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Caption: Narcissus fire
Photo by: R.S. Byther
  
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Narcissus (Daffodil) : Fire
(revision date: 6/22/2015)


Biology
Narcissus fire is a fungal disease which affects the petals and leaves, but does not affect the bulb. It is favored by warm, humid weather and can spread very quickly under these conditions. Flowers are attacked first, with watersoaked spots appearing at the margins and enlarging rapidly. The spots later turn brown and wither. Leaf infections follow flower infections. Initial leaf symptoms include development of yellow, elongate spots near leaf tips. The centers of the spots turn grayish or brown as the spots enlarge. The leaf above the infection point dies and droops. The fungus survives in infected plant tissues and on plant debris in the soil.
Management Options

Non-Chemical Management
  • Rotate out of daffodils for two years.
  • Remove and destroy flowers and leaves as soon as infection begins.
  • Clean up and destroy or discard (do not compost) all plant debris.
Select non-chemical management options as your first choice!

Chemical Management


Best when used with cultural controls. Apply fungicides to protect new growth. Make two (2) applications, in late March and early April.

Listed below are examples of pesticides that are legal in Washington. Always read and follow all label directions.
  • Bonide Fung-onil Multi-Purpose Fungicide Conc
    Active ingredient: chlorothalonil  |  EPA reg no: 60063-9-4
  • Bonide Infuse Systemic Disease Control Lawn & Landscape
    Active ingredient: thiophanate methyl  |  EPA reg no: 53883-183-4
  • This list may not include all products registered for this use.
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Caption: Narcissus fire
Photo by: R.S. Byther