Safe and Effective Use of Pesticides, 3rd Edition CHAPTER 04

  1. Groundwater contamination is a problem when using persistent pesticides.  T OR F
    T
  2. Pesticides that drift from the target site can cause injury to nontarget organisms.  T OR F
    T
  3. Applying pesticides to an unfamiliar site can result in contamination of nearby sensitive areas.   T OR F
    F
  4. Point source pollution comes from pesticides that have been spilled over a wide area.   T OR F
    T
  5. Nonpoint source pollution comes from pesticides that move into streams or groundwater following a broadcast application to a large area.   T OR F
    T
  6. Direct channel pollution can from come from washing equipment and dumping the rinse water close to a well.   T OR F
    T
  7. 2.1  A measure of the ability of a pesticide to dissolve in a solvent.




    B) solubility
  8. 2.2   The process whereby a pesticide binds to soil particles.




    D) adsorption
  9. 2.3   The ability of a pesticide to remain present and active in its original form for an extended period before breaking down.




    D) persistence
  10. 2.4   The tendency of a pesticide to turn into a gas or vapor.




    C) volatility
  11. 3.1   Pesticides applied ass small droplets when nozzles are too far from the target.

    spray drift
    vapor drift
    particle drift
    runoff
    leaching
    Spray drift
  12. 3.2   Volatile pesticides applied when air temperatures are high and soil is dry and sandy.

    spray drift
    vapor drift
    particle drift
    runoff
    leaching
    Vapor drift
  13. 3.3   Dust formulations applied just before or during windy conditions.

    spray drift
    vapor drift
    particle drift
    runoff
    leaching
    Particle drift
  14. 3.4   Soluble pesticides applied just before heavy rain.





    A) runoff
  15. 3.5   Persistent pesticides applied to the soil.





    A) leaching
  16. Soil conditions are pesticides more likely to leach through soil?

    a. heavy clay soil, low organic matter, groundwater shallow.
    b. heavy clay soil, high organic matter, groundwater deep.
    c. sandy soil, low organic matter, groundwater shallow.
    • sandy soil
    • low organic matter
    • groundwater shallow
  17. Which of the following may produce a pesticide residue on a crop that exceeds legal tolerances?



    A. allowing pesticide residue drift onto the crop from a nearby area.
  18. What is the definition of pesticide residue?



    A. what remains on treated surfaces for a time after application.
  19. What contributes to buildup of pesticide residues?

    a. misinterpreting the weather forecast and making your application just before heavy rain.
    b. agitating a pesticide mixture too much before and during your application.
    c. failing to account for organic matter content of soil before determining the correct application rate.
    failing to account for organic matter content of soil before determining the correct application rate.
  20. What causes pesticide residues to accumulate in an area?

    a. applying over a large application site
    b. applying the same pesticide for many years to the same site.
    c. applying several different pesticides in a short time to the soil.
    applying the same pesticide for many years to the same site
  21. How can pesticide contaminate groundwater?

    a. Geological layers at site are made up of permeable gravel deposits.
    b. Aquifers located miles away from application site.
    c. Groundwater far from surface under many layers of thick clay.
    Geological layers at site are made up of permeable gravel deposits.
  22. Pesticides cause indirect harm to nontarget organisms by _

    a. leaving unsightly residues on surfaces.
    b. altering their food sources or habitats.
    c. increasing secondary pest infestations.
    altering their food sources or habitats.
Author
ianquinto
ID
345625
Card Set
Safe and Effective Use of Pesticides, 3rd Edition CHAPTER 04
Description
Safe and Effective Use of Pesticides, 3rd Edition CHAPTER 04
Updated