Maryland Pesticide Applicator Category 3 Practice Test 2026 – The All-in-One Guide to Mastering Ornamental and Turf Certification!

A nozzle screen serves as a protective filter inside the nozzle, catching debris and coarse particles before they reach the tiny orifice. By preventing those particles from clogging the opening, it helps maintain a consistent flow and spray pattern and reduces downtime from plugging and cleaning. The screen doesn’t change the chemical makeup of the mix, nor does it boost spray velocity or alter color; those outcomes are determined by the nozzle design and the pressure, not the screen. Regular inspection and cleaning of the screen help keep application uniform and reliable, especially when using water with impurities or tank-mixed additives.