Bestway PRO-MOUNT 360, Operator'S Manual

Page: 42 / 91

D11
Spray Nozzle Selection
Nozzle, or spray tip, selection is
often based upon droplet size, which
refers to the diameter of an individ-
ual spray droplet. In addition to its
importance in controlling drift,
droplet size from a nozzle becomes
important when the efficacy of a
particular crop chemical is dependent
on coverage. Always refer to the
chemical label for recommendations
on spray tip size and type.
•
The majority of nozzles used in agriculture can be classified as producing either fine,
medium, coarse or very coarse droplets.
•
Nozzles which produce fine droplets are usually recommended for post-emergence
applications, which require excellent coverage on leaf surfaces.
•
The most common nozzles used in agriculture are those which produce medium sized
droplets. These can be used for contact and systemic herbicides, preemergence surface
applied herbicides, insecticides and fungicides.
•
Remember that a spray nozzle in any droplet size category can produce different size
droplets at different spray pressures. A nozzle might produce medium droplets at low
pressures, while producing fine droplets as pressure is increased.