fastball
changeup
curveball
screwball
knuckleball
100

Your bread-and-butter type of warm-season grass commonly found on most golf courses.

419 bermudagrass

100

What does IPM stand for?

Integrated Pest Management

100

What does ET stand for

evapotranspiration

100

What does GPA stand for 

Gallons per acre

100

What material is most commonly used to topdress putting greens?

Sand

200

Warm-season grass with stiff leaves and a dense growing habit, often found on fairways

zoysiagrass

200

What is implemented to help control weeds from growing

Preemergence

200

What device measures the rate of water moving through an irrigation pipeline?


flow meter

200

One acre equals how many square feet

43560 feet square

200

What is the term for the layer of partially decomposed organic material that accumulates between the green vegetation and soil surface?

thatch

300

Type of warm-season grass that was bred here at NCSU in 2021

Lobo Zoysiagrass

300

Has been called "tiger nut", a common weed that reproduces throught underground tubers

yellow nutsedge

300

What component allows a sprinkler head to be adjusted to the proper grade while protecting the lateral pipe from damage?

swing joint

300

What piece of equipment is used to apply a thin, uniform layer of sand to putting greens?

topdresser

300

What cultural practice uses vertical blades to cut through turfgrass and help manage thatch and organic matter?

verticutting

400

Which warm-season turfgrass commonly found in the Coastal Plain of North Carolina has a coarse texture, low fertility requirements, and a slow growth rate?

Centipedegrass
400

what indicates how strongly a chemical adsorbs to soil organic carbon

Koc

400

What measurement is used to determine the concentration of dissolved salts in irrigation water?

Electrical Conductivity (EC)

400

What happens to the application rate (GPA) when sprayer speed increases while nozzle output stays constant?

decreases

400

What is the term for the accumulation of organic matter and roots beneath the turfgrass canopy on a sand-based putting green?

mat

500

Which grassy weed commonly found on North Carolina putting greens

Poa annua

500

What tends to happen when you apply the same herbicide with the same mode of action over several years, where control starts to decrease.

Herbicide Resistance

500

What irrigation water quality measurement compares sodium concentrations to calcium and magnesium concentrations to determine the risk of soil dispersion and poor infiltration?

Sodium Adsorption Ratio (SAR)

500

A sprayer nozzle produces 0.4 GPM at 40 PSI. What pressure is required to double its flow rate, assuming the same nozzle?

160 PSI

500

What cultural practice involves removing narrow strips of turfgrass and rootzone material to manage excessive organic matter on putting greens?

Fraise mowing