Delaware Category 3 — Ornamental and Turf Pest
Control Examination 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)?
A. Eliminate all pests completely
B. Use only chemical pesticides
C. Manage pest populations below economic injury levels
D. Increase pesticide resistance
Rationale: IPM focuses on keeping pests at acceptable levels rather
than complete eradication.
2. Which pest control method uses natural enemies of pests?
A. Chemical control
B. Mechanical control
C. Cultural control
D. Biological control
,Rationale: Biological control uses predators, parasites, or pathogens to
reduce pest populations.
3. What is the most important factor in pesticide effectiveness?
A. Color of pesticide
B. Proper timing of application
C. Price of product
D. Brand name
Rationale: Timing ensures pests are targeted at their most vulnerable
stage.
4. What is a pre-emergent herbicide used for?
A. Killing mature weeds
B. Preventing weed seeds from germinating
C. Increasing soil nutrients
D. Killing insects in soil
Rationale: Pre-emergent herbicides stop weed seeds from sprouting.
5. Which insect undergoes complete metamorphosis?
,A. Grasshopper
B. Aphid
C. Beetle
D. Spider
Rationale: Beetles develop through egg, larva, pupa, and adult stages.
6. What does a fungicide control?
A. Insects
B. Weeds
C. Rodents
D. Fungi
Rationale: Fungicides are designed to control fungal diseases.
7. What is the best practice to avoid pesticide resistance?
A. Increase dosage
B. Use only one pesticide repeatedly
C. Rotate pesticides with different modes of action
D. Apply more frequently
Rationale: Rotation prevents pests from developing resistance.
, 8. Which soil condition reduces pesticide effectiveness?
A. Moderate moisture
B. Sandy soil
C. High organic matter
D. Slight acidity
Rationale: Organic matter can bind pesticides, reducing availability.
9. What is the function of surfactants in sprays?
A. Kill pests directly
B. Improve spreading and sticking of pesticide
C. Increase toxicity
D. Neutralize pesticide
Rationale: Surfactants help pesticides adhere to plant surfaces.
10. Which pest damages turf by tunneling and uprooting grass?
A. Aphids
B. Whiteflies
Control Examination 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)?
A. Eliminate all pests completely
B. Use only chemical pesticides
C. Manage pest populations below economic injury levels
D. Increase pesticide resistance
Rationale: IPM focuses on keeping pests at acceptable levels rather
than complete eradication.
2. Which pest control method uses natural enemies of pests?
A. Chemical control
B. Mechanical control
C. Cultural control
D. Biological control
,Rationale: Biological control uses predators, parasites, or pathogens to
reduce pest populations.
3. What is the most important factor in pesticide effectiveness?
A. Color of pesticide
B. Proper timing of application
C. Price of product
D. Brand name
Rationale: Timing ensures pests are targeted at their most vulnerable
stage.
4. What is a pre-emergent herbicide used for?
A. Killing mature weeds
B. Preventing weed seeds from germinating
C. Increasing soil nutrients
D. Killing insects in soil
Rationale: Pre-emergent herbicides stop weed seeds from sprouting.
5. Which insect undergoes complete metamorphosis?
,A. Grasshopper
B. Aphid
C. Beetle
D. Spider
Rationale: Beetles develop through egg, larva, pupa, and adult stages.
6. What does a fungicide control?
A. Insects
B. Weeds
C. Rodents
D. Fungi
Rationale: Fungicides are designed to control fungal diseases.
7. What is the best practice to avoid pesticide resistance?
A. Increase dosage
B. Use only one pesticide repeatedly
C. Rotate pesticides with different modes of action
D. Apply more frequently
Rationale: Rotation prevents pests from developing resistance.
, 8. Which soil condition reduces pesticide effectiveness?
A. Moderate moisture
B. Sandy soil
C. High organic matter
D. Slight acidity
Rationale: Organic matter can bind pesticides, reducing availability.
9. What is the function of surfactants in sprays?
A. Kill pests directly
B. Improve spreading and sticking of pesticide
C. Increase toxicity
D. Neutralize pesticide
Rationale: Surfactants help pesticides adhere to plant surfaces.
10. Which pest damages turf by tunneling and uprooting grass?
A. Aphids
B. Whiteflies
