GUAM COMMERCIAL PESTICIDE
APPLICATORS EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the primary federal law regulating pesticide use in the United
States, including Guam?
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
FIFRA governs pesticide registration, distribution, sale, and use to
ensure safe handling and application.
2. Which label section provides specific instructions for safe use and
application of a pesticide?
Directions for Use
This section details how to properly and safely apply the pesticide,
including target pests and application rates.
3. What is the best way to prevent pesticide drift during application?
Apply pesticides during calm weather conditions
, Calm weather reduces the risk of pesticide particles drifting to
unintended areas.
4. How often should pesticide application equipment be calibrated?
At least once a year or when adjustments are made
Calibration ensures accurate application rates, preventing over- or
under-application.
5. What personal protective equipment (PPE) is generally required when
handling pesticides?
Gloves, protective clothing, eye protection, and respirators as
specified on the label
PPE protects applicators from exposure to harmful chemicals.
6. What is the minimum age for a commercial pesticide applicator
certification in most jurisdictions?
18 years old
Most programs require applicators to be at least 18 due to safety
and legal responsibilities.
7. Which of the following best describes the term “pesticide”?
Any substance intended to prevent, destroy, repel, or mitigate pests
This includes herbicides, insecticides, fungicides, rodenticides, and
others.
8. Why is it important to never use a pesticide after its expiration date?
The product may be ineffective or unsafe
, Expired pesticides can degrade, losing efficacy or producing harmful
byproducts.
9. What is the main reason for rotating pesticides with different modes
of action?
To prevent pesticide resistance in pests
Using different modes of action reduces the chance that pests
develop resistance.
10. What does the signal word "Danger" on a pesticide label
indicate?
The pesticide is highly toxic
“Danger” is the highest toxicity category requiring extra precautions.
11. What is the first step in responding to a pesticide spill?
Isolate the area and prevent others from entering
Securing the area helps prevent exposure and limits contamination.
12. Which of the following is NOT a common route of pesticide
exposure?
Hearing
Exposure occurs mainly through skin contact, inhalation, ingestion,
and eye contact.
13. What is the purpose of the Environmental Protection Agency
(EPA) in pesticide regulation?
APPLICATORS EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the primary federal law regulating pesticide use in the United
States, including Guam?
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
FIFRA governs pesticide registration, distribution, sale, and use to
ensure safe handling and application.
2. Which label section provides specific instructions for safe use and
application of a pesticide?
Directions for Use
This section details how to properly and safely apply the pesticide,
including target pests and application rates.
3. What is the best way to prevent pesticide drift during application?
Apply pesticides during calm weather conditions
, Calm weather reduces the risk of pesticide particles drifting to
unintended areas.
4. How often should pesticide application equipment be calibrated?
At least once a year or when adjustments are made
Calibration ensures accurate application rates, preventing over- or
under-application.
5. What personal protective equipment (PPE) is generally required when
handling pesticides?
Gloves, protective clothing, eye protection, and respirators as
specified on the label
PPE protects applicators from exposure to harmful chemicals.
6. What is the minimum age for a commercial pesticide applicator
certification in most jurisdictions?
18 years old
Most programs require applicators to be at least 18 due to safety
and legal responsibilities.
7. Which of the following best describes the term “pesticide”?
Any substance intended to prevent, destroy, repel, or mitigate pests
This includes herbicides, insecticides, fungicides, rodenticides, and
others.
8. Why is it important to never use a pesticide after its expiration date?
The product may be ineffective or unsafe
, Expired pesticides can degrade, losing efficacy or producing harmful
byproducts.
9. What is the main reason for rotating pesticides with different modes
of action?
To prevent pesticide resistance in pests
Using different modes of action reduces the chance that pests
develop resistance.
10. What does the signal word "Danger" on a pesticide label
indicate?
The pesticide is highly toxic
“Danger” is the highest toxicity category requiring extra precautions.
11. What is the first step in responding to a pesticide spill?
Isolate the area and prevent others from entering
Securing the area helps prevent exposure and limits contamination.
12. Which of the following is NOT a common route of pesticide
exposure?
Hearing
Exposure occurs mainly through skin contact, inhalation, ingestion,
and eye contact.
13. What is the purpose of the Environmental Protection Agency
(EPA) in pesticide regulation?
