WASHINGTON PESTICIDE LAWS UPDATED EXAMS SCRIPT
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔Invert Emulsions - ✔✔Contain water-soluble pesticides dispersed in oil carriers.
They require a special emulsifier that allows the pesticide to be mixed with large
volumes of petroleum based carriers like fuel oil.
✔✔Water Dispersible Granules - ✔✔A granular form of pesticides that is dustless and
breaks apart in liquid.
✔✔Dusts - ✔✔Formulations contain a low % of active ingredient (0.5-10%), plus a finely
ground inert substance such as talc, clay, nut hulls, or volcanic ash. These are always
used dry.
✔✔Granules and Pellets - ✔✔Dry, ready-to-use materials usually containing from 2-
15% active ingredient. Most granules are prepared by applying the active ingredient as
a liquid to a coarse, porous, solid material such as clay or ground corn cobs. These are
often used to control soil-borne pests.
✔✔Baits - ✔✔This formulation has an active ingredient mixed with an edible substance
or some other attractant. Typically less than 5% active ingredient and attracts pests like
animals, insects, rodents, etc.
✔✔Aerosols - ✔✔Contain no active ingredient in solution (usually a petroleum distillate)
and packaged in a pressurized container.
✔✔Fumigants - ✔✔Are pesticides that are active as gases. These are often formulated
as liquids, either as volatile liquids or under pressure to become gases when released.
Others are solids that release gases under conditions of high humidity. (MOST
HAZARDOUS OF ALL PESTICIDES!)
✔✔Adjuvant - ✔✔A chemical added to a pesticide formulation or mixture to improve its
performance and safety.
✔✔Surfactant - ✔✔Are "surface active ingredients" and alter the dispersing, spreading,
and/or wetting properties of spray droplets.
✔✔Danger-Poison Peligro - ✔✔These words (along with skull and crossbones) appear
on all products that are highly toxic by any route of entry in the body. "Poison" indicates
the product can cause death at low rates.
✔✔Danger Peligro - ✔✔Products with this signal word can cause very severe eye
damage or skin irritation. These products are NOT lethal at low dosages.
, ✔✔Warning Aviso - ✔✔This word signals that the product is moderately toxic orally,
dermally, or through inhalation, or causes moderate skin/eye irritation.
✔✔Caution - ✔✔This word signals that the product is slightly toxic orally, dermally, or
through inhalation, or causes slight eye/skin irritation. It is the least dangerous out of all
signal words.
✔✔Exposure: 4 routes of Entry - ✔✔1) Skin/Dermal (most absorptive)
2) Lungs (inhalation)
3) Mouth (oral)
4) Eyes
✔✔Acute Toxicity - ✔✔Based on a single pesticide dosage and determined by:
exposing skin to chemical (dermal toxicity), permitting test animals to breathe vapors of
chemical (inhalation toxicity), and feeding chemical to test animals (oral toxicity)
✔✔Chronic Toxicity - ✔✔Determined by subjecting test animals to long-term exposure
of an active ingredient. Harmful effects that occur from small dosages over a long period
of time.
✔✔Workers - ✔✔Employees who do not handle any pesticide products or machinery
with residues
✔✔Handlers - ✔✔Employees who handle any pesticide products (mixers, loaders, and
applicators) or have high exposure potential (flaggers/equipment repair persons)
✔✔Arthropods - ✔✔A group of organisms that have jointed appendages, an
exoskeleton, bilateral symmetry, and reproduce sexually; insects, arachnids, millipedes
and cenitpedes, and crustaceans
✔✔Chewing mouthparts - ✔✔Have toothed mandibles that bite and tear food.
Examples include cockroaches, grass hoppers, ants, and beetles.
✔✔Piercing sucking mouthparts - ✔✔Long slender tube that penetrates plant or animal
tissues to suck fluid. Examples include true bugs, aphids, scales, mosquitoes, and
sucking lice.
✔✔Sponging mouthparts - ✔✔Have a tubular tongue like structure. Examples include
flies.
✔✔Siphoning mouthparts - ✔✔Are formed into a long tube for sucking nectar. Examples
include butterflies and moths.
✔✔Metamorphosis - ✔✔Change from young insect to adult
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔Invert Emulsions - ✔✔Contain water-soluble pesticides dispersed in oil carriers.
They require a special emulsifier that allows the pesticide to be mixed with large
volumes of petroleum based carriers like fuel oil.
✔✔Water Dispersible Granules - ✔✔A granular form of pesticides that is dustless and
breaks apart in liquid.
✔✔Dusts - ✔✔Formulations contain a low % of active ingredient (0.5-10%), plus a finely
ground inert substance such as talc, clay, nut hulls, or volcanic ash. These are always
used dry.
✔✔Granules and Pellets - ✔✔Dry, ready-to-use materials usually containing from 2-
15% active ingredient. Most granules are prepared by applying the active ingredient as
a liquid to a coarse, porous, solid material such as clay or ground corn cobs. These are
often used to control soil-borne pests.
✔✔Baits - ✔✔This formulation has an active ingredient mixed with an edible substance
or some other attractant. Typically less than 5% active ingredient and attracts pests like
animals, insects, rodents, etc.
✔✔Aerosols - ✔✔Contain no active ingredient in solution (usually a petroleum distillate)
and packaged in a pressurized container.
✔✔Fumigants - ✔✔Are pesticides that are active as gases. These are often formulated
as liquids, either as volatile liquids or under pressure to become gases when released.
Others are solids that release gases under conditions of high humidity. (MOST
HAZARDOUS OF ALL PESTICIDES!)
✔✔Adjuvant - ✔✔A chemical added to a pesticide formulation or mixture to improve its
performance and safety.
✔✔Surfactant - ✔✔Are "surface active ingredients" and alter the dispersing, spreading,
and/or wetting properties of spray droplets.
✔✔Danger-Poison Peligro - ✔✔These words (along with skull and crossbones) appear
on all products that are highly toxic by any route of entry in the body. "Poison" indicates
the product can cause death at low rates.
✔✔Danger Peligro - ✔✔Products with this signal word can cause very severe eye
damage or skin irritation. These products are NOT lethal at low dosages.
, ✔✔Warning Aviso - ✔✔This word signals that the product is moderately toxic orally,
dermally, or through inhalation, or causes moderate skin/eye irritation.
✔✔Caution - ✔✔This word signals that the product is slightly toxic orally, dermally, or
through inhalation, or causes slight eye/skin irritation. It is the least dangerous out of all
signal words.
✔✔Exposure: 4 routes of Entry - ✔✔1) Skin/Dermal (most absorptive)
2) Lungs (inhalation)
3) Mouth (oral)
4) Eyes
✔✔Acute Toxicity - ✔✔Based on a single pesticide dosage and determined by:
exposing skin to chemical (dermal toxicity), permitting test animals to breathe vapors of
chemical (inhalation toxicity), and feeding chemical to test animals (oral toxicity)
✔✔Chronic Toxicity - ✔✔Determined by subjecting test animals to long-term exposure
of an active ingredient. Harmful effects that occur from small dosages over a long period
of time.
✔✔Workers - ✔✔Employees who do not handle any pesticide products or machinery
with residues
✔✔Handlers - ✔✔Employees who handle any pesticide products (mixers, loaders, and
applicators) or have high exposure potential (flaggers/equipment repair persons)
✔✔Arthropods - ✔✔A group of organisms that have jointed appendages, an
exoskeleton, bilateral symmetry, and reproduce sexually; insects, arachnids, millipedes
and cenitpedes, and crustaceans
✔✔Chewing mouthparts - ✔✔Have toothed mandibles that bite and tear food.
Examples include cockroaches, grass hoppers, ants, and beetles.
✔✔Piercing sucking mouthparts - ✔✔Long slender tube that penetrates plant or animal
tissues to suck fluid. Examples include true bugs, aphids, scales, mosquitoes, and
sucking lice.
✔✔Sponging mouthparts - ✔✔Have a tubular tongue like structure. Examples include
flies.
✔✔Siphoning mouthparts - ✔✔Are formed into a long tube for sucking nectar. Examples
include butterflies and moths.
✔✔Metamorphosis - ✔✔Change from young insect to adult
