CH Turfgrass Management

Question 1

Which of the following is classified as a cool-season turfgrass?

Accepted Answer

Kentucky bluegrass

Answer

Bermudagrass

Answer

Zoysiagrass

Answer

St. Augustinegrass

Question 2

What is the primary purpose of core aeration in turfgrass management?

Accepted Answer

To relieve soil compaction and improve air, water, and nutrient movement

Answer

To increase soil pH

Answer

To reduce thatch accumulation

Answer

To introduce new grass seed

Question 3

Thatch in a turfgrass stand is best described as:

Accepted Answer

A layer of living and dead organic matter between the soil surface and green grass

Answer

Dead grass clippings left on the lawn surface

Answer

A fungal disease affecting turfgrass crowns

Answer

A type of soil amendment used during turf renovation

Question 4

What mowing height is generally recommended for Kentucky bluegrass during summer stress periods?

Accepted Answer

2.5–3.5 inches

Answer

0.5–1 inch

Answer

1–1.5 inches

Answer

4–5 inches

Question 5

Which warm-season turfgrass has the highest shade tolerance?

Accepted Answer

St. Augustinegrass

Answer

Bermudagrass

Answer

Zoysiagrass

Answer

Centipedegrass

Question 6

The 'one-third rule' in turfgrass mowing states that you should never remove more than one-third of the:

Accepted Answer

Leaf blade height in a single mowing

Answer

Total root mass in a single season

Answer

Lawn area in one mowing session

Answer

Annual fertilizer budget at once

Question 7

Overseeding dormant warm-season turf with annual or perennial ryegrass in the fall is primarily done to:

Accepted Answer

Maintain green color during the winter dormancy period

Answer

Permanently replace the warm-season grass with a cool-season species

Answer

Prevent summer annual weed germination the following spring

Answer

Reduce irrigation requirements during winter months