AK Pesticide Applicator key terms

A pesticide that may cause harm to people or the environment and may be sold or used only by certified applicators or people under their direct supervision. The label states this classification.

A person who has passed the required competency examination and holds a valid credential allowing legal purchase and use of restricted-use pesticides, or supervision of noncertified handlers.

A requirement that a certified applicator be physically present and able to take immediate action while a noncertified person uses a restricted-use pesticide, unless the label allows otherwise.

The federally approved printed information attached to a pesticide container that carries the directions for use, safety warnings, and legal restrictions. Using a product inconsistent with the label is a violation.

A single word on the label, such as DANGER, WARNING, or CAUTION, that ranks the acute toxicity hazard of a product and tells the user how serious the risk is.

A standardized document from the manufacturer that describes a product's hazards, first aid, handling, storage, and spill response. It supports but does not replace the pesticide label directions.

Label sections that warn about hazards to people, domestic animals, wildlife, and the environment, and that specify required protective equipment and reentry or restricted-entry intervals.

The harm caused by a single short-term exposure to a pesticide, usually measured by how much dose is needed to cause illness or death in test animals.

Health effects that develop slowly after repeated or long-term low-level exposure, such as organ damage, cancer, or reproductive harm, rather than after one incident.

The dose of a substance that kills half of a test animal population, usually expressed in milligrams per kilogram of body weight. A lower value means greater acute toxicity.

The blocking of an enzyme that controls nerve signals, caused by organophosphate and carbamate insecticides. It can produce sweating, blurred vision, vomiting, and weakness in exposed workers.

Movement of a pesticide through the skin into the body. It is often the largest route of applicator exposure, especially with hands, forearms, and the head and neck.

The way a pesticide enters the body: through the skin (dermal), by breathing (inhalation), by swallowing (oral), or by contact with the eyes.

Clothing and gear such as gloves, coveralls, boots, eye protection, and respirators worn to reduce contact with pesticides. The label specifies the minimum required items.

Gloves made of materials such as nitrile or butyl rubber that resist pesticide movement through the material, worn with cuffs outside the sleeve to keep drips off the skin.

A fitted facepiece with cartridges or filters that removes pesticide vapors, dusts, or mists from inhaled air. It requires fit testing, medical clearance, and cartridge replacement per label directions.

The period after an application during which people may not enter a treated area without required protective equipment, stated on the label to prevent harmful exposure.

A person who mixes, loads, applies, transports, or disposes of pesticides, or who cleans equipment or container surfaces that hold pesticide residue.

Combining a pesticide concentrate with water or other carrier and filling the spray tank. These tasks cause the highest exposure risk because concentrated product is handled.

A device or air gap that stops pesticide mix from being pulled backward into a well, hydrant, or public water supply while a tank is being filled.

A container cleaning method: fill the empty container about one-quarter full, cap it, shake for at least 30 seconds, and pour the rinse water into the spray tank, repeated three times.

Adjusting and verifying application equipment so it delivers the intended amount of product over a measured area, confirmed by measuring output, speed, and swath width.

The amount of pesticide product or active ingredient applied per unit area, such as ounces per 1,000 square feet or pounds per acre, as set by the label.

The tip on spray equipment that breaks liquid into droplets and sets the spray pattern and output. Worn or wrong nozzles cause uneven coverage and misapplication.

Movement of pesticide droplets, dust, or vapor off the target area by wind or air currents, which can injure crops, people, and wildlife and is affected by nozzle choice and weather.

A decision process that combines pest identification, monitoring, thresholds, and cultural, biological, and chemical controls so pesticides are used only when needed.

The pest population level at which the damage likely to occur justifies the cost of a control treatment, used to time applications in an IPM program.

Confirming the exact species of insect, weed, disease, or other organism present, so that the correct control method and product are selected and ineffective treatments are avoided.

The inherited ability of a pest population to survive a pesticide dose that once controlled it, often developing when the same mode of action is used repeatedly.

The way a pesticide disrupts a pest's biology, such as blocking a nerve signal or a plant enzyme. Rotating modes of action helps delay resistance.

Downward movement of a pesticide through soil into groundwater, influenced by the product's water solubility, soil texture, and rainfall or irrigation amount.

Movement of pesticide over the soil surface with rain or irrigation water into ditches, streams, and ponds, often carrying product attached to soil particles.

An untreated strip of land between a treated area and a sensitive site such as a stream, house, or school, kept to reduce drift and runoff impacts.

Practices that keep pesticides out of wells, streams, and groundwater, including mixing away from water, using backflow prevention, and following setback distances.

The required handling of empty pesticide containers: rinse them properly, puncture or crush them as directed, and take them to an approved recycling or disposal program rather than household trash.

Keeping pesticides in a locked, ventilated area away from food, feed, and water, with containers upright, labeled, and protected from freezing, flood, and unauthorized access.

A stocked set of absorbent material, containment tools, bags, and protective equipment kept available so a pesticide spill can be contained and cleaned up quickly.

The steps taken after a pesticide release: protect people, stop the source if safe, contain the material, absorb and clean it up, and report the spill as required.