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CO Turf QS Test: Questions With Solutions (Rated A+)
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CO Turf QS Test: Questions With Solutions (Rated A+)
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CO Turf QS Test: Questions With Solutions (Rated A+)What type of sites does the turfgrass industry in Colorado include? Right
Ans - Lawns, institutional and industrial grounds, golf courses, athletic fields,
and other recreational turf, parks, roadsides, airports, and cemetaries
Most important factors in maintaining good turf (5) Right Ans - Selecting
the right grass
Mowing
Watering
Fertilizing
Thatch control
Types of cool season turfgrass (3) Right Ans - Bluegrass
Tall fescue
Ryegrass
Type of warm season turfgrass (3) Right Ans - Bermudagrass
Zoysia
Buffalograss
When do problems develop with turfgrass? Right Ans - When the grass is
unable to withstand environmental stress or when good management cannot
offset the effects of environmental stress
What are the steps of diagnosing a problem in turfgrass? (5) Right Ans -
Determine the kind of grasses involved
Find out why, if possible, the problem occurred
Determine if it can be corrected by management practices, soil modification,
or pesticides
Check to see if a chemical is labeled for both the species and the problem
Recommend good cultural practices that will assist in recovery
What is IPM? Right Ans - Integrated pest management
An approach to pest management that relies on a combination of common-
sense practices.
Does IPM aim to eliminate all pests? Right Ans - No
Maintain them at tolerable levels
,What are the five steps of IPM? Right Ans - Education
Monitoring
Prevention
Intervention/Control
Evaluation and Planning
What is an action threshold? Right Ans - A point at which pest populations
or environmental conditions indicate that pest control action must be taken
What are the two types of action thresholds? Right Ans - Economic
Aesthetic
What is an economic action threshold? Right Ans - Point at which pest
populations or environmental conditions indicate that pest control action
must be taken to prevent an economic loss
What is an aesthetic action threshold? Right Ans - Point at which pest
populations or environmental conditions indicate that pest control action
must be taken to prevent an aesthetic loss
Example of a highly targeted chemical approach? Right Ans - Pheromones
to inhibit reproduction in insects
Soil management Right Ans - Very important in turfgrass management. pH
of 6-7 is desired. Need adequate water and oxygen.
Issues with soil management (7) Right Ans - Excessively wet
Excessively dry
Excessively acidic
Excessively alkaline
Prone to compaction
Impenetrable
Full of debris
What are turfgrass cultivars? Right Ans - Types of grass species selected for
specific characteristics such as disease resistance, tolerance to unusual
environments, and appearance
, How do you provide tolerance to varied sites? Right Ans - Plant at least 2
different species or cultivars
What are examples of cultural practices for turfgrass management? (4)
Right Ans - Mowing
Fertilizing
Watering
Cultivating
What are the three important ingredients for turfgrass fertilizer management?
Right Ans - Type of fert
Rate of fert
Timing of fert
What is the most important fertilizer element in maintaining turfgrass?
Right Ans - Nitrogen
What are the two forms of nitrogen in fertilizer? Right Ans - Ammonium
Nitrate
What is fertilizer rate expressed as? Right Ans - lbs of N per 1,000 sq. ft.
How much N should be applied per acre per application? Right Ans - .5-1 lb
What other element (besides N-K-P) do Colorado lawns need? Right Ans -
Due to high pH soils here, Iron (Fe) is needed in fertilizer applications
Short term detrimental effects of mowing turfgrass? (5) Right Ans -
Temporary cessation of root growth
Reduces carbohydrate production and storage
Created entry points for pathogens
Temporarily increases water loss
Reduces water absorption by roots
What is the recommended mowing height for lawns? Right Ans - 2.5-3
inches
Why is it better to leave clippings after mowing? Right Ans - Rich in N and
recycle P into the soil
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