Missouri Ornamental and Turf Pest
Control Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which principle is central to Integrated Pest Management (IPM) in turf
systems?
A. Routine calendar-based pesticide application
B. Eliminating all insects regardless of threshold
C. Combining biological, cultural, mechanical, and chemical controls
D. Using only synthetic pesticides for efficiency
C. Combining biological, cultural, mechanical, and chemical controls
IPM emphasizes multiple compatible strategies to manage pests
economically and with minimal environmental impact rather than
relying solely on chemical control.
2. What is the primary purpose of a pesticide label?
A. Marketing the product to consumers
, B. Providing legal instructions for safe and effective use
C. Listing competitor comparisons
D. Describing pest life cycles in detail
B. Providing legal instructions for safe and effective use
The pesticide label is a legal document that dictates how the product
must be used to ensure safety and effectiveness.
3. Which pest is most commonly associated with damage to turfgrass
roots?
A. Aphids
B. White grubs
C. Leafhoppers
D. Spider mites
B. White grubs
White grubs feed on turfgrass roots, leading to thinning, wilting, and
easily lifted sod.
4. What is the best time to apply pre-emergent herbicides for crabgrass
control?
A. After crabgrass germination
B. During winter dormancy
C. Before soil temperatures reach germination levels
D. After flowering of crabgrass
C. Before soil temperatures reach germination levels
, Pre-emergent herbicides must be applied before weed seeds
germinate, typically when soil temperatures approach 55°F.
5. Which disease is commonly caused by excessive nitrogen and high
humidity in turf?
A. Powdery mildew
B. Brown patch
C. Root rot
D. Rust
B. Brown patch
Brown patch thrives in warm, humid conditions and is often
exacerbated by excessive nitrogen fertilization.
6. What is the function of a surfactant in pesticide applications?
A. To increase pesticide toxicity
B. To improve spray coverage and adherence
C. To neutralize pesticide activity
D. To repel insects from treated areas
B. To improve spray coverage and adherence
Surfactants help pesticides spread evenly and stick to plant surfaces
for better effectiveness.
7. Which of the following is a cultural control method in turf
management?
A. Spraying insecticides weekly
B. Adjusting mowing height appropriately
, C. Using chemical fungicides
D. Applying synthetic fertilizers only
B. Adjusting mowing height appropriately
Cultural controls include practices like mowing, irrigation, and
fertilization adjustments to reduce pest pressure.
8. What does the term “economic threshold” refer to?
A. The cost of pesticide products
B. The pest level at which damage justifies control measures
C. The maximum pesticide application rate allowed
D. The total pest population in an ecosystem
B. The pest level at which damage justifies control measures
Economic threshold is the point where pest damage becomes
economically significant enough to warrant intervention.
9. Which insect is a major pest of Kentucky bluegrass in Missouri?
A. Fire ants
B. Sod webworms
C. Termites
D. Fleas
B. Sod webworms
Sod webworms feed on turfgrass blades and can cause noticeable
thinning and brown patches.
10. What is the primary mode of action of systemic herbicides?
A. They burn plant tissue on contact
Control Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which principle is central to Integrated Pest Management (IPM) in turf
systems?
A. Routine calendar-based pesticide application
B. Eliminating all insects regardless of threshold
C. Combining biological, cultural, mechanical, and chemical controls
D. Using only synthetic pesticides for efficiency
C. Combining biological, cultural, mechanical, and chemical controls
IPM emphasizes multiple compatible strategies to manage pests
economically and with minimal environmental impact rather than
relying solely on chemical control.
2. What is the primary purpose of a pesticide label?
A. Marketing the product to consumers
, B. Providing legal instructions for safe and effective use
C. Listing competitor comparisons
D. Describing pest life cycles in detail
B. Providing legal instructions for safe and effective use
The pesticide label is a legal document that dictates how the product
must be used to ensure safety and effectiveness.
3. Which pest is most commonly associated with damage to turfgrass
roots?
A. Aphids
B. White grubs
C. Leafhoppers
D. Spider mites
B. White grubs
White grubs feed on turfgrass roots, leading to thinning, wilting, and
easily lifted sod.
4. What is the best time to apply pre-emergent herbicides for crabgrass
control?
A. After crabgrass germination
B. During winter dormancy
C. Before soil temperatures reach germination levels
D. After flowering of crabgrass
C. Before soil temperatures reach germination levels
, Pre-emergent herbicides must be applied before weed seeds
germinate, typically when soil temperatures approach 55°F.
5. Which disease is commonly caused by excessive nitrogen and high
humidity in turf?
A. Powdery mildew
B. Brown patch
C. Root rot
D. Rust
B. Brown patch
Brown patch thrives in warm, humid conditions and is often
exacerbated by excessive nitrogen fertilization.
6. What is the function of a surfactant in pesticide applications?
A. To increase pesticide toxicity
B. To improve spray coverage and adherence
C. To neutralize pesticide activity
D. To repel insects from treated areas
B. To improve spray coverage and adherence
Surfactants help pesticides spread evenly and stick to plant surfaces
for better effectiveness.
7. Which of the following is a cultural control method in turf
management?
A. Spraying insecticides weekly
B. Adjusting mowing height appropriately
, C. Using chemical fungicides
D. Applying synthetic fertilizers only
B. Adjusting mowing height appropriately
Cultural controls include practices like mowing, irrigation, and
fertilization adjustments to reduce pest pressure.
8. What does the term “economic threshold” refer to?
A. The cost of pesticide products
B. The pest level at which damage justifies control measures
C. The maximum pesticide application rate allowed
D. The total pest population in an ecosystem
B. The pest level at which damage justifies control measures
Economic threshold is the point where pest damage becomes
economically significant enough to warrant intervention.
9. Which insect is a major pest of Kentucky bluegrass in Missouri?
A. Fire ants
B. Sod webworms
C. Termites
D. Fleas
B. Sod webworms
Sod webworms feed on turfgrass blades and can cause noticeable
thinning and brown patches.
10. What is the primary mode of action of systemic herbicides?
A. They burn plant tissue on contact
