Glossary Flashcards
The movement of a chemical into plants, animals (including humans), microorganisms or soil.
Absorption
A pesticide used to control mites and ticks. This is synonymous with miticide.
Acaricide
Charcoal, which when finely ground, adsorbs liquids and gases.
Activated charcoal
An adjuvant added to a pesticide to increase its toxicity.
Activator
The chemical or chemicals in a product responsible for pesticidal activity.
Active ingredient
The capacity of a pesticide to cause injury from a single exposure. LD50 and LC50 are common indicators of the degree of acute toxicity.
Acute toxicity
The property of a substance to stick to a given surface.
Adherence
A substance added to a pesticide to improve its effectiveness or safety, also called an additive. Examples: penetrants, spreader stickers and wetting agents.
Adjuvant
The process by which chemicals are held or bound to a surface by physical or chemical attraction. Clay and high organic souls tend to adsorb pesticides.
Adsorption
A pesticide that does not conform to the professed standard or quality documented on its label or labeling.
Adulterated pesticide
A pesticide that is sprayed in a very fine to extremely fine droplets. This is intended to keep the pesticide suspended in the air. Mainly used for flying insect control.
Aerosol
Process of stirring or mixing in a sprayer.
Agitation
A respirator that removes harmful materials and/or vapors through a filter or series of filters prior to breathing. Negative pressure respirators rely on the users lungs to pull air through the filters. Positive pressure respirators use a blower to force air through filters prior to breathing.
Air-purifying respirator
A specialized liquid sprayer that uses air to create very fine, high velocity spray droplets directed towards the target. Often used in orchards and vineyards.
Air-blast sprayer
A pesticide used to kill or inhibit algae.
Algicide
A plant that completes its life cycle in one year.
Annual
The reduction of pesticide activity when two or more different pesticides are mixed together.
Antagonism
Chemical produced by a microorganism that is toxic to other microorganisms. Examples: streptomycin, cycloheximide and penicillin.
Antibiotic
A chemical that prevents normal blood clotting: the active ingredient in some rodenticides.
Anticoagulant
A practical treatment used to counteract the effects of pesticide poisoning or some other poison in the body.
Antidote
Adjuvant that is added to a tank mix to prevent the spray mix from foaming in the tank.
Anti-foaming agents
An attachment designed to prevent backflow of a pesticide mix from a spray or holding tank into a water source.
Anti-siphoning device
A chemical applied to a plant to reduce the rate of transpiration or water loss.
Anti-transpirant
A wingless arthropod with two body regions and four pairs of jointed legs. Spiders, ticks and mites are arachnids.
Arachnid
