Agricultural Pesticides Application Quiz
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Questions and Answers

What is the primary requirement for a chemical to be used as a pesticide?

  • It should be stable and tenacious (correct)
  • It should be inexpensive
  • It should be effective for a long time
  • It should be compatible with other pesticides

    • What is the main concern with applying chemical pesticides over a large area?

  • It may not be compatible with other pesticides
  • It may adversely affect the biological equilibrium of the area (correct)
  • It may be too expensive
  • It may not be stable under normal conditions

    • What is the key requirement for pesticides that are mixed and applied simultaneously?

  • They should be applied accurately and effectively
  • They should be inexpensive
  • They should be compatible and not reduce each other's effectiveness (correct)
  • They should be stable under normal conditions

    • What is the main benefit of using broad-spectrum/non-selective pesticides?

    <p>They are active on a multitude of different pests</p> Signup and view all the answers

    What is the main characteristic of narrow-spectrum/selective pesticides?

    <p>They are only active on certain types of pests</p> Signup and view all the answers

    What is the primary economic consideration for using pesticides?

    <p>They should be as inexpensive as possible</p> Signup and view all the answers

    What is the abbreviation for suspension concentrate?

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

    Which type of formulation is characterized by slow release of the active ingredient?

    <p>Microencapsulated (M or ME)</p> Signup and view all the answers

    What is the main feature of ready-to-use aerosol formulations?

    <p>Self-contained units</p> Signup and view all the answers

    Which formulation type is often used for pest control operations similar to Emulsifiable Concentrates (ECs)?

    <p>Flowable (F)</p> Signup and view all the answers

    What might cause residues to remain longer than expected on treated plants or surfaces?

    <p>Dry or cool weather conditions</p> Signup and view all the answers

    Which type of formulation uses an inert pressurized gas to propel pesticide through a fine opening?

    <p>Aerosol (A)</p> Signup and view all the answers

    What type of pesticide is effective for the control of sucking insects?

    <p>Contact poison</p> Signup and view all the answers

    What is the mode of action for stomach poisons?

    <p>Absorbed through the digestive tract</p> Signup and view all the answers

    How do translaminar pesticides work?

    <p>Forming a reservoir of active ingredient within the leaf</p> Signup and view all the answers

    What is the method of application for systemic pesticides?

    <p>Applying as a drench or granule to the growing medium</p> Signup and view all the answers

    Which type of pesticide is effective against insects with chewing-type mouthparts?

    <p>Stomach poison</p> Signup and view all the answers

    What is the main difference between contact poisons and systemic pesticides?

    <p>Contact poisons are applied directly to the insect's body, while systemic pesticides are applied to the growing medium.</p> Signup and view all the answers

    What is the main reason why pesticides can be incompatible when mixed?

    <p>Their pest control activity changes</p> Signup and view all the answers

    Which type of adjuvant helps to reduce excessive foaming of spray mixtures?

    <p>Antifoaming agent</p> Signup and view all the answers

    What should be done first when using a buffer or pH modifier?

    <p>Ensure the water is pH neutral or slightly acidic</p> Signup and view all the answers

    Which of the following is NOT a reason for pesticide incompatibility?

    <p>Increased effectiveness</p> Signup and view all the answers

    What do compatibility agents help with?

    <p>Mixing pesticides effectively</p> Signup and view all the answers

    When should you consult the pesticide product label regarding adjuvants?

    <p>Before using the adjuvant</p> Signup and view all the answers

    What type of surfactants are most often used with contact pesticides?

    <p>Anionic surfactants</p> Signup and view all the answers

    Which type of surfactants should not be used as stand-alone surfactants due to potential phytotoxicity?

    <p>Cationic surfactants</p> Signup and view all the answers

    What type of surfactants are often used with systemic products to help pesticides penetrate plant cuticles?

    <p>Nonionic surfactants</p> Signup and view all the answers

    What does acute exposure refer to in the context of pesticide poisoning?

    <p>A one-time contact with a pesticide for 24 hours or less</p> Signup and view all the answers

    How is chronic toxicity studied in experimental animals?

    <p>By exposing them to a pesticide for more than three months</p> Signup and view all the answers

    Which type of surfactants are compatible with most pesticide products?

    <p>Nonionic surfactants</p> Signup and view all the answers

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