Weeds - Ch. 4

Question 1

What type of plants are broadleaf weeds? Monocots/Dicots/Grasses/Sedges

Answer 1

DICOTS

Question 2

What type of weed completes its life cycle in 1 year or less? Annual/Perennial/Biennial/None of the above

Answer 2

Annual

Question 3

Which weed is a winter annual that infests athletic fields, golf course, and home lawns across texas? Crabgrass/Field Sandbur/Annual Bluegrass/Crowfootgrass

Answer 3

Annual Bluegrass

Question 4

What type of weeds are common bermudagrass and dallisgrass? Annual Grasses/Annual Broadleaves/Sedges/Perennial Grasses

Answer 4

Perennial Grasses

Question 5

When does a winter annual germinate? Spring/Summer/Fall/None of the Above

Answer 5

Fall

Question 6

Which of these plant groups produces tubers and has triangular stems? Weeds/Grasses/Broadleaves/Nutsedge

Answer 6

Nutsedge

Question 7

What term describes herbicides that kill some plants without injuring desirable plants? Selective/Nonselective/Contact/Systemic

Answer 7

Selective

Question 8

What kind of herbicide is applied before weeds emerge and begin to grow? Post-emergence/Preemergence/Selective/Contact

Answer 8

Preemergence

Question 9

TRUE OR FALSE: Mowing can influence the effectiveness of post-emergence herbicides.

Answer 9

TRUE

Question 10

What type of herbicide is glyphosate (Roundup)? Selectrive/Contact/Nonselectrive/Preemergence

Answer 10

NONSELECTIVE