WASHINGTON PESTICIDE LAWS LATEST 2026 PRACTICE
EXAM QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔Wettable Powders - ✔✔dry, finely ground formulations containing from 25% to 80%
active ingredient; does not dissolve in water
✔✔F - ✔✔Flowables
✔✔Flowables - ✔✔finely ground solid particles combined with active ingredient and
suspended in a liquid carrier
✔✔Invert Emulsions - ✔✔contain water-soluble pesticides dispersed in oil carriers
✔✔WDG - ✔✔Water-Dispersable Granules
✔✔Water-Dispersable Granules - ✔✔Similar to wettable powders, except the active
ingredient is in a granular form rather than a powder, thus dustless
✔✔D - ✔✔Dusts
✔✔Dusts - ✔✔contain a low percentage of active ingredient (0.5% to 10%), plus a finely
ground inert substance such as talc, clay, nut hulls, or volcanic ash
✔✔G and P - ✔✔Granules and Pellets
✔✔Granules and Pellets - ✔✔dry, ready-to-use materials usually containing 2% to 15%
active ingredient
✔✔True - ✔✔Granules are often used to control soilborne pests
✔✔B - ✔✔Baits
✔✔Baits - ✔✔an active ingredient mixed with an edible substance or some other
attractant
✔✔Aerosols - ✔✔contain an active ingredient in solution and packaged in a pressurized
container
✔✔Fumigants - ✔✔pesticides that are active as gases
✔✔tank mix - ✔✔the mixture of pesticides in a spray tank
✔✔incompatible - ✔✔two or more materials that cannot be mixed or used together
without creating precipitates or losing their effectiveness
, ✔✔adjuvant - ✔✔a substance added to a pesticide to improve its effectiveness or safety
✔✔surfactants - ✔✔a component of many adjuvants that improves the spreading,
dispersing, and/or wetting properties of a pesticide mixture
✔✔Soluble - ✔✔What formulation dissolves in water
✔✔Clogged nozzles and screens - ✔✔What is a concern when handling an emulsifiable
concentrate pesticide
✔✔preharvest intervals - ✔✔days before harvest
✔✔preslaughter intervals - ✔✔grazing restrictions
✔✔Tolerance - ✔✔a regulation that establishes the maximum amount of pesticide
residue that may legally remain in or on a raw agricultural commodity at harvest or
slaughter
✔✔chemical name - ✔✔the complex name that identifies the chemical components and
structure of the pesticide
✔✔1-naphthyl, N-methyl, carbamate - ✔✔What is the chemical name of:
Sevin 50WP
Active Ingredient:
carbaryl (1-naphthyl N-methyl carbamate).......50%
✔✔Common name - ✔✔a name given to a pesticides active ingredient that is less
complex than the chemical name
✔✔carbaryl - ✔✔What is the common name of:
Sevin 50WP
Active Ingredient:
carbaryl (1-naphthyl N-methyl carbamate).......50%
✔✔CAUTION or no signal word - ✔✔What is the signal word for Class IV
✔✔CAUTION - ✔✔What is the signal word for Class III
✔✔WARNING/AVISO - ✔✔What is the signal word for Class II
✔✔DANGER/PELIGRO - ✔✔What is the signal word for Class I
✔✔PPE - ✔✔Personal Protective Equipment
EXAM QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔Wettable Powders - ✔✔dry, finely ground formulations containing from 25% to 80%
active ingredient; does not dissolve in water
✔✔F - ✔✔Flowables
✔✔Flowables - ✔✔finely ground solid particles combined with active ingredient and
suspended in a liquid carrier
✔✔Invert Emulsions - ✔✔contain water-soluble pesticides dispersed in oil carriers
✔✔WDG - ✔✔Water-Dispersable Granules
✔✔Water-Dispersable Granules - ✔✔Similar to wettable powders, except the active
ingredient is in a granular form rather than a powder, thus dustless
✔✔D - ✔✔Dusts
✔✔Dusts - ✔✔contain a low percentage of active ingredient (0.5% to 10%), plus a finely
ground inert substance such as talc, clay, nut hulls, or volcanic ash
✔✔G and P - ✔✔Granules and Pellets
✔✔Granules and Pellets - ✔✔dry, ready-to-use materials usually containing 2% to 15%
active ingredient
✔✔True - ✔✔Granules are often used to control soilborne pests
✔✔B - ✔✔Baits
✔✔Baits - ✔✔an active ingredient mixed with an edible substance or some other
attractant
✔✔Aerosols - ✔✔contain an active ingredient in solution and packaged in a pressurized
container
✔✔Fumigants - ✔✔pesticides that are active as gases
✔✔tank mix - ✔✔the mixture of pesticides in a spray tank
✔✔incompatible - ✔✔two or more materials that cannot be mixed or used together
without creating precipitates or losing their effectiveness
, ✔✔adjuvant - ✔✔a substance added to a pesticide to improve its effectiveness or safety
✔✔surfactants - ✔✔a component of many adjuvants that improves the spreading,
dispersing, and/or wetting properties of a pesticide mixture
✔✔Soluble - ✔✔What formulation dissolves in water
✔✔Clogged nozzles and screens - ✔✔What is a concern when handling an emulsifiable
concentrate pesticide
✔✔preharvest intervals - ✔✔days before harvest
✔✔preslaughter intervals - ✔✔grazing restrictions
✔✔Tolerance - ✔✔a regulation that establishes the maximum amount of pesticide
residue that may legally remain in or on a raw agricultural commodity at harvest or
slaughter
✔✔chemical name - ✔✔the complex name that identifies the chemical components and
structure of the pesticide
✔✔1-naphthyl, N-methyl, carbamate - ✔✔What is the chemical name of:
Sevin 50WP
Active Ingredient:
carbaryl (1-naphthyl N-methyl carbamate).......50%
✔✔Common name - ✔✔a name given to a pesticides active ingredient that is less
complex than the chemical name
✔✔carbaryl - ✔✔What is the common name of:
Sevin 50WP
Active Ingredient:
carbaryl (1-naphthyl N-methyl carbamate).......50%
✔✔CAUTION or no signal word - ✔✔What is the signal word for Class IV
✔✔CAUTION - ✔✔What is the signal word for Class III
✔✔WARNING/AVISO - ✔✔What is the signal word for Class II
✔✔DANGER/PELIGRO - ✔✔What is the signal word for Class I
✔✔PPE - ✔✔Personal Protective Equipment
