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Sprayer Cleanout

Sprayer Cleanout . Sprayer Cleanout. Has always been important but even more so now. “Hot” burndown trts . because of Rs weeds. Wide variety of crops and pesticides on a single farm. GMO & Conv. side by side or on same farm. Products sometimes active at very low rates.

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Sprayer Cleanout

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  1. Sprayer Cleanout

  2. Sprayer Cleanout • Has always been important but even more so now. • “Hot” burndowntrts. because of Rs weeds. • Wide variety of crops and pesticides on a single farm. • GMO & Conv. side by side or on same farm. • Products sometimes active at very low rates. www.uaex.edu - search for “2170” in publications

  3. There are many places residues can remain in a sprayer • Tanks • Hoses • Filters & screens • Nozzles & nozzle bodies • Ends of the boom

  4. Tank-Cleaning Agents • Commercial tank cleaners – often label recommended. Good for water and oil soluble products. • Ammonia – effective at penetrating and loosening deposits/residues. Does not deactivate pesticides but can increase solubility. • Chlorine bleach – Sometimes recommended for tank cleanout. Can deactivate residues. Corrosive and hazardous when mixed with ammonia (includes some fertilizers). ALWAYS READ THE LABEL

  5. Tank cleaners can be hazardous ALWAYS READ THE LABEL

  6. Surfactants can act as unintentional cleaners: • Certain surfactants can be very effective at removing residues from tanks, hoses, and strainers. • Growers in Arkansas have had problems when switching from growth regulator herbicides (2,4-D, triclopyr, dicamba) to post emerge applications of other products in soybeans and cotton. The surfactant used in the post emerge application was probably the reason.

  7. Familiarize yourself with the potential problems for your crop & chemical combinations. Take the time to thoroughly clean your equipment when the potential for problems is high. Don’t find out too late that the sprayer should have been cleaned better.

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