Agriculture Reference
In-Depth Information
2.
Trigger Pump Sprayer
With trigger pump sprayers, the pesticide is not packaged under pressure.
Instead, the pesticide and diluent are forced through the nozzle by pressure cre-
ated when the pump is squeezed. Their capacity ranges from one pint to one
gallon.
Figure 8.2
illustrates a trigger pump sprayer used for household pest
control.
Figure 8.2
Trigger pump sprayers are useful for mixing or diluting a limited
quantity of pesticide for a small job.
3.
Hose-End Sprayer
This device causes a fixed rate of pesticide to mix with the water flowing
through the hose to which it is attached. The mixture is expelled through a
high-volume nozzle. These sprayers usually hold no more than one quart (one
liter) of concentrated pesticide, but because the concentrate mixes with the
water, they may deliver 20 gallons or more of finished spray solution before
refilling.
Figure 8.3
depicts a hose-end sprayer used for small pest control
projects.
4.
Push-Pull Hand Pump Sprayer
This type of sprayer depends on a hand-operated plunger which forces air
out of a cylinder, creating a vacuum at the top of a siphon tube. The suction
