All-terrain vehicles (ATV) equipped with spray tanks, electric pumps, and hand-held spray guns are well suited to the selective application of herbicidal leaf or stem sprays to noxious plants on rangeland. Units with 10- to 25-gallon spray tanks; a chemical resistant, 12-volt, 1.4-gallon/minute diaphragm pump; and a polypropylene handgun with a ConeJet 5500 X-8 adjustable cone nozzle (Spraying Systems Company) for leaf spray or ConeJet 5500 X-1 for stem spray are available from spray equipment manufacturers or suppliers. These units are effective for treating individual shrubs and can be rigged with hoses for three spray guns so that the ATV driver and a ground crew of two can treat a 40-foot swath. Booms or boomless nozzles can be attached to ATVs for weed spraying. ATVs are typically 4-wheel units but larger units with 6 and 8 wheels can carry larger spray tanks and accessories, see chapter on All-Terrain Vehicles.