Colorado QS/CO Pesticide Test Latest Update
2025-2026 325 Questions and 100% Verified
Correct Answers Guaranteed A+
2 categories of certified operators - CORRECT ANSWER: Private Applicators
Commercial Applicators
4 types of pesticide registration - CORRECT ANSWER: Section 3 - full federal label
Section 18 - emergency exemptions
Section 24c - special local needs label
Section 25b - minimum risk pesticides
Actions to take to minimize pesticide impact on pollinators - CORRECT ANSWER:
Follow the label each year
Communicate and coordinate applications with beekeepers
Avoid treating plants when they are in bloom
Treat plants during times when pollinators are not active
Avoid drift onto flowering plants and pollinator areas
Control noxious weeds in fields or orchards that may attract pollinators
Advantages to aerosol generator or fogger sprayers - CORRECT ANSWER: Fine
droplets can penetrate tiny cracks, crevices, and heavy vegetation to reach pests in
hard-to-reach areas
Advantages to airblast sprayers - CORRECT ANSWER: Small amount of water covers
large area
Little operating time lost in refilling
,Adapted to applying sprays over large area
Advantages to chemigation - CORRECT ANSWER: Low cost of application
Provides thorough crop coverage
Advantages to duster sprayers - CORRECT ANSWER: Lightweight, relatively cheap,
and fast acting
Do not require water
Advantages to granular applicators - CORRECT ANSWER: Equipment is light, relatively
simple, and does not involve the use of water or other diluents
Heavy particles reduce drift and allow precise placement and penetration
Advantages to hand sprayers - CORRECT ANSWER: Economical, uncomplicated,
lightweight, and adaptable to many different situations
Ideal for spot treatments
Advantages to high pressure hydraulic sprayers - CORRECT ANSWER: Have enough
pressure for spray to penetrate heavy brush, livestock hair, and tops of tall trees
Trees or other hard-to-reach places can be treated with a long hose or handgun
Advantages to low pressure hydraulic sprayers - CORRECT ANSWER: Relatively
inexpensive, lightweight, and adapted to many uses
Can cover large areas rapidly
Usually low volume so one tankful will cover large area
Advantages to mist blower sprayers - CORRECT ANSWER: Saves time and labor
because less water is handled than with airblast sprayers
,Advantages to soil injectors - CORRECT ANSWER: Minimal drift
Some soil systemic insecticides can give more persistent control than foliar treatments
Advantages to ULV sprayers - CORRECT ANSWER: Saves time and labor due to the
elimination of water use
Aerosol generator or fogger sprayers - CORRECT ANSWER: These break certain
pesticide formulations into very small, fine droplets
Used to fill an area like a greenhouse or to control flies and mosquitos
Aesthetic threshold - CORRECT ANSWER: When the appearance of the damage
caused by the pest is too much so action is needed
These are difficult to develop as this is very subjective
Aggregate Pesticide Exposure - CORRECT ANSWER: All possible sources of exposure
to the same pesticide
Agricultural Chemicals and Groundwater Protection Act - CORRECT ANSWER:
Imposed rules for mixing and loading areas for pesticides, when they are handled in
quantities that exceed minimum thresholds.
A mixing and loading pad is required if you mix and load more than 500 gallons of liquid
formulated product, 3000 lbs of dry formulated product, or 1500 lbs of active ingredient
of a combination of liquid and dry product at one site annually.
Airblast sprayer calibration - tank level method - CORRECT ANSWER: 1. Select and
measure a calibration plot size in the .1-1 acre range
2. Fill tank full or to some other known level with water only
3. Spray only the calibration plot previously selected and measured
4. Return to the filling site and accurately measure the amount of water needed to refill
the tank to the previous level.
, 5. Determine the rate by dividing the gallons of water by the area sprayed
Airblast sprayers - CORRECT ANSWER: Designed to carry pesticide and water
mixtures under pressure from a pump through a series of nozzles into a blast of air that
blows into a tree by means of a fan
Appropriate pesticide mixing and loading area - CORRECT ANSWER: Outdoors or
indoors (well ventilated and lit) away from unprotected people, animals, food, and other
items that could be contaminated
Area of a circle - CORRECT ANSWER: pi X r^2
Area of a triangle - CORRECT ANSWER: (Base X height) / 2
As an applicator working for a business in Colorado, what must you always have in your
possession at a site that you are applying pesticide? - CORRECT ANSWER: The
original product container with labeling or a copy of the pesticide label and any attached
labeling for each product
At least how many times do you need to rinse a pesticide container? - CORRECT
ANSWER: 3 times at least
Back-Siphoning and how to avoid this - CORRECT ANSWER: Reverse flow of a liquid
into a fill hose. Always make sure there is an air gap between the hose and the tank.
Band applicator calibration refill method - CORRECT ANSWER: 1. Measure a known
distance, such as 300 or 400 ft
2. Fill tank with water to a marked level. Spray measured area at same speed and
pressure you would use in the field
3. Refill tank to known mark, measuring carefully the amount of water used
4. Calculate GPA using this formula:
2025-2026 325 Questions and 100% Verified
Correct Answers Guaranteed A+
2 categories of certified operators - CORRECT ANSWER: Private Applicators
Commercial Applicators
4 types of pesticide registration - CORRECT ANSWER: Section 3 - full federal label
Section 18 - emergency exemptions
Section 24c - special local needs label
Section 25b - minimum risk pesticides
Actions to take to minimize pesticide impact on pollinators - CORRECT ANSWER:
Follow the label each year
Communicate and coordinate applications with beekeepers
Avoid treating plants when they are in bloom
Treat plants during times when pollinators are not active
Avoid drift onto flowering plants and pollinator areas
Control noxious weeds in fields or orchards that may attract pollinators
Advantages to aerosol generator or fogger sprayers - CORRECT ANSWER: Fine
droplets can penetrate tiny cracks, crevices, and heavy vegetation to reach pests in
hard-to-reach areas
Advantages to airblast sprayers - CORRECT ANSWER: Small amount of water covers
large area
Little operating time lost in refilling
,Adapted to applying sprays over large area
Advantages to chemigation - CORRECT ANSWER: Low cost of application
Provides thorough crop coverage
Advantages to duster sprayers - CORRECT ANSWER: Lightweight, relatively cheap,
and fast acting
Do not require water
Advantages to granular applicators - CORRECT ANSWER: Equipment is light, relatively
simple, and does not involve the use of water or other diluents
Heavy particles reduce drift and allow precise placement and penetration
Advantages to hand sprayers - CORRECT ANSWER: Economical, uncomplicated,
lightweight, and adaptable to many different situations
Ideal for spot treatments
Advantages to high pressure hydraulic sprayers - CORRECT ANSWER: Have enough
pressure for spray to penetrate heavy brush, livestock hair, and tops of tall trees
Trees or other hard-to-reach places can be treated with a long hose or handgun
Advantages to low pressure hydraulic sprayers - CORRECT ANSWER: Relatively
inexpensive, lightweight, and adapted to many uses
Can cover large areas rapidly
Usually low volume so one tankful will cover large area
Advantages to mist blower sprayers - CORRECT ANSWER: Saves time and labor
because less water is handled than with airblast sprayers
,Advantages to soil injectors - CORRECT ANSWER: Minimal drift
Some soil systemic insecticides can give more persistent control than foliar treatments
Advantages to ULV sprayers - CORRECT ANSWER: Saves time and labor due to the
elimination of water use
Aerosol generator or fogger sprayers - CORRECT ANSWER: These break certain
pesticide formulations into very small, fine droplets
Used to fill an area like a greenhouse or to control flies and mosquitos
Aesthetic threshold - CORRECT ANSWER: When the appearance of the damage
caused by the pest is too much so action is needed
These are difficult to develop as this is very subjective
Aggregate Pesticide Exposure - CORRECT ANSWER: All possible sources of exposure
to the same pesticide
Agricultural Chemicals and Groundwater Protection Act - CORRECT ANSWER:
Imposed rules for mixing and loading areas for pesticides, when they are handled in
quantities that exceed minimum thresholds.
A mixing and loading pad is required if you mix and load more than 500 gallons of liquid
formulated product, 3000 lbs of dry formulated product, or 1500 lbs of active ingredient
of a combination of liquid and dry product at one site annually.
Airblast sprayer calibration - tank level method - CORRECT ANSWER: 1. Select and
measure a calibration plot size in the .1-1 acre range
2. Fill tank full or to some other known level with water only
3. Spray only the calibration plot previously selected and measured
4. Return to the filling site and accurately measure the amount of water needed to refill
the tank to the previous level.
, 5. Determine the rate by dividing the gallons of water by the area sprayed
Airblast sprayers - CORRECT ANSWER: Designed to carry pesticide and water
mixtures under pressure from a pump through a series of nozzles into a blast of air that
blows into a tree by means of a fan
Appropriate pesticide mixing and loading area - CORRECT ANSWER: Outdoors or
indoors (well ventilated and lit) away from unprotected people, animals, food, and other
items that could be contaminated
Area of a circle - CORRECT ANSWER: pi X r^2
Area of a triangle - CORRECT ANSWER: (Base X height) / 2
As an applicator working for a business in Colorado, what must you always have in your
possession at a site that you are applying pesticide? - CORRECT ANSWER: The
original product container with labeling or a copy of the pesticide label and any attached
labeling for each product
At least how many times do you need to rinse a pesticide container? - CORRECT
ANSWER: 3 times at least
Back-Siphoning and how to avoid this - CORRECT ANSWER: Reverse flow of a liquid
into a fill hose. Always make sure there is an air gap between the hose and the tank.
Band applicator calibration refill method - CORRECT ANSWER: 1. Measure a known
distance, such as 300 or 400 ft
2. Fill tank with water to a marked level. Spray measured area at same speed and
pressure you would use in the field
3. Refill tank to known mark, measuring carefully the amount of water used
4. Calculate GPA using this formula:
