s for Nozzle Selection Application rate = 20 GPA Use MEDIUM droplets Use a twin nozzle package Purchase your nozzles NOW! Prepare your sprayer and calibrate NOW!

Turbodrop 20, 40, 80 psi XR 20, 40, 80 psi

BMP’s for Nozzle Selection Application rate = 20 GPA Use MEDIUM droplets Use a twin nozzle package Purchase your nozzles NOW! Prepare your sprayer and calibrate NOW!

Nozzle Selection Chart: Flat-fan

Soybean Rust – medium droplet

Nozzle Selection Chart: Flat-fan

Single Nozzle

Twin Nozzles

Air-assisted sprayers

Spray Coupe with ESP Electrostatic Spraying

Application Decisions?

BMP’s for Nozzle Selection Application rate = 20 GPA Use MEDIUM droplets Use a twin nozzle package Purchase your nozzles NOW! Prepare your sprayer and calibrate NOW!