Biocontrol Agents of Weeds Quiz
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Questions and Answers

What is the objective of biological weed control?

  • To eradicate all weeds from the area
  • To promote the growth of weeds
  • To reduce the density of a particular weed to a tolerable level (correct)
  • To introduce new types of weeds
  • Why are popular methods of weed control such as mechanical and chemical considered problematic?

  • They are easily accessible to everyone
  • They are ineffective in controlling weeds
  • They have no impact on the environment
  • They are expensive, energy and labor intensive, and require repeated applications (correct)
  • What is the main focus of this module on biocontrol agents?

  • To promote the use of chemical herbicides
  • To study the growth patterns of weeds
  • To describe a way to control weeds using biocontrol agents (correct)
  • To discourage the use of any weed control methods
  • What are the learning outcomes of this module related to biocontrol of weeds?

    <p>a, b, and c only</p> Signup and view all the answers

    What is the definition of weeds as provided in the text?

    <p>Plants growing where they are not wanted</p> Signup and view all the answers

    Biological control of weeds involves the deliberate use of natural enemies to reduce the density of a particular ______ to a tolerable level

    <p>weed</p> Signup and view all the answers

    Weeds are generally defined as plants growing where they are not ______

    <p>wanted</p> Signup and view all the answers

    Popular methods of weed control such as mechanical and chemical are known to be: expensive, energy and labor intensive and require repeated ______

    <p>applications</p> Signup and view all the answers

    In this module, it describes a way to control weeds using biocontrol ______

    <p>agents</p> Signup and view all the answers

    Differentiate between biotic and abiotic factors in affecting success in ______

    <p>biocontrol</p> Signup and view all the answers

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