In the June 1998 issue of Prairie Grains is an article discussing the way that you should Apply Fungicides Effectively. In this article you will learn that there are different factors that make applying fungicides more effective. Nozzle angle is an important part of applying fungicides. A double swivel nozzle body will allow you to have a better application to the plant head. Nozzle size is also important.
Smaller nozzles seem to work a lot better than larger nozzles.
Spray pressure is also very important when applying fungicides. At 40 psi, the spray has enough force to go directly onto the heads of the plant. At 30, psi there is not enough pressure and at 60 psi there is too much pressure. Ground speed and Gallons per acre are important when applying fungicides. NDSU suggests smaller nozzles and a lower ground speed are more effective.