Best Management Practices for Orchard Spraying

Pre-season

Maintenance

Check List

Faulty sprayers contribute to increased drift and waste money through inefficient use of chemicals.

 

The cost of replacing faulty parts is quickly recouped through increased sprayer

efficiency and accuracy.

Hoses

Filters

Tank

Controls

*         for splits and cracks

*         connections to ensure they are water tight

*         for hose chafe, particularly in routing clips

*         for missing filter elements and seals

*         for leaks around the joints

*         for blocked or damaged filters  

*         for splits, cracks and any other damage

*         the tank sits firmly in its mount

*         the securing straps are correctly adjusted

*         the agitation is working properly

*         the tank is clean

Pressure

Gauge

Nozzles

Pump

*         the control mechanism for correct operation

*         Valves for both internal and external leaks     

*         all of the nozzles are replaced as needed

*         all nozzles are in good condition, with no leaks around the body

*         all nozzles are clean and free from obstruction

*         all nozzles deliver to within + / 0.5% of the manufacturer’s chart value

*         the lubrication levels

*         for leaks

*         the air pressure in the pulsation chamber is at the recommended level

*         the pump rotates freely without friction or noise.

*         The pressure gauge is vital for indicating whether the nozzles are delivering the correct amount of chemical per unit time while spraying

*         If you have any doubts about the pressure gauge, replace it or refer the problem to the manufacturer of supplier

Check...

Annual maintenance will help ensure efficient sprayer operation through the season