Indiana Commercial Pesticide Applicator
Category 3b – Turf Management Examination
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. Which of the following is the primary purpose of turfgrass
management?
A. Increase soil acidity
B. Improve turf aesthetic, playability, and health
C. Encourage weed growth
D. Reduce soil organic matter
B. Improve turf aesthetic, playability, and health
Rationale: Turf management focuses on maintaining turf in a
healthy, functional, and visually appealing state.
2. The best time to apply pre-emergent herbicides for crabgrass control
in cool-season turf is:
, A. Early spring before soil temperatures reach 55°F
B. Mid-summer when weeds are visible
C. Late fall after leaf drop
D. Winter
A. Early spring before soil temperatures reach 55°F
Rationale: Pre-emergent herbicides are effective when applied
before weed seed germination.
3. Which nutrient is most important for leaf and shoot growth in
turfgrass?
A. Potassium
B. Nitrogen
C. Phosphorus
D. Calcium
B. Nitrogen
Rationale: Nitrogen is essential for vegetative growth and green
color in turf.
4. Which turfgrass type is best suited for high-traffic areas in Indiana?
A. Kentucky bluegrass
B. Tall fescue
C. Creeping bentgrass
D. Bermuda grass
B. Tall fescue
, Rationale: Tall fescue has deep roots and tolerance for traffic and
drought.
5. The main purpose of aerification is to:
A. Increase pesticide uptake
B. Reduce soil compaction and improve air and water movement
C. Kill surface weeds
D. Increase thatch accumulation
B. Reduce soil compaction and improve air and water movement
Rationale: Aerification relieves compaction, allowing roots to grow
and improving water and nutrient movement.
6. Which disease is commonly controlled with fungicides in cool-season
turfgrass in Indiana?
A. Dollar spot
B. Southern blight
C. Fusarium wilt
D. Brown patch of Bermuda
A. Dollar spot
Rationale: Dollar spot is a widespread turf disease in cool-season
grasses in Indiana.
7. Which of the following is an example of a contact herbicide?
A. Glyphosate
B. 2,4-D
C. Paraquat
, D. Atrazine
C. Paraquat
Rationale: Contact herbicides kill only the tissue they touch, like
paraquat.
8. The ideal mowing height for Kentucky bluegrass is:
A. 0.5–1 inch
B. 2–3 inches
C. 4–5 inches
D. 6–7 inches
B. 2–3 inches
Rationale: Maintaining proper height reduces stress and prevents
weed encroachment.
9. Which of the following weeds is a perennial grassy weed?
A. Annual bluegrass
B. Crabgrass
C. Quackgrass
D. Chickweed
C. Quackgrass
Rationale: Quackgrass is a perennial grass that spreads via rhizomes.
10. When calibrating a boom sprayer, which factor is most
important?
A. Nozzle type and spacing
B. Soil pH
Category 3b – Turf Management Examination
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. Which of the following is the primary purpose of turfgrass
management?
A. Increase soil acidity
B. Improve turf aesthetic, playability, and health
C. Encourage weed growth
D. Reduce soil organic matter
B. Improve turf aesthetic, playability, and health
Rationale: Turf management focuses on maintaining turf in a
healthy, functional, and visually appealing state.
2. The best time to apply pre-emergent herbicides for crabgrass control
in cool-season turf is:
, A. Early spring before soil temperatures reach 55°F
B. Mid-summer when weeds are visible
C. Late fall after leaf drop
D. Winter
A. Early spring before soil temperatures reach 55°F
Rationale: Pre-emergent herbicides are effective when applied
before weed seed germination.
3. Which nutrient is most important for leaf and shoot growth in
turfgrass?
A. Potassium
B. Nitrogen
C. Phosphorus
D. Calcium
B. Nitrogen
Rationale: Nitrogen is essential for vegetative growth and green
color in turf.
4. Which turfgrass type is best suited for high-traffic areas in Indiana?
A. Kentucky bluegrass
B. Tall fescue
C. Creeping bentgrass
D. Bermuda grass
B. Tall fescue
, Rationale: Tall fescue has deep roots and tolerance for traffic and
drought.
5. The main purpose of aerification is to:
A. Increase pesticide uptake
B. Reduce soil compaction and improve air and water movement
C. Kill surface weeds
D. Increase thatch accumulation
B. Reduce soil compaction and improve air and water movement
Rationale: Aerification relieves compaction, allowing roots to grow
and improving water and nutrient movement.
6. Which disease is commonly controlled with fungicides in cool-season
turfgrass in Indiana?
A. Dollar spot
B. Southern blight
C. Fusarium wilt
D. Brown patch of Bermuda
A. Dollar spot
Rationale: Dollar spot is a widespread turf disease in cool-season
grasses in Indiana.
7. Which of the following is an example of a contact herbicide?
A. Glyphosate
B. 2,4-D
C. Paraquat
, D. Atrazine
C. Paraquat
Rationale: Contact herbicides kill only the tissue they touch, like
paraquat.
8. The ideal mowing height for Kentucky bluegrass is:
A. 0.5–1 inch
B. 2–3 inches
C. 4–5 inches
D. 6–7 inches
B. 2–3 inches
Rationale: Maintaining proper height reduces stress and prevents
weed encroachment.
9. Which of the following weeds is a perennial grassy weed?
A. Annual bluegrass
B. Crabgrass
C. Quackgrass
D. Chickweed
C. Quackgrass
Rationale: Quackgrass is a perennial grass that spreads via rhizomes.
10. When calibrating a boom sprayer, which factor is most
important?
A. Nozzle type and spacing
B. Soil pH
