Best Sprayers for Weeds & Pasture

Sprayer Types Compared

Match the format to how much ground you cover and how you move around the property.

Torn between walking a backpack and towing a tank? See the full backpack vs ATV sprayer comparison.

Sizing a Sprayer to Your Acreage

Tank size decides how often you stop to refill. Match it to the area you treat in one session, and remember that broadcast spraying uses roughly 10 to 20 gallons of solution per acre, so a 15-gallon tank covers on the order of one acre per fill.

Coverage varies with your spray volume and target. Calibrate (below) to know your real gallons per acre.

Our Sprayer Picks

Backpack, wheeled cart, and ATV/tow-behind sprayers for spot work up to full pasture, matched to the sizing above.

Our Sprayer Picks

Backpack, wheeled cart, and ATV/tow-behind sprayers for spot work up to full pasture.

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3.5

VEVOR ATV/UTV Spot Sprayer (15.9 Gal, 12V Boom)

A 15.9-gallon ATV/UTV-mounted sprayer with a 12V pump, 1.9 GPM flow, adjustable 0 to 72 PSI, and a nozzle boom. The pick for covering pasture, food plots, and fence lines fast.

$159.90

Check Price at VEVOR

4.2

VEVOR Battery Sprayer on Wheels (15 Gal)

A 15-gallon battery-powered cart sprayer with 8 nozzles, 2 wands, and 0 to 90 PSI. Roll it along beds, driveways, and fence lines with no backpack strain.

$230.27

Check Price at VEVOR

4.7

VEVOR Gas Backpack Sprayer (6.5 Gal, 26.5cc)

A 26.5cc gas backpack sprayer with a 6.5-gallon tank and 24-inch wand. The highest-rated pick here, built for brush, tall weeds, and large-area coverage.

$219.90

Check Price at VEVOR

4.4

VEVOR Battery Backpack Sprayer (4 Gal)

A 4-gallon battery backpack with 2 wands, 8 nozzles, 0 to 90 PSI, and a 4-hour runtime. The best all-around pick for spot-spraying weeds around a property.

$119.90

Check Price at VEVOR

4.2

VEVOR Battery Cart Sprayer (13.1 Gal)

A 13.1-gallon wheeled battery sprayer with 5 nozzles, a 98 ft hose, and 3 to 6 hours of spray time. A capable mid-size option between a backpack and an ATV rig.

$186.90

Check Price at VEVOR

Calibrate Your Sprayer (5 Minutes That Saves Money)

Calibration is the step almost everyone skips, and it is why weeds survive or plants get burned. It tells you how many gallons per acre you actually apply so you can mix the label rate correctly. Do it with clean water first, then match your chemical mix.

1. 1

   Fill the tank with clean water and set your normal pressure and, for a boom, your normal speed.

2. 2

   Mark off a test area you can measure, for a backpack, a known small plot; for a boom, a set distance at your spray width.

3. 3

   Spray the test area exactly as you would for real, keeping speed and pressure steady.

4. 4

   Measure how much water you used to refill the tank back to the start level.

5. 5

   Scale that water volume up to a full acre (43,560 sq ft) to get your gallons per acre.

6. 6

   Adjust speed, pressure, or nozzle size until you land in the label's target range, then mix chemical to match.

Nozzles & Pressure

The nozzle shapes the spray and controls drift as much as pressure does. Pick the pattern to the job.

Higher pressure makes finer droplets that carry farther and drift more. Use the lowest pressure that gives good coverage, and switch to coarse, drift-reduction nozzles when there is any breeze or you are working near a garden or crop.

When to Spray (Timing by Weed Type)

Timing decides whether a spray works. Hit weeds when they are actively growing and not stressed, never when they are dormant, drought-stressed, or about to be rained on.

General guidance. Your product label and regional extension office set the specifics for your target weed, grass, and climate.

How to Spray Herbicide Safely and Effectively

The label is the law and the instruction manual. These steps keep you safe and make the application actually work.

1. 1

   Read the herbicide label fully. It sets the legal mix rate, target weeds, PPE, and re-entry and grazing intervals.

2. 2

   Wear the PPE the label requires: at minimum gloves and eye protection, often long sleeves and a respirator.

3. 3

   Calibrate the sprayer with clean water so you know your gallons per acre before adding chemical.

4. 4

   Mix only what you will use, at the exact label rate. More chemical does not kill weeds better; it wastes product and risks damage.

5. 5

   Spray on a calm, dry day. Wind causes drift onto desirable plants; rain within the label's window washes it off.

6. 6

   Cover leaves evenly to wet but not runoff. For broadcast work, keep a steady speed so the rate stays consistent.

7. 7

   Triple-rinse the tank, hoses, and nozzles after use, and store chemicals locked away from children, animals, and feed.

Spraying Mistakes to Avoid

1. 1

   Spraying in wind

   Drift carries herbicide onto gardens, crops, and neighbors. Wait for a calm day or use drift-reduction nozzles.

2. 2

   Skipping calibration

   Guessing your gallons per acre means the mix is wrong, so weeds survive or plants get burned. Calibrate first.

3. 3

   Mixing too strong

   Over-concentrating wastes chemical and can harm soil and desirable plants without killing weeds any faster.

4. 4

   Spraying at the wrong time

   Dormant, drought-stressed, or pre-rain weeds shrug off herbicide. Spray during active growth on a dry day.

5. 5

   Skipping PPE

   Concentrates are hazardous. Gloves and eye protection are the minimum; follow the label.

6. 6

   Not rinsing the tank

   Leftover herbicide can damage the next plants you spray and corrode the sprayer. Triple-rinse every time.

7. 7

   Ignoring grazing intervals

   Livestock must stay off treated pasture for the interval on the label. Read and follow it exactly.

Frequently Asked Questions