Nevada Commercial Pesticide
Applicator Certification Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which of the following is the primary goal of integrated pest
management (IPM)?
A. Eliminate all pests immediately
B. Maximize pesticide use
C. Minimize economic, health, and environmental risks while
controlling pests
D. Focus solely on chemical control
Integrated Pest Management (IPM) emphasizes a combination of
biological, cultural, mechanical, and chemical methods to control
pests while minimizing risks to human health and the environment.
2. Which type of pesticide is most effective for systemic control of
insects in plants?
A. Contact insecticides
B. Systemic insecticides
C. Repellents
D. Granular formulations
Systemic insecticides are absorbed by the plant and translocated
throughout its tissues, providing internal protection against insects
that feed on the plant.
3. Which protective equipment is required when applying highly toxic
pesticides?
A. Safety glasses
, B. Dust mask
C. Chemical-resistant gloves, long-sleeved clothing, and respirator
D. Sneakers and short sleeves
Highly toxic pesticides require full personal protective equipment
(PPE), including chemical-resistant gloves, protective clothing, and
respiratory protection, to prevent exposure.
4. Which of the following is an example of a biological pesticide?
A. Glyphosate
B. Malathion
C. Bacillus thuringiensis (Bt)
D. Atrazine
Biological pesticides use living organisms, such as bacteria, fungi, or
viruses, to control pests. Bt produces toxins that target specific insect
larvae.
5. The label on a pesticide container provides all of the following EXCEPT:
A. Target pests
B. Application rates
C. Storage instructions
D. Manufacturer profit margin
Pesticide labels are legal documents that provide information on
proper use, safety, and environmental precautions, but they do not
disclose financial details.
6. Which factor most influences pesticide drift?
A. Soil type
B. Wind speed and direction
C. Target pest life stage
D. Label expiration date
Drift occurs when pesticide particles or vapors move away from the
target area, and wind is the primary factor affecting drift.
7. What is the main purpose of adjuvants in pesticide formulations?
A. Kill pests
B. Neutralize toxicity
C. Enhance pesticide effectiveness or application
D. Reduce storage requirements
, Adjuvants improve pesticide performance by increasing spread,
penetration, adhesion, or mixing with water.
8. Which of the following is a herbicide mode of action?
A. Antifeedant
B. Inhibit photosynthesis
C. Chitin synthesis inhibition
D. Growth regulator for insects
Herbicides can act through multiple modes of action, such as
interfering with photosynthesis, amino acid synthesis, or cell division.
9. The term “signal word” on a pesticide label indicates:
A. Price category
B. Relative acute toxicity
C. Environmental impact
D. Target pest species
Signal words such as “Danger,” “Warning,” and “Caution” reflect the
pesticide’s acute toxicity level to humans.
10. What is the primary hazard of applying organophosphate
insecticides?
A. Carcinogenic effects
B. Cholinesterase inhibition leading to nervous system effects
C. Skin discoloration
D. Increased photosynthesis in plants
Organophosphates inhibit acetylcholinesterase, causing excessive
nerve stimulation, which can lead to acute toxicity in humans and
animals.
11. Which pesticide formulation is most suitable for minimizing drift
during aerial application?
A. Ultra-low volume (ULV) mist
B. Wettable powder (WP) or water-based sprays with coarse
droplets
C. Emulsifiable concentrates (EC) applied at high pressure
D. Fumigant gas
Coarse droplets reduce the likelihood of drift compared to fine mist
or aerosolized applications.
Applicator Certification Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which of the following is the primary goal of integrated pest
management (IPM)?
A. Eliminate all pests immediately
B. Maximize pesticide use
C. Minimize economic, health, and environmental risks while
controlling pests
D. Focus solely on chemical control
Integrated Pest Management (IPM) emphasizes a combination of
biological, cultural, mechanical, and chemical methods to control
pests while minimizing risks to human health and the environment.
2. Which type of pesticide is most effective for systemic control of
insects in plants?
A. Contact insecticides
B. Systemic insecticides
C. Repellents
D. Granular formulations
Systemic insecticides are absorbed by the plant and translocated
throughout its tissues, providing internal protection against insects
that feed on the plant.
3. Which protective equipment is required when applying highly toxic
pesticides?
A. Safety glasses
, B. Dust mask
C. Chemical-resistant gloves, long-sleeved clothing, and respirator
D. Sneakers and short sleeves
Highly toxic pesticides require full personal protective equipment
(PPE), including chemical-resistant gloves, protective clothing, and
respiratory protection, to prevent exposure.
4. Which of the following is an example of a biological pesticide?
A. Glyphosate
B. Malathion
C. Bacillus thuringiensis (Bt)
D. Atrazine
Biological pesticides use living organisms, such as bacteria, fungi, or
viruses, to control pests. Bt produces toxins that target specific insect
larvae.
5. The label on a pesticide container provides all of the following EXCEPT:
A. Target pests
B. Application rates
C. Storage instructions
D. Manufacturer profit margin
Pesticide labels are legal documents that provide information on
proper use, safety, and environmental precautions, but they do not
disclose financial details.
6. Which factor most influences pesticide drift?
A. Soil type
B. Wind speed and direction
C. Target pest life stage
D. Label expiration date
Drift occurs when pesticide particles or vapors move away from the
target area, and wind is the primary factor affecting drift.
7. What is the main purpose of adjuvants in pesticide formulations?
A. Kill pests
B. Neutralize toxicity
C. Enhance pesticide effectiveness or application
D. Reduce storage requirements
, Adjuvants improve pesticide performance by increasing spread,
penetration, adhesion, or mixing with water.
8. Which of the following is a herbicide mode of action?
A. Antifeedant
B. Inhibit photosynthesis
C. Chitin synthesis inhibition
D. Growth regulator for insects
Herbicides can act through multiple modes of action, such as
interfering with photosynthesis, amino acid synthesis, or cell division.
9. The term “signal word” on a pesticide label indicates:
A. Price category
B. Relative acute toxicity
C. Environmental impact
D. Target pest species
Signal words such as “Danger,” “Warning,” and “Caution” reflect the
pesticide’s acute toxicity level to humans.
10. What is the primary hazard of applying organophosphate
insecticides?
A. Carcinogenic effects
B. Cholinesterase inhibition leading to nervous system effects
C. Skin discoloration
D. Increased photosynthesis in plants
Organophosphates inhibit acetylcholinesterase, causing excessive
nerve stimulation, which can lead to acute toxicity in humans and
animals.
11. Which pesticide formulation is most suitable for minimizing drift
during aerial application?
A. Ultra-low volume (ULV) mist
B. Wettable powder (WP) or water-based sprays with coarse
droplets
C. Emulsifiable concentrates (EC) applied at high pressure
D. Fumigant gas
Coarse droplets reduce the likelihood of drift compared to fine mist
or aerosolized applications.
