Indiana Commercial Pesticide Applicator
Category 1 – Agricultural Pest Management
Examination Practice Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. Which of the following is a method to reduce pesticide resistance?
A. Repeated use of the same pesticide
B. Using pesticides at lower-than-recommended rates
C. Rotating pesticides with different modes of action
D. Applying pesticides only when pests are abundant
Rationale: Rotating pesticides with different modes of action helps
prevent pests from developing resistance.
2. The label on a pesticide product is considered:
A. A suggestion
B. Optional guidance
C. Legal document
, D. Manufacturer advertisement
Rationale: The pesticide label is a legal document; applicators must
follow all instructions.
3. The most important factor when selecting a pesticide application
method is:
A. Speed of application
B. Target pest and site characteristics
C. Cost of the pesticide
D. Applicator preference
Rationale: The application method must match the target pest and
site to be effective and minimize environmental impact.
4. Which of the following pests is controlled primarily with herbicides?
A. Aphids
B. Weeds
C. Corn rootworm
D. Armyworms
Rationale: Herbicides are chemical agents used to control weeds, not
insects or diseases.
5. What is the main purpose of a buffer zone when applying pesticides
near sensitive areas?
A. To increase application speed
B. To reduce drift and environmental contamination
C. To protect water, wildlife, and neighboring crops
, D. To comply with worker schedules
Rationale: Buffer zones prevent pesticides from reaching sensitive
areas, reducing risk to the environment.
6. Integrated Pest Management (IPM) emphasizes:
A. Complete eradication of pests
B. Combining cultural, biological, and chemical controls
C. Sole reliance on chemical pesticides
D. Ignoring economic thresholds
Rationale: IPM uses multiple strategies to manage pests in an
environmentally and economically sound way.
7. Which factor most influences pesticide volatility?
A. Label instructions
B. Temperature and formulation
C. Spray nozzle type
D. Soil type
Rationale: Volatility is affected by temperature and chemical
formulation, which can increase vapor drift.
8. What is the main symptom of herbicide injury caused by drift?
A. Wilting due to drought
B. Root galls
C. Distorted or stunted leaves on sensitive plants
D. Increased pest populations
, Rationale: Herbicide drift can cause characteristic leaf curling,
distortion, or stunting on non-target plants.
9. Which type of pesticide formulation is least likely to cause inhalation
exposure?
A. Dust
B. Wettable powder
C. Granule
D. Fog
Rationale: Granules are applied to soil surfaces and produce minimal
airborne particles.
10. A pesticide with a signal word “Danger” indicates:
A. Low toxicity
B. High acute toxicity
C. Moderate toxicity
D. Only harmful to insects
Rationale: “Danger” is the EPA signal word for products with high
acute toxicity.
11. Which is a systemic pesticide?
A. Contact fungicide
B. Insecticide absorbed by the plant and moved throughout tissues
C. Surface spray herbicide
D. Granular insecticide
Category 1 – Agricultural Pest Management
Examination Practice Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. Which of the following is a method to reduce pesticide resistance?
A. Repeated use of the same pesticide
B. Using pesticides at lower-than-recommended rates
C. Rotating pesticides with different modes of action
D. Applying pesticides only when pests are abundant
Rationale: Rotating pesticides with different modes of action helps
prevent pests from developing resistance.
2. The label on a pesticide product is considered:
A. A suggestion
B. Optional guidance
C. Legal document
, D. Manufacturer advertisement
Rationale: The pesticide label is a legal document; applicators must
follow all instructions.
3. The most important factor when selecting a pesticide application
method is:
A. Speed of application
B. Target pest and site characteristics
C. Cost of the pesticide
D. Applicator preference
Rationale: The application method must match the target pest and
site to be effective and minimize environmental impact.
4. Which of the following pests is controlled primarily with herbicides?
A. Aphids
B. Weeds
C. Corn rootworm
D. Armyworms
Rationale: Herbicides are chemical agents used to control weeds, not
insects or diseases.
5. What is the main purpose of a buffer zone when applying pesticides
near sensitive areas?
A. To increase application speed
B. To reduce drift and environmental contamination
C. To protect water, wildlife, and neighboring crops
, D. To comply with worker schedules
Rationale: Buffer zones prevent pesticides from reaching sensitive
areas, reducing risk to the environment.
6. Integrated Pest Management (IPM) emphasizes:
A. Complete eradication of pests
B. Combining cultural, biological, and chemical controls
C. Sole reliance on chemical pesticides
D. Ignoring economic thresholds
Rationale: IPM uses multiple strategies to manage pests in an
environmentally and economically sound way.
7. Which factor most influences pesticide volatility?
A. Label instructions
B. Temperature and formulation
C. Spray nozzle type
D. Soil type
Rationale: Volatility is affected by temperature and chemical
formulation, which can increase vapor drift.
8. What is the main symptom of herbicide injury caused by drift?
A. Wilting due to drought
B. Root galls
C. Distorted or stunted leaves on sensitive plants
D. Increased pest populations
, Rationale: Herbicide drift can cause characteristic leaf curling,
distortion, or stunting on non-target plants.
9. Which type of pesticide formulation is least likely to cause inhalation
exposure?
A. Dust
B. Wettable powder
C. Granule
D. Fog
Rationale: Granules are applied to soil surfaces and produce minimal
airborne particles.
10. A pesticide with a signal word “Danger” indicates:
A. Low toxicity
B. High acute toxicity
C. Moderate toxicity
D. Only harmful to insects
Rationale: “Danger” is the EPA signal word for products with high
acute toxicity.
11. Which is a systemic pesticide?
A. Contact fungicide
B. Insecticide absorbed by the plant and moved throughout tissues
C. Surface spray herbicide
D. Granular insecticide
