Agriculture Reference
In-Depth Information
A spray-dip machine usually consists of a trailer-mounted chute with solid
walls and gates at either end. The chute is located above a shallow tank and is
equipped with several rows of large nozzles mounted in a manner that directs
the spray mixture to thoroughly cover each animal. A large centrifugal pump
supplies the pesticide to the nozzles. Surplus and runoff spray falls back into
the tank where it is filtered and recycled to the nozzles.
Figure 8.22
shows a
diagram of a spray-dip machine application.
C. FACE AND BACK RUBBERS
Face and back rubbers are bags or other containers of dry or liquid pesti-
cide formulation used to control external parasites of livestock. They are used
in farm, ranch, and other livestock confinement operations. The face and back
rubbers are hung or mounted in areas adjacent to high livestock traffic, such as
feeding troughs, watering troughs, and narrow gate entrances. When the ani-
mal rubs against the device, the pesticide is transferred to the animal's face,
back, sides, or legs.
Figure 8.22
Spray-dip machines are used to treat livestock for external para-
sites (EPA,
Applying Pesticides Correctly
).
