WASHINGTON PESTICIDE LAWS EXAM EVALUATION
QUESTIONS AND ANSWERS 2025/2026 ALL RATED A+
You are storing pesticide with a CAUTION signal. Which one of the following is required
by Washington law for storage? - ✔✔Secured area, out of reach of children
Made by suspending droplets of one liquid in another.
-Oil based/ Diluted with water
-agitation may be necessary
-Milky appearance - ✔✔Emulsion
Made by dispersing fine particles in liquids.
- particles don't dissolve
- must be agitated
- cloudy or opaque - ✔✔Suspension
Made by dissolving a substance in liquid.
- Cannot be separated
- Will not settle
- transparent - ✔✔Solution
amount or concentration of a toxicant required to kill 50% of a test
population of animals.
measured in milligrams of toxicant per Kilogram at body weight of the test animal -
✔✔LD50/LC50
1 Acer - ✔✔43560 square feet
1 square mile - ✔✔640 acres
REI - ✔✔Restricted Entry Interval
Application records must be kept for - ✔✔7 years
occurs when microorganisms such as fungi and bacteria use a pesticide as food. -
✔✔microbial degradation
Intake of all chemicals, soil moisture, and fertility by plants and microorganisms. -
✔✔Absorption
the binding of Chemicals to soil particles, - ✔✔Adsorption
Phytoxic - ✔✔A chemical that causes injury to plants
QUESTIONS AND ANSWERS 2025/2026 ALL RATED A+
You are storing pesticide with a CAUTION signal. Which one of the following is required
by Washington law for storage? - ✔✔Secured area, out of reach of children
Made by suspending droplets of one liquid in another.
-Oil based/ Diluted with water
-agitation may be necessary
-Milky appearance - ✔✔Emulsion
Made by dispersing fine particles in liquids.
- particles don't dissolve
- must be agitated
- cloudy or opaque - ✔✔Suspension
Made by dissolving a substance in liquid.
- Cannot be separated
- Will not settle
- transparent - ✔✔Solution
amount or concentration of a toxicant required to kill 50% of a test
population of animals.
measured in milligrams of toxicant per Kilogram at body weight of the test animal -
✔✔LD50/LC50
1 Acer - ✔✔43560 square feet
1 square mile - ✔✔640 acres
REI - ✔✔Restricted Entry Interval
Application records must be kept for - ✔✔7 years
occurs when microorganisms such as fungi and bacteria use a pesticide as food. -
✔✔microbial degradation
Intake of all chemicals, soil moisture, and fertility by plants and microorganisms. -
✔✔Absorption
the binding of Chemicals to soil particles, - ✔✔Adsorption
Phytoxic - ✔✔A chemical that causes injury to plants
