Chapter 4 - Weed Management

Question 1

Windmillgrass, bermudagrass and dallisgrass are all examples of what type of weeds?

a. annual grasses
b. annual broadleaves
c. sedges
d. perennial grasses

Answer 1

d. perennial grasses

Question 2

____________ is a cool season grass found in athletic fields, golf courses, home lawns and flower beds across the state.

a. crabgrass
b. field sandbur
c. annual bluegrass
d. crowfootgrass

Answer 2

c. annual bluegrass

Question 3

An annual grass that is commonly a problem in newly seeded turf and heavy traffic area is:

a. goosegrass
b. field sandbur
c. foxtail
d. annual ryegrass

Answer 3

a. goosegrass

Question 4

This plant has dark green leaves covered with soft hair and cannot be controlled by mowing.

a. mouseear chickweed
b. henbit
c. carolina geranium
d. sowthistle

Answer 4

a. mouseear chickweed

Question 5

___________ is a low-growing, creeping perennial weed that prefers moist soils.

a. dandelion
b. yellow woodsorrel
c. dichondra
d. henbit

Answer 5

c. dichondra

Question 6

__________ is an annual broadleaf weed that emerges in mid-winter with spiny leaves and yellow flowers.

a. chickweed
b. sowthistle
c. henbit
d. prostrate spurge

Answer 6

b. sowthistle

Question 7

These plants have triangular stems and produce tubers.

a. weeds
b. grasses
c. broadleaves
d. nutsedge

Answer 7

d. nutsedge

Question 8

Herbicides that are applied to control weeds before they emerge and begin to grow are ___________.

a. postemergent
b. preemergent
c. non-selective
d. surfacants

Answer 8

b. preemergent

Question 9

Plants that have a waxy cuticle on the leaf surface will absorb herbicide solutions better than plants without this layer.
true or false

Answer 9

false

Question 10

An example of a grassy weed that is controlled better with a postemergent herbicide is:

a. crabgrass
b. annual bluegrass
c. dallisgrass
d. bermudagrass

Answer 10

c. dalligrass