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ILLINOIS PESTICIDE APPLICATOR
TURFGRASS EXAM 2025 BRAND NEW
ACTUAL EXAM WITH ANSWERS.
1. Pythium blight - correct answers -sunken patches 1-6 inches
across; grass blades first slimy then withered
2. Red thread - correct answers -"scorched" patches with reddish
brown cast; light pink/blood red threads emerge from leaves
3. Rust - correct answers -yellow/orange or red/brown powdery
pustules; spores rub of easily; occurs mostly during drought
4. Slime molds - correct answers -feed on decaying matter, fungi,
and bacteria; do little damage but may cause yellowing
, Page | 2
5. Summer patch and necrotic ring spot - correct answers -
scattered light green patches; form large light straw colored
circle; "frogeye / doughnut"
6. Take all patch - correct answers -problem only on bentgrass;
yellow/brown patches of dead grass
7. Yellow patch - correct answers -occurs in cooler temperatures;
distinctly sunken appearance; forms large irregularly shaped
yellow areas
8. Yellow tuft - correct answers -small yellow tufts; easily pulled
from turf due to stunted roots
9. Zoysia patch - correct answers -irregular patterns exceeding 15
feet across; numerous and randomly distributed
10. Cfvalve - correct answers -pressure regulating valve; allows
fluid to pass only at certain pressure and flow
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11. Flooding flat fan nozzle - correct answers -wide angled flat
fan pattern; used for applications that require use of high flow
rate nozzles
12. High flow nozzles - correct answers -high flow rate and wide
pattern of flooding nozzles but in flat fan nozzle design
13. Turbo flat fan nozzles - correct answers -utilizes both pre-
orifice and turbulation chamber, increasing droplet size
14. Air-Induction Flat Fan Nozzles - correct answers -Use pre-
orifice but draw air into the spray like carburetor; All work
together to make larger droplets
15. HPG (Hydrozpropyl Guar) - correct answers -drift-control
additive commonly used today
16. GPA spray application for gallons per 1,000 square feet -
correct answers -(GPA x 1000) / 43,560
ILLINOIS PESTICIDE APPLICATOR
TURFGRASS EXAM 2025 BRAND NEW
ACTUAL EXAM WITH ANSWERS.
1. Pythium blight - correct answers -sunken patches 1-6 inches
across; grass blades first slimy then withered
2. Red thread - correct answers -"scorched" patches with reddish
brown cast; light pink/blood red threads emerge from leaves
3. Rust - correct answers -yellow/orange or red/brown powdery
pustules; spores rub of easily; occurs mostly during drought
4. Slime molds - correct answers -feed on decaying matter, fungi,
and bacteria; do little damage but may cause yellowing
, Page | 2
5. Summer patch and necrotic ring spot - correct answers -
scattered light green patches; form large light straw colored
circle; "frogeye / doughnut"
6. Take all patch - correct answers -problem only on bentgrass;
yellow/brown patches of dead grass
7. Yellow patch - correct answers -occurs in cooler temperatures;
distinctly sunken appearance; forms large irregularly shaped
yellow areas
8. Yellow tuft - correct answers -small yellow tufts; easily pulled
from turf due to stunted roots
9. Zoysia patch - correct answers -irregular patterns exceeding 15
feet across; numerous and randomly distributed
10. Cfvalve - correct answers -pressure regulating valve; allows
fluid to pass only at certain pressure and flow
, Page | 3
11. Flooding flat fan nozzle - correct answers -wide angled flat
fan pattern; used for applications that require use of high flow
rate nozzles
12. High flow nozzles - correct answers -high flow rate and wide
pattern of flooding nozzles but in flat fan nozzle design
13. Turbo flat fan nozzles - correct answers -utilizes both pre-
orifice and turbulation chamber, increasing droplet size
14. Air-Induction Flat Fan Nozzles - correct answers -Use pre-
orifice but draw air into the spray like carburetor; All work
together to make larger droplets
15. HPG (Hydrozpropyl Guar) - correct answers -drift-control
additive commonly used today
16. GPA spray application for gallons per 1,000 square feet -
correct answers -(GPA x 1000) / 43,560
