TURFGRASS MANAGEMENT EXAM
QUESTIONS 8-14 WITH CORRECT
ANSWERS
· Of the basic components of an effective IPM program, which of those listed below
should probably be considered first? - Answer-- Identification of the pest
· Select an example of a regulatory tactic of the IPM approach to pest control. -
Answer-- Certified seed
· Endophytic fungi are - Answer-- Non-parasitic fungi that live in certain plants
· English Units: If the pesticide label states that there are 3.0 pounds of active ingredient
(a.i.) per gallon and the recommended application rate is 1.25 pounds of a.i. per acre,
how many acres will one gallon treat? - Answer-2.4 acres
· English Units: An average lawn of 10,000 square feet will contain about how many
turfgrass plants? - Answer-8 million
· The greenhouse effect will - Answer-- Cause the earths temperature to rise
· During the process of photosynthesis, turfgrasses use - Answer-- C02, water, sunlight
· A single turfgrass plant can have up to? - Answer-- 387 miles of roots
· Turfgrasses are not very effective in preventing erosion or nutrient leaching. - Answer-
False
· Which surface will have the highest temperature on a hot, summer day? - Answer--
Artificial turf
· The most productive agricultural soils in the world are located where grasslands have
had a tremendous influence on soil formation. - Answer-- True.
· The equivalent of how many fertilizer applications can be realized when grass
clippings are left on the lawn? - Answer-3
· In terms of home improvements, which of the following would have the highest
investment recovery rate? - Answer-- Landscape improvement
· Artificial surfaces such as Astroturf never have to be replaced because of wear. -
Answer-false
,· Research has shown that grassed areas reduce undesirable environmental noise -
Answer-- By 20-30%
Turfgrasses should not be considered a conserver of water and energy - Answer-false
· What does thatch consist of? - Answer-Dead stems, roots, crowns, sheaths
· The leaf blades of the turfgrass plant do not significantly contribute to thatch buildup. -
Answer-true
· Which factor(s) below contribute to rapid thatch accumulation? - Answer-- Vigorously
growing species or cultivars, excessively high nitrogen fertility, high heights of cut, use
of certain pesticides.
· Thatch should be controlled when it reaches a thickness of? - Answer-- ½ inch
· How many days of favorable growth conditions should be allowed following a
mechanical dethatching operation? - Answer-- 30
· Which method of thatch control will remove the greatest amount of thatch in the
shortest period of time? - Answer-- Mechanical dethatcher
Which turfgrass has the poorest high-temperature tolerance? - Answer-- Rough
bluegrass
· Ensuring good air movement over the turf is a good management practice for
alleviating - Answer-- Shade stress and heat stress
· The foremost reason for direct low-temperature injury of turfgrasses is - Answer-- Poor
soil drainage
· To help minimize low-temperature injury, turfgrasses should be mowed - Answer-- At
the upper limits of the recommended range
· Which of these turfgrasses has the best drought tolerance? - Answer-- Tall fescue
Why should frequent, light irrigation of established turfgrass be avoided? - Answer-- It
encourages shallow roots and it could prevent the turf from entering a protective
dormant state.
· Restricted wind movement in shaded sites encourages - Answer-- Humidity and
temperature stratification and longer persistence of dew
· Tree roots may interfere with normal turfgrass growth by exuding toxic substances. -
Answer-- True
, · Which of these (carpet grass, St. A., Bahia, Bermuda, zoysia) has the best drought
tolerance? - Answer-- Bermuda
· Which of these (PRG, TF, rough bluegrass, fine fescue, ARG) has the best drought
tolerance? - Answer-- Fine fescue
· Which of the following management practices will benefit turf growing under shade? -
Answer-- Judicious use of nitrogen fertilization and raise cutting height to 2.5-3.0"
· It is a good idea to prune tree roots at least once every two to three years. - Answer-
false
· Select the management practices that can be used to help increase the wear tolerance
of turfgrasses. - Answer-Maintain high soil potassium levels
· Most soil compaction is found in the top 2 inches (5.1 cm) of soil. - Answer-true
· What material will reduce the recovery time of turf damaged by motor oil and brake
fluid spills or leaks? - Answer-detergent
· What material can be applied to minimize the damage caused by a herbicide spill on
turfgrass? - Answer-- Activated charcoal
· Wetting agents are most effectively used in turfgrass management to alleviate -
Answer-- Hydrophobicity soil conditions
· Hydrophobic soils are usually associated with soils having a high sand content. -
Answer-true
· How are the paint/pigment-based and dye-based colorants different from each other? -
Answer-- The paint based materials are colorfast and longer lasting than dyes and dyes
tend to rub off more easily than paint based materials.
· Water-absorbing polymers - Answer-- Can reduce the frequency of irrigation
· Plant hormones applied to the foliage or soil of turfgrasses may promote or inhibit
plant growth. - Answer-true
· It would be surprising to find a single hormone or combination of hormones that would
have the same effect on all turfgrass species growing under all (climatic and cultural)
conditions. - Answer-true
· If a turfgrass manager decided to try a biostimulant, under what conditions would the
greatest effect be seen? - Answer-- Heat and cold stress conditions and drought and
salinity stress conditions.
QUESTIONS 8-14 WITH CORRECT
ANSWERS
· Of the basic components of an effective IPM program, which of those listed below
should probably be considered first? - Answer-- Identification of the pest
· Select an example of a regulatory tactic of the IPM approach to pest control. -
Answer-- Certified seed
· Endophytic fungi are - Answer-- Non-parasitic fungi that live in certain plants
· English Units: If the pesticide label states that there are 3.0 pounds of active ingredient
(a.i.) per gallon and the recommended application rate is 1.25 pounds of a.i. per acre,
how many acres will one gallon treat? - Answer-2.4 acres
· English Units: An average lawn of 10,000 square feet will contain about how many
turfgrass plants? - Answer-8 million
· The greenhouse effect will - Answer-- Cause the earths temperature to rise
· During the process of photosynthesis, turfgrasses use - Answer-- C02, water, sunlight
· A single turfgrass plant can have up to? - Answer-- 387 miles of roots
· Turfgrasses are not very effective in preventing erosion or nutrient leaching. - Answer-
False
· Which surface will have the highest temperature on a hot, summer day? - Answer--
Artificial turf
· The most productive agricultural soils in the world are located where grasslands have
had a tremendous influence on soil formation. - Answer-- True.
· The equivalent of how many fertilizer applications can be realized when grass
clippings are left on the lawn? - Answer-3
· In terms of home improvements, which of the following would have the highest
investment recovery rate? - Answer-- Landscape improvement
· Artificial surfaces such as Astroturf never have to be replaced because of wear. -
Answer-false
,· Research has shown that grassed areas reduce undesirable environmental noise -
Answer-- By 20-30%
Turfgrasses should not be considered a conserver of water and energy - Answer-false
· What does thatch consist of? - Answer-Dead stems, roots, crowns, sheaths
· The leaf blades of the turfgrass plant do not significantly contribute to thatch buildup. -
Answer-true
· Which factor(s) below contribute to rapid thatch accumulation? - Answer-- Vigorously
growing species or cultivars, excessively high nitrogen fertility, high heights of cut, use
of certain pesticides.
· Thatch should be controlled when it reaches a thickness of? - Answer-- ½ inch
· How many days of favorable growth conditions should be allowed following a
mechanical dethatching operation? - Answer-- 30
· Which method of thatch control will remove the greatest amount of thatch in the
shortest period of time? - Answer-- Mechanical dethatcher
Which turfgrass has the poorest high-temperature tolerance? - Answer-- Rough
bluegrass
· Ensuring good air movement over the turf is a good management practice for
alleviating - Answer-- Shade stress and heat stress
· The foremost reason for direct low-temperature injury of turfgrasses is - Answer-- Poor
soil drainage
· To help minimize low-temperature injury, turfgrasses should be mowed - Answer-- At
the upper limits of the recommended range
· Which of these turfgrasses has the best drought tolerance? - Answer-- Tall fescue
Why should frequent, light irrigation of established turfgrass be avoided? - Answer-- It
encourages shallow roots and it could prevent the turf from entering a protective
dormant state.
· Restricted wind movement in shaded sites encourages - Answer-- Humidity and
temperature stratification and longer persistence of dew
· Tree roots may interfere with normal turfgrass growth by exuding toxic substances. -
Answer-- True
, · Which of these (carpet grass, St. A., Bahia, Bermuda, zoysia) has the best drought
tolerance? - Answer-- Bermuda
· Which of these (PRG, TF, rough bluegrass, fine fescue, ARG) has the best drought
tolerance? - Answer-- Fine fescue
· Which of the following management practices will benefit turf growing under shade? -
Answer-- Judicious use of nitrogen fertilization and raise cutting height to 2.5-3.0"
· It is a good idea to prune tree roots at least once every two to three years. - Answer-
false
· Select the management practices that can be used to help increase the wear tolerance
of turfgrasses. - Answer-Maintain high soil potassium levels
· Most soil compaction is found in the top 2 inches (5.1 cm) of soil. - Answer-true
· What material will reduce the recovery time of turf damaged by motor oil and brake
fluid spills or leaks? - Answer-detergent
· What material can be applied to minimize the damage caused by a herbicide spill on
turfgrass? - Answer-- Activated charcoal
· Wetting agents are most effectively used in turfgrass management to alleviate -
Answer-- Hydrophobicity soil conditions
· Hydrophobic soils are usually associated with soils having a high sand content. -
Answer-true
· How are the paint/pigment-based and dye-based colorants different from each other? -
Answer-- The paint based materials are colorfast and longer lasting than dyes and dyes
tend to rub off more easily than paint based materials.
· Water-absorbing polymers - Answer-- Can reduce the frequency of irrigation
· Plant hormones applied to the foliage or soil of turfgrasses may promote or inhibit
plant growth. - Answer-true
· It would be surprising to find a single hormone or combination of hormones that would
have the same effect on all turfgrass species growing under all (climatic and cultural)
conditions. - Answer-true
· If a turfgrass manager decided to try a biostimulant, under what conditions would the
greatest effect be seen? - Answer-- Heat and cold stress conditions and drought and
salinity stress conditions.
