Idaho Pesticide Applicator Terms 2025/26 Ultimate
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Absorption - The movement of a chemical into plants, animals (including humans),
microorganisms or soil
PRECIPITATE - a solid substance that forms in a fiquid and settles to the bottom of a
container, a material that no longer remains in suspension.
ACARICIDE - A pesticide used to control mites and ticks.
PREMIX - a pesticide product formulated with more than one active ingredient
ACTIVATED CHARCOAL - a substance which when finely ground, absorbs liquids and gases
PRIVATE (APPLICATOR) - a pesticide applicator that applies Restricted Use Pesticides
(RUP) to land be owns, rents/leases, or has managerial control for the purpose of growing a
commodity. Also refers to an applicator that in employed by one who owns, rents/leases, or has
managerial control over land used for agricultural production
PROFESSIONAL (APPLICATOR) - a pesticide applicator that applies pesticides to land they
do not own, rent/lease or have managerial control for monetary compensation. Also refers to
an applicator that promotes, presents or advertises themselves or their business as pesticide
applicators.
ACTIVATOR - an adjuvant added to a pesticide to increase its toxicity
PROPELLANT - the inert ingredient in self pressurized products that forces the active
ingredient from the container. Propellants are often used in over-the counter flying insect
control pesticides.
ACUTE TOXICITY - The capacity of a pesticide to cause injury from a single exposure. LD50
and LC50 are common indicators of the degree of acute toxicity.
RCRA-The Resource Conservation and Recovery Act. - The federal law regulating the
transport, storage, treatment and disposal of hazardous wastes.
Adjuvant - A substance added to a pesticide to improve its effectiveness or safety, also
called an additive. Examples: Penetrants, spreader stickers and wetting agents
REENTRY INTERVAL - The length of time following an application of a pesticide when a
person is required to wear protective clothing and equipment in a treated field.
, ADULTERATED PESTICIDE - A pesticide that does not conform to the professed standard
or quality documented on its label or labeling.
AEROSOL - A pesticide that is sprayed in very fine to extremely fine droplets. This is
intended to keep the pesticide suspended in the air. Mainly used for flying insect control
ANNUAL - A plant that completes its life cycle in one year.
ANTAGONISM - the reduction of pesticide activity when two or more different pesticides
are mixed together.
antibiotic - Chemical produced by a microorganism that is toxic to other microorganisms.
Examples: streptomycin, cycloheximide and penicillin.
ANTICOAGULANT - a chemical that prevents norinal blood clotting: the active ingredient
in some rodenticides.
ANTI-FOAMING AGENTS - adjuvant that is added to a tank mix to prevent the spraymix
from foaming in the tank.
ANTI-SIPHONING DEVICE - attachment designed to prevent backflow of a pesticide mix
from a spray or holding tank into a water source.
ANTI-TRANSPIRANT - chemical applied to a plant to reduce the rate or transpiration or
water loss
ARACHNID - a wingless arthropod with two body regions and four pairs of jointed legs.
Ex: Spiders, ticks and mites
ARTHROPOD - an invertebrate animal characterized by a jointed body and limbs, and
usually a hard body covering that is molted at intervals. Ex: Insects, mites and crayfish
ATROPINE - An antidote used to treat organophosphate and carbamate poison-ing.
Avicide - a chemical umed to kill or repel birds
BAND APPLICATION - application of a pesticide or other material in or beside a crop now
rather than over the entire field area
BASAL APPLICATION - Application to plant steins or trunks at or just above the ground
line.
BIENNIAL - A plant that completes its life cycle within two years
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Absorption - The movement of a chemical into plants, animals (including humans),
microorganisms or soil
PRECIPITATE - a solid substance that forms in a fiquid and settles to the bottom of a
container, a material that no longer remains in suspension.
ACARICIDE - A pesticide used to control mites and ticks.
PREMIX - a pesticide product formulated with more than one active ingredient
ACTIVATED CHARCOAL - a substance which when finely ground, absorbs liquids and gases
PRIVATE (APPLICATOR) - a pesticide applicator that applies Restricted Use Pesticides
(RUP) to land be owns, rents/leases, or has managerial control for the purpose of growing a
commodity. Also refers to an applicator that in employed by one who owns, rents/leases, or has
managerial control over land used for agricultural production
PROFESSIONAL (APPLICATOR) - a pesticide applicator that applies pesticides to land they
do not own, rent/lease or have managerial control for monetary compensation. Also refers to
an applicator that promotes, presents or advertises themselves or their business as pesticide
applicators.
ACTIVATOR - an adjuvant added to a pesticide to increase its toxicity
PROPELLANT - the inert ingredient in self pressurized products that forces the active
ingredient from the container. Propellants are often used in over-the counter flying insect
control pesticides.
ACUTE TOXICITY - The capacity of a pesticide to cause injury from a single exposure. LD50
and LC50 are common indicators of the degree of acute toxicity.
RCRA-The Resource Conservation and Recovery Act. - The federal law regulating the
transport, storage, treatment and disposal of hazardous wastes.
Adjuvant - A substance added to a pesticide to improve its effectiveness or safety, also
called an additive. Examples: Penetrants, spreader stickers and wetting agents
REENTRY INTERVAL - The length of time following an application of a pesticide when a
person is required to wear protective clothing and equipment in a treated field.
, ADULTERATED PESTICIDE - A pesticide that does not conform to the professed standard
or quality documented on its label or labeling.
AEROSOL - A pesticide that is sprayed in very fine to extremely fine droplets. This is
intended to keep the pesticide suspended in the air. Mainly used for flying insect control
ANNUAL - A plant that completes its life cycle in one year.
ANTAGONISM - the reduction of pesticide activity when two or more different pesticides
are mixed together.
antibiotic - Chemical produced by a microorganism that is toxic to other microorganisms.
Examples: streptomycin, cycloheximide and penicillin.
ANTICOAGULANT - a chemical that prevents norinal blood clotting: the active ingredient
in some rodenticides.
ANTI-FOAMING AGENTS - adjuvant that is added to a tank mix to prevent the spraymix
from foaming in the tank.
ANTI-SIPHONING DEVICE - attachment designed to prevent backflow of a pesticide mix
from a spray or holding tank into a water source.
ANTI-TRANSPIRANT - chemical applied to a plant to reduce the rate or transpiration or
water loss
ARACHNID - a wingless arthropod with two body regions and four pairs of jointed legs.
Ex: Spiders, ticks and mites
ARTHROPOD - an invertebrate animal characterized by a jointed body and limbs, and
usually a hard body covering that is molted at intervals. Ex: Insects, mites and crayfish
ATROPINE - An antidote used to treat organophosphate and carbamate poison-ing.
Avicide - a chemical umed to kill or repel birds
BAND APPLICATION - application of a pesticide or other material in or beside a crop now
rather than over the entire field area
BASAL APPLICATION - Application to plant steins or trunks at or just above the ground
line.
BIENNIAL - A plant that completes its life cycle within two years
