TURF GRASS EXAM 3 QUESTIONS AND
ANSWERS
For a lawn infested with both spurge and oxalis, the most appropriate class(es) of
herbicides to control both weeds would be: - Answer-selective post-emergent
Aerification increases the movement of all except which of the following into the soil? -
Answer-light
One advantage to lowering mowing height is that it produces stronger plants with more
extensive root systems. T/F. - Answer-false
A sprig is a stem with at least one node or crown and any attached roots or leaves. -
Answer-true
Endophytes - Answer-are beneficial in many cases
Type of mower with the highest safety. ______________ - Answer-flail
The cost of slow release fertilizers is generally cheaper than soluble fertilizer types.
True/False. - Answer-false
Cool season turf grasses are considered C3 ? True or False - Answer-true
Transpiration occurs when rootzones are saturated or when precipitation rate exceeds
the infiltration rate of the rootzone - Answer-false
Match each of the following turfgrasses with its geographic origin: - Answer-Bermuda
grass - South Africa
Zoysiagrass - Asia
Bahiagrass - South America
Kikuyugrass - East Africa
Tall Fescue - Europe
Perennial Ryegrass - Europe, Asia, and North Africa
Centipede grass - China
Carpet grass -North America
Which is NOT a warm season weed? - Answer-rescuegrass
What broadleaf summer perennial has noticeably heart-shaped leaves? - Answer-oxails
Which type of sterilization do you cover the soil with clear plastic for 6 weeks? - Answer-
solarization
, Which weed has square stems, small, pink flowers, grows up to 16 inches in height and
is in the 'Mint' family? - Answer-henbit
Hybrid bermudagrass is available via inexpensive seed. T or F? - Answer-false
Select ALL of the following that are 'annual' weeds: - Answer-Goosegrass
Rescuegrass
Crabgrass
Chickweed
Annual bluegrass
Spurge
Sandbur
Purslane
Aster
Henbit
Which of the following make up the vast majority of pathogens in turf: - Answer-fungi
Bermudagrass has: - Answer-both stolons and rhizomes
When a plant/grass has bacterial wilt, the leaves appear? - Answer-curled and necrotic
Soil microbes can collectively weigh thousands of pounds per acre. True or False? -
Answer-true
Contact fungicides are more prone to resistance development than systemic fungicides.
True or False? - Answer-false
Select ALL of the following that are warm-season turfgrass species. - Answer-St.
Augustinegrass
kikuyugrass
centipedegrass
blue grama
bermudagrass
I am a warm-season turfgrass native to Asia and have a low thatch production potential.
I am ____________? - Answer-bermudagrass
am a cool-season turfgrass that has a sod-forming growth habit (with stolons, but
without rhizomes) and can sometimes be considered weedy. I am
_________________? - Answer-rough-blue grass
The efficacy of herbicide applications can be reduced by (select all that apply): -
Answer-Incorrect application
Drift & Volatilization
Leaching (Irrigation or Rainfall)
ANSWERS
For a lawn infested with both spurge and oxalis, the most appropriate class(es) of
herbicides to control both weeds would be: - Answer-selective post-emergent
Aerification increases the movement of all except which of the following into the soil? -
Answer-light
One advantage to lowering mowing height is that it produces stronger plants with more
extensive root systems. T/F. - Answer-false
A sprig is a stem with at least one node or crown and any attached roots or leaves. -
Answer-true
Endophytes - Answer-are beneficial in many cases
Type of mower with the highest safety. ______________ - Answer-flail
The cost of slow release fertilizers is generally cheaper than soluble fertilizer types.
True/False. - Answer-false
Cool season turf grasses are considered C3 ? True or False - Answer-true
Transpiration occurs when rootzones are saturated or when precipitation rate exceeds
the infiltration rate of the rootzone - Answer-false
Match each of the following turfgrasses with its geographic origin: - Answer-Bermuda
grass - South Africa
Zoysiagrass - Asia
Bahiagrass - South America
Kikuyugrass - East Africa
Tall Fescue - Europe
Perennial Ryegrass - Europe, Asia, and North Africa
Centipede grass - China
Carpet grass -North America
Which is NOT a warm season weed? - Answer-rescuegrass
What broadleaf summer perennial has noticeably heart-shaped leaves? - Answer-oxails
Which type of sterilization do you cover the soil with clear plastic for 6 weeks? - Answer-
solarization
, Which weed has square stems, small, pink flowers, grows up to 16 inches in height and
is in the 'Mint' family? - Answer-henbit
Hybrid bermudagrass is available via inexpensive seed. T or F? - Answer-false
Select ALL of the following that are 'annual' weeds: - Answer-Goosegrass
Rescuegrass
Crabgrass
Chickweed
Annual bluegrass
Spurge
Sandbur
Purslane
Aster
Henbit
Which of the following make up the vast majority of pathogens in turf: - Answer-fungi
Bermudagrass has: - Answer-both stolons and rhizomes
When a plant/grass has bacterial wilt, the leaves appear? - Answer-curled and necrotic
Soil microbes can collectively weigh thousands of pounds per acre. True or False? -
Answer-true
Contact fungicides are more prone to resistance development than systemic fungicides.
True or False? - Answer-false
Select ALL of the following that are warm-season turfgrass species. - Answer-St.
Augustinegrass
kikuyugrass
centipedegrass
blue grama
bermudagrass
I am a warm-season turfgrass native to Asia and have a low thatch production potential.
I am ____________? - Answer-bermudagrass
am a cool-season turfgrass that has a sod-forming growth habit (with stolons, but
without rhizomes) and can sometimes be considered weedy. I am
_________________? - Answer-rough-blue grass
The efficacy of herbicide applications can be reduced by (select all that apply): -
Answer-Incorrect application
Drift & Volatilization
Leaching (Irrigation or Rainfall)
