A good large sprayer for weeds depends on area size, terrain, and whether you need tow-behind, backpack, or handheld, but popular options include several types. For large properties of 1 acre or more, a tow-behind or ATV sprayer of 25 to 60 gallons is ideal, such as NorthStar 21 to 31 gallon tow-behind sprayer with boom and wand, which attaches to riding mower or ATV and covers large areas quickly. Chapin and Master Manufacturing make good 25-gallon spot and broadcast sprayers with adjustable nozzles and pumps. For even larger farms, a 3-point hitch sprayer of 55 to 150 gallons that attaches to a tractor, like Fimco or Workhorse, is excellent for fields and pastures with boom coverage of 10 to 20 feet. For smaller large yards of half acre, a 4-gallon backpack sprayer like Chapin 4-gallon or Solo 425 is good for targeted weed spraying without vehicle. Features to look for include 12-volt pump for consistent pressure, adjustable boom and wand for both broadcast and spot spraying, durable polyethylene tank, pressure regulator, and chemical-resistant hoses. Battery-powered sprayers reduce manual pumping. For weed control, choose a sprayer with fan nozzles for even coverage and consider adding surfactant. Always calibrate sprayer for correct application rate.
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