Weed Management Quiz 2 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. When using herbicides, it is important to:

Correct Answer: B) Have separate sprayers for each herbicide.

2. In controlling perennial grasses such as quackgrass and nimblewill, it is best to:

Correct Answer: C) Spot treat with glyphosate.

3. A neighbor asks your advice about the best way to eradicate weeds that are growing in driveway cracks. Suggest any of the following except:

Correct Answer: C) 5% acetic acid (vinegar).

4. Weed that propagate s by offset is

Correct Answer: D) Pistia.

5. Perennial weeds that live for more than two years and grow year after year from the same root include:

Correct Answer: A) Dandelion and pokeweed.

6. All of the following about glyphosate and triclopyr are true except:

Correct Answer: B) Both can control grasses and sedge weeds.

7. Mode of action:Inhibit cell division or mitosis

Correct Answer: C) Cell growth inhibition.

8. When is the appropriate time to spray herbicide

Correct Answer: B) Morning.

9. Which statement is NOT TRUE?

Correct Answer: C) Herbicide cannot reduce the need for tillage.

10. Weeds can:

Correct Answer: D) All of these.

11. What is the ten foot tall plant with bamboo-like stems that grows near streams and spreads aggressively?

Correct Answer: D) Japanese knotweed.

12. The dispersal by ants is seen in

Correct Answer: A) Boerria.

13. Birds dessiminate the seeds of

Correct Answer: C) Both.

14. Which of the following statements about tilling is false:

Correct Answer: C) It quickly starves perennial roots to death after initial contact.

15. The quanity of dormant seeds in the soil changes from year to year. What is this collection of seeds called?

Correct Answer: A) Seed bank.

16. What is the purple-flowered, square stemmed weed that tolerates close mowing:

Correct Answer: B) Deadnettle.

17. Guidelines for pre-emergent herbicides include:

Correct Answer: D) Water after application.

18. Weeds with high ..... value dessiminate by wind

Correct Answer: B) Voilure coefficient.

19. What is pre emergence herbicide?

Correct Answer: B) Before weed emerge.

20. What is the herbicide?

Correct Answer: B) Chemicals that kills plant.