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Planting, Seeding & Spraying EquipmentSpot Spraying Equipment
Spot spraying treats only the weeds that need it, which can save product and spare the grass around them. The right rig keeps the job quick and the overspray low.
Key points
- Spot spraying fits scattered weeds, fence lines and small patches.
- Backpacks, ATV tanks and truck skids each suit a different scale of work.
- Overspray is the main risk, so control pressure, tip choice and wind.
- Calibrate by checking real output over a known area, and recheck each season.
- Respect the vehicle's capacity when carrying a tank on an ATV or UTV.
What is spot spraying and when does it make sense?
Spot spraying means applying product to individual plants or small patches instead of covering a whole field. It fits scattered thistle in a pasture, brush along a fence line, weeds in a gravel lane or patches of invasive plants on a wooded edge.
It makes less sense when weeds are spread across the whole field. Then a boom or broadcast method gives more even coverage. The label tells you which application methods are allowed for each product, so check it before you pick a method.
What equipment is used for spot spraying?
The simplest tools are backpack sprayers and handheld pump bottles. Next up are small tanks mounted on an ATV or UTV, fed by a small electric pump and a hose reel with a handgun or wand. Skid units sit in a truck bed or on a trailer for longer reach and more tank volume.
Some operations use camera or sensor-based systems that switch nozzles on over green plants. The technology changes quickly, so ask dealers and extension specialists what is available, what it can detect and what it cannot, before spending money.
- Backpack sprayer: small patches and rough ground
- ATV or UTV tank with a hose reel: pastures and long fence lines
- Truck or trailer skid unit: larger tanks, longer jobs
- Sensor-based systems: ask about detection limits and support
How do you choose a nozzle or gun for spot work?
Handguns and wands often accept adjustable tips that go from a narrow stream to a wide cone. A stream reaches farther but is harder to control for drift and can splash. A wider pattern covers more but may overspray nearby plants.
Where the label calls for a particular droplet size or pattern, follow it. Keep the tip close to the target, hold a steady pace and avoid spraying uphill into wind. A flat fan tip with a defined edge often gives more predictable results around desirable plants than a cone.
How do you avoid overspray and damage to good plants?
Overspray is the main complaint with spot work. The operator is close to the plants, so it feels safe, but wind, a high-pressure setting or a sweeping wrist can send product onto grass, garden plants or a neighbor's fence line.
Consider a shield or spray hood on a wand for work beside desirable plants. Use a dye or marker approved for use with your product if the label allows it, so you can see where you have been and avoid double treating. Skip days with gusty wind.
- Lower pressure when working close to target plants
- Spray when wind is light and moving away from sensitive areas
- Use a shield near gardens and desirable plants
- Mark treated spots if the label allows a marker
How do you calibrate a spot sprayer?
With no boom and no fixed speed, calibration takes a different approach. Many extension offices describe a method based on measuring how much liquid you use over a measured area, then adjusting your walking pace and tip to match the label. Practice with plain water on a known patch first.
Hand pump units, electric pumps and regulators all drift out of tune as parts wear. Re-check at the start of every season and after you replace a tip, pump or hose.
What safety steps matter for ATV and UTV mounted rigs?
Tank weight changes how an ATV handles, especially on slopes, and sloshing liquid shifts the center of gravity. Keep the tank within the vehicle's rated capacity, secure it so it cannot move and follow the vehicle manufacturer's guidance on speed and slopes. Wear a helmet when the manual says to, and never carry passengers on a vehicle not built for them.
Hoses and wiring should be routed away from moving parts. Pressurized hoses can fail, so inspect them before each use and replace damaged ones. For chemical handling, wear the protective equipment the label lists.
When is it worth buying a bigger system?
If you spend many hours a season spot spraying and your backpack tires you out, a small ATV or truck unit may pay back in time saved. If you spray a few patches a year, a good backpack sprayer is plenty. Applicator licensing rules vary by state, so confirm what you need before buying or applying certain products.
Sources and further reading
- Oklahoma State University Extension
- Texas A&M AgriLife Extension
- University of Missouri Extension
- Farm Safety Association / Farm Safety Network
Organization homepages are linked so you can search them for current guidance on this topic.