Washington Category 3 — Ornamental
And Turf Pest Control Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary goal of integrated pest management (IPM) in
ornamental and turf systems?
A. Eliminate all pests immediately
B. Prevent all pesticide use
C. Use a combination of methods to manage pests economically and
environmentally
D. Increase pesticide resistance
Correct Answer: C
Rationale: IPM emphasizes combining cultural, biological, mechanical, and
chemical controls to manage pests effectively while minimizing
environmental impact.
, 2. Which is an example of a cultural control method in turf
management?
A. Applying insecticide
B. Mowing at proper height
C. Releasing beneficial insects
D. Spraying herbicides
Correct Answer: B
Rationale: Proper mowing height improves turf health and reduces pest
pressure.
3. What type of pesticide is used to control weeds?
A. Fungicide
B. Herbicide
C. Insecticide
D. Rodenticide
Correct Answer: B
Rationale: Herbicides are specifically designed to control unwanted plants
(weeds).
4. Which pest is most associated with feeding on turfgrass roots?
A. Aphids
B. White grubs
, C. Spider mites
D. Leafhoppers
Correct Answer: B
Rationale: White grubs feed on turf roots, causing thinning and dead
patches.
5. What does a selective herbicide do?
A. Kills all vegetation
B. Targets specific plant types
C. Prevents seed germination only
D. Sterilizes soil
Correct Answer: B
Rationale: Selective herbicides control certain weeds without harming
desired turfgrass.
6. Which practice helps reduce fungal disease in turf?
A. Overwatering
B. Watering late in the evening
C. Improving air circulation
D. Increasing nitrogen excessively
Correct Answer: C
Rationale: Better air circulation reduces leaf wetness and disease
development.
, 7. What is the purpose of a pre-emergent herbicide?
A. Kill mature weeds
B. Prevent weed seed germination
C. Kill insects in soil
D. Cure plant diseases
Correct Answer: B
Rationale: Pre-emergent herbicides stop weed seeds from germinating.
8. Which insect feeds by sucking plant sap?
A. Beetles
B. Caterpillars
C. Aphids
D. Grubs
Correct Answer: C
Rationale: Aphids use piercing-sucking mouthparts to feed on plant sap.
9. What is a common symptom of fungal turf disease?
A. Increased root growth
B. Circular dead patches
C. Excess flowering
D. Thickened leaves
Correct Answer: B
Rationale: Many turf diseases create circular or irregular dead patches.
And Turf Pest Control Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary goal of integrated pest management (IPM) in
ornamental and turf systems?
A. Eliminate all pests immediately
B. Prevent all pesticide use
C. Use a combination of methods to manage pests economically and
environmentally
D. Increase pesticide resistance
Correct Answer: C
Rationale: IPM emphasizes combining cultural, biological, mechanical, and
chemical controls to manage pests effectively while minimizing
environmental impact.
, 2. Which is an example of a cultural control method in turf
management?
A. Applying insecticide
B. Mowing at proper height
C. Releasing beneficial insects
D. Spraying herbicides
Correct Answer: B
Rationale: Proper mowing height improves turf health and reduces pest
pressure.
3. What type of pesticide is used to control weeds?
A. Fungicide
B. Herbicide
C. Insecticide
D. Rodenticide
Correct Answer: B
Rationale: Herbicides are specifically designed to control unwanted plants
(weeds).
4. Which pest is most associated with feeding on turfgrass roots?
A. Aphids
B. White grubs
, C. Spider mites
D. Leafhoppers
Correct Answer: B
Rationale: White grubs feed on turf roots, causing thinning and dead
patches.
5. What does a selective herbicide do?
A. Kills all vegetation
B. Targets specific plant types
C. Prevents seed germination only
D. Sterilizes soil
Correct Answer: B
Rationale: Selective herbicides control certain weeds without harming
desired turfgrass.
6. Which practice helps reduce fungal disease in turf?
A. Overwatering
B. Watering late in the evening
C. Improving air circulation
D. Increasing nitrogen excessively
Correct Answer: C
Rationale: Better air circulation reduces leaf wetness and disease
development.
, 7. What is the purpose of a pre-emergent herbicide?
A. Kill mature weeds
B. Prevent weed seed germination
C. Kill insects in soil
D. Cure plant diseases
Correct Answer: B
Rationale: Pre-emergent herbicides stop weed seeds from germinating.
8. Which insect feeds by sucking plant sap?
A. Beetles
B. Caterpillars
C. Aphids
D. Grubs
Correct Answer: C
Rationale: Aphids use piercing-sucking mouthparts to feed on plant sap.
9. What is a common symptom of fungal turf disease?
A. Increased root growth
B. Circular dead patches
C. Excess flowering
D. Thickened leaves
Correct Answer: B
Rationale: Many turf diseases create circular or irregular dead patches.
