Double Rigged Sprayer

Double rigged sprayer SPRAYING New Sprayers 10-6-22 A Missouri farmer double-rigged his spray boom to apply both broadleaf and grass-killing chemicals through two sets of nozzles on the same trip through the field, according to a recent report in the Missouri Ruralist magazine. Dwain Dunkmann, who rents land on an island in the middle of the Missouri River, needed to find a way to speed up spray work on the remote fields. He mounts two 200-gal. saddle tanks on his tractor to hold a Blazer-Basagran mix and a 300-gal. tank at the rear for Poast grass herbicide. The chemicals are applied through a double set of flat-fan nozzles strung on two lines across a 30-ft. spray boom. Dunkmann told the Ruralist that timing is critical when applying both grass and broadleaf herbicides in a single pass. He broadcasts the broadleaf chemical and spot sprays for grasses and saves about $2.50 per acre in time, fuel and machinery costs by making just one spray pass over fields, in addition to time saved on the 600 acres. The extra pump, valves, switches, hoses and nozzles to rig up the double sprayer cost about $500.

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