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Sprayer Glossary

Agitation System

A mechanical or hydraulic method used to keep spray mixtures evenly mixed inside the tank during application.

Application Consistency

The ability to maintain uniform spray coverage, pressure, and treatment quality throughout an entire job.

Application Rate

The amount of product applied to a target area during spraying. Application rate depends on flow rate, pressure, nozzle type, spray width, and operator speed.

Application Window

The environmental and operational conditions considered appropriate for effective spraying, including temperature, wind, humidity, and timing.

Backpack Rig

A complete backpack spraying setup including the tank, pump system, hose, spray gun, and nozzle configuration used for mobile application work.

Backpack Sprayer

A portable sprayer carried on the operator’s back that uses manual, battery-powered, or motorized pressure systems for mobile spraying applications.

Bare Ground Application

A weed control strategy designed to prevent vegetation growth entirely in areas such as gravel lots, industrial yards, storage sites, and utility zones.

Barrier Application

A treatment strategy designed to create a protective zone that pests must cross before entering a structure or target area.

Boomless Spraying

A spray system that distributes liquid without a fixed spray boom, often using handheld or specialized nozzle systems for flexibility and mobility.

Broadcast Application

A wide-area spraying method designed to cover large surfaces uniformly rather than targeting specific spots or edges.

Broadcast Drift

Off-target movement that occurs during wide-area spray applications because of wind, pressure, droplet size, or poor nozzle selection.

Calibration

The process of measuring and adjusting a sprayer to ensure the correct amount of product is applied to the target area.

Chemical Resistance

The ability of sprayer materials, seals, hoses, and components to withstand exposure to pesticides, herbicides, solvents, and other chemicals.

Commercial Vegetation Management

Large-scale weed and brush control operations performed for municipalities, utilities, industrial properties, transportation corridors, and commercial sites.

Cone Nozzle

A nozzle that produces a circular or cone-shaped spray pattern often used for insecticide applications requiring broader droplet distribution.

Contact Insecticide

An insecticide that affects pests immediately after direct exposure or contact with the treated surface.

Continuous Pressure System

A spraying system designed to maintain steady pressure during application instead of fluctuating as the operator sprays.

Coverage Overlap

The amount of spray pattern overlap between passes during application to ensure complete and consistent coverage.

Coverage Uniformity

The consistency of spray distribution across the target surface during application.

Crack and Crevice Application

A precise pest control treatment method used inside narrow openings, gaps, joints, corners, and hidden spaces where insects commonly hide or travel.

Directed Spray Application

A spraying method where the operator intentionally aims the spray at a precise target area instead of broadly covering the surface.

Drift

The movement of spray droplets away from the intended target area during or after application. Drift can reduce effectiveness and increase off-target exposure.

Drift Reduction

Techniques and equipment adjustments used to reduce off-target spray movement during application.

Droplet Size

The size of the liquid droplets produced by the nozzle during spraying. Droplet size affects coverage, drift potential, and application accuracy.

Dual-Trigger Sprayer

A sprayer system that uses two triggers and two spray outlets so the operator can switch between two spray patterns without changing nozzles or adjusting one active output.

Edge Control Spraying

A spraying method focused on narrow transitions between surfaces such as pavement edges, curbs, sidewalks, gravel lines, and landscape borders.

Extension Wand

An extended spray attachment used to increase reach for high surfaces, fence lines, trees, soffits, or difficult-to-access areas.

Exterior Barrier Treatment

A perimeter-focused pest control strategy designed to reduce pest entry by applying product around the outside of a structure.

Exterior Web Treatment

A pest control spraying method used to remove or prevent spider webs, wasp nests, and insect activity around eaves, soffits, corners, and upper exterior surfaces.

Fan Spray

A spray pattern that distributes liquid in a flat, wide shape for broader surface coverage and perimeter applications.

Fence Line Spraying

A targeted vegetation control method used along fences, barriers, and property edges to prevent weed overgrowth.

Flat Fan Nozzle

A nozzle that creates a flat, wide spray pattern commonly used for perimeter spraying and broad surface coverage.

Flow Rate

The amount of liquid that exits the nozzle over a specific period of time, usually measured in gallons per minute (GPM). Flow rate affects application speed and coverage.

Foundation Band Treatment

A perimeter spray application applied in a horizontal band around the base of a structure for pest prevention.

High-Reach Application

A spraying method used to treat elevated targets such as eaves, soffits, upper siding, trees, signs, and overhead vegetation.

Hose Drag

The pulling resistance created by the sprayer hose during movement, which can affect operator fatigue and spray consistency.

Hose Management

The handling and positioning of spray hoses during application to reduce drag, tangling, fatigue, and application inconsistency.

Hose Reel System

A mounted hose storage and deployment system commonly used on truck, trailer, and skid sprayers for commercial applications.

Lawn Care Spraying

A broad category of liquid applications used for weed control, fertilization, insect control, and turf management in residential and commercial landscapes.

Nozzle Type

The style and design of the nozzle that controls how liquid is distributed onto the target surface. Different nozzle types create different spray patterns and droplet sizes.

NPT Fitting

A threaded pipe fitting standard commonly used in sprayer plumbing systems and commercial spray equipment connections.

Ornamental Protection

Application practices designed to avoid overspray or chemical damage near decorative plants, shrubs, flowers, and landscaped areas.

Overspray

Spray that lands outside the intended target area, often caused by poor control, drift, excessive pressure, or incorrect spray pattern selection.

Perimeter Treatment

A pest control application method focused around the exterior foundation, entry points, windows, doors, and edges of a structure to create a protective treatment barrier.

Pin Stream

A narrow, concentrated spray stream used for precision placement, crack and crevice work, and targeted spot application.

Pressure Drop

A reduction in spray pressure caused by hose length, restrictions, leaks, weak pumps, or system inefficiencies.

Product Waste

Chemical or liquid lost through overspray, drift, runoff, leakage, or inefficient application methods.

Pump Sprayer

A sprayer that requires manual pumping to build pressure before liquid can be sprayed through the nozzle.

Residual Application

An application designed to leave behind active product after spraying so the treatment continues working over time.

Residual Insecticide

An insecticide formulated to remain effective on treated surfaces for an extended period after application.

Right-of-Way Spraying

A vegetation management application method used along roadsides, utilities, fence lines, railways, and easements to control unwanted plant growth.

Roll-Over Nozzle

A nozzle system that allows operators to manually rotate between multiple spray tips during application.

Route Efficiency

The ability of a pest control technician or applicator to complete service stops quickly while maintaining application quality and consistency.

Service Route

A scheduled sequence of customer locations completed by a pest control, lawn care, or vegetation management technician during daily operations.

Skid Sprayer

A commercial spraying system mounted on a skid frame designed for trucks, UTVs, trailers, or utility vehicles.

Spot Treatment

A targeted spraying method focused on isolated areas where pests or weeds are actively present rather than treating the entire surface.

Spot Weed Control

A targeted herbicide application used to treat isolated weed patches without spraying the surrounding area.

Spray Angle

The width and shape of the spray pattern as it exits the nozzle, often measured in degrees.

Spray Coverage

The amount and consistency of treated surface area reached during spraying. Proper coverage helps improve application quality and reduce missed areas.

Spray Pattern

The shape of the spray as it leaves the nozzle, such as fan, cone, mist, or stream. Spray pattern determines coverage width and application precision.

Spray Pressure

The force that moves liquid through the sprayer system and out through the nozzle. Spray pressure affects reach, droplet behavior, spray pattern, and application control.

Structural Entry Point

An opening or gap in a building where pests commonly enter, including cracks, vents, weep holes, utility penetrations, and door thresholds.

Surface Runoff

Excess liquid that flows away from the target surface because too much product was applied or absorption capacity was exceeded.

Tank Mix

A combination of multiple products mixed together inside the sprayer tank for simultaneous application.

Target Deposition

The amount of spray material that successfully lands and remains on the intended target surface during application.

Target Surface

The intended area or object receiving the spray application during treatment.

Technician Fatigue

Physical strain and exhaustion experienced during spraying work due to repetitive movement, equipment weight, hose resistance, or poor ergonomics.

Technician Workflow

The physical movement and spraying process followed by an operator during application work.

Treatment Band

The width of the spray application area during perimeter or barrier treatment work.

Trigger Fatigue

Hand and wrist strain caused by prolonged trigger use during commercial spraying operations.

Trigger Valve

The control mechanism inside a spray gun that starts and stops liquid flow when the operator squeezes the trigger.

Turf Application

The process of applying herbicides, fertilizers, or pesticides to lawns, athletic fields, commercial turf, or maintained grass areas.

Turf Burn

Visible turf damage caused by improper chemical application, excessive concentration, or incorrect spray coverage.

Underspray

An insufficient amount of material reaching the target area, often resulting in weak coverage or incomplete treatment.

Utility Corridor Treatment

A spraying process focused around power lines, substations, pipelines, and utility access areas to maintain safe and clear infrastructure zones.

Vegetation Edge Treatment

A controlled spray application along the edges of landscaped areas, turf lines, fence rows, or roadside vegetation.

Vegetation Management

The control or treatment of weeds, brush, grass, or unwanted plant growth in landscapes, roadsides, utilities, and commercial properties.

Viton O-Ring

A chemical-resistant sealing component commonly used in commercial sprayers because of its durability and compatibility with harsh chemicals.

Wand

The handheld extension connected to the hose and spray gun that directs spray toward the target area.

Weep Hole Treatment

A pest control application technique focused around masonry drainage openings where insects may travel or nest.