Iha Education October Webinar - Syngenta - Fungicides

10 Questions | Total Attempts: 76

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Webinar Quizzes & Trivia

This Quiz was created to review the Syngenta webinar presentation on October 15th 2009.


Questions and Answers
  • 1. 
    Temperatures most favorable for Downy Mildew development are:
    • A. 

      35 - 55 F

    • B. 

      50 - 72 F

    • C. 

      65 - 85 F

    • D. 

      None of the above

  • 2. 
    Crops that are most prone to Downy mildew include:
    • A. 

      Begonia, Pentas, Lantana, Buddleia, Poinsettia

    • B. 

      Dahlia, Penstemon, Heuchera, Geraniums, Bergenia

    • C. 

      Phlox, Rose, Salvia, Coleus, Buddleia, Alyssum

    • D. 

      Petunia, Marigold, Chrysanthemum, Zinnia, Ageratum

  • 3. 
    Symptoms of Downy Mildew infections include:
    • A. 

      Yellow, tan or reddish blotch areas on the topside of the leaves

    • B. 

      Distorted new growth

    • C. 

      Fuzzy mat-like growth on the underside of the leaves

    • D. 

      All of the above

    • E. 

      A & B

  • 4. 
    All Downy Mildew fungi are capable of infecting all ornamental crops:
    • A. 

      True

    • B. 

      False

  • 5. 
     Both Downy Mildew and Botrytis thrive when the relative humidity is:
    • A. 

      Greater than 85%

    • B. 

      Greater than 95%

    • C. 

      Lower than 75%

    • D. 

      Relative humidity does not affect these fungal pathogens

  • 6. 
    A fungicide rotation for prevention of Downy Mildew would include:
    • A. 

      Chipco 26019, Eagle/Hoist, Decree, Cleary’s 3336/OHP6672

    • B. 

      Heritage, Subdue Maxx, Stature SC, Protect DF/Dithane 75DF

    • C. 

      Daconil, Medallion, Subdue Maxx, Terraguard

    • D. 

      Strike, Banner Maxx, Decree, Medallion

  • 7. 
    Botrytis spores occur naturally in many growing environments and threaten crops when conditions are:
    • A. 

      Hot and Dry

    • B. 

      Cool and Wet

    • C. 

      Hot and Wet

    • D. 

      Warm and Dry

  • 8. 
     Botrytis can infect:
    • A. 

      Roots

    • B. 

      Stems, old leaves and flowers

    • C. 

      Young shoots and emerging leaves

    • D. 

      All of the above

    • E. 

      B & C

  • 9. 
     The best way to prevent infections by Botrytis:
    • A. 

      Reduce relative humidity below 85%

    • B. 

      Space plants for good air movement

    • C. 

      Apply appropriate preventive fungicide treatments after pinching or prior to storage or shipping when conditions are conducive for disease development

    • D. 

      All of the above

  • 10. 
     A fungicide rotation for prevention of Botrytis will include:
    • A. 

      Stature SC, Kocide, Subdue Maxx, Dithane

    • B. 

      Decree, Medallion, Daconil, Chipco

    • C. 

      Terraguard, Banner Maxx, Eagle, Aliette

    • D. 

      All of the above

    • E. 

      A & C

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