Application Techniques. Chris Boerboom Extension Weed Scientist University of Wisconsin. Application Goal. 1. Place fungicide as deep into the canopy as possible 2. Protectants require maximum coverage of soybean leaf surface Canopy penetration Small droplets -
Extension Weed Scientist
University of Wisconsin
Excellent spray distribution over a wide range of pressures: 15-60 PSI
Reduces drift at lower pressures, better coverage at higher pressures
Penetrates crop residue or dense foliage
Smaller droplets for thorough spray converge
Spray pressure: 30-60 PSI
110o flat spray pattern
Larger droplets for less drift
Spray pressure: 15-90 PSI
Excellent wear life - ideal for abrasive spray materials.
Produce smaller droplets for thorough coverage.
Spray pressure: 40-300 PSI
Larger droplets for less drift - large, air-filled drops through the use of a venturi air-aspirator
Spray pressure: 40-100 PSI