Potential Exam Questions for Weed Management

Warning: The following questions may be poorly worded and subjective. Exam questions will be worded differently. Exams may also contain questions not listed here.

1. Explain why weeds are not a separate category of plants
2. Give 5 characteristics that weeds often have
3. Name 5 problems with weeds in Agriculture 
4. Name the 4 morphological regions of plants
5. Define ‘plant tissue’
   1. What is vascular tissue?
6. what is the ‘cell’ in terms of weed control?
7. Indicate a few ways that a cell might be destroyed or disrupted
8. Differentiate between the ‘apoplast’ and ‘symplast’?
9. Give general definitions of Photosynthesis and Respiration.
   1. How does this relate to weed management?
10. Distinguish between ‘growth’ and ‘development’.
11. Define ‘regeneration’
    1. How does this relate to weed management?
    2. Indicate the 4 general weed types (lifecycle and family)
       1. Where do each need to be destroyed to prevent regeneration?
    3. How might weeds be classified?
    1. Indicate a use for each method of classification
    4. Name 3 turf weeds favored by compacted soils.   By wet soils.   By dry soils
    5. Discuss a few turf weed issues
    6. Why are athletic fields more prone to problems?
    7. Discuss a few issues with athletic turf (season and wear)
    8. Name 3 general ways to control grass weeds in turf.
    9. How do pre-emergent herbicides prevent weeds in turf?
    1. Indicate 3 practices to follow with pre-emergent herbicides in turf.
    10. During which months is pre-emergent control of summer weeds best practiced? 

         

    11. Discuss a couple of weed issues/problems with row crops.
    12. What questions about the weeds need to be addressed for row crop weed control?
    13. How many weeds/ft² will cause yield losses? (Thought)

         

    14. Discuss a few weed issues/problems with forages.
    15. Why not grow nutritious weeds for forage?
    16. Discuss the issues surrounding poisonous weeds in forages.
    17. What management practices will increase weeds in forages and why?
    18. What approach will reduce weeds?
    1. Indicate a few practices that will accomplish that.
    19. In general, how does the seed size of weeds compare to that of crops?
    20. What is the “seed bank”?
        1. What are 2 causes for the seed density to be so high?
        2. What are the implications for maintaining weed management?
         
    21. Indicate 6 means for seed dispersal
    22. What does it mean for a seed to be “dormant”?
    23. What conditions figure into seed germination?
        1. What special conditions do some weed seed need for germination?
        2. For weeds with Asexual reproduction, what is the primary cause of their reproductive capacity?
        3. Indicate 3 vegetative reproductive structures

            

        4. What is Ecology?
        5. Why is ecology studied in Weed Management?
        6. Give an example of how human influences impact weed ecology
        7. List a few considerations for crop and weed interactions
        8. Why does crop selection affects the ecological balance?

            

        9. Why does disruption of the environment usually have worse impact on the crop?
        10. Indicate the 3 general aspects of the plant environment
        11. What are the 3 primary levels of a hierarchal ecological description?
            1. Give an example of each.
        12. How can coexistence occur in a community?
        13. What happens to the ‘hole’ created though successful weed control?
        14. How might non-plant organisms fit into a community?
        15. When does competition occur?
        16. Indicate specifically how well weeds compete for fertilizer, water and light?
        17. What 3 Weed Population characteristics are important in competition?
        18. Name 4 above-ground and 4 below-ground competitive physical characteristics

             

        19. How does weed density affect crop production?
            1. What is (or is not) the nature of the relationship?
        20. What 2 factors are important in determining the affect of the duration of competition?
        21. What 2 economic questions must be answered to make a decision on weed management?