Narcissus (Daffodil): Fire

categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Diseases Ornamentals

revision date: 2023-02-08 12:00

Narcissus fire symptoms.
Narcissus fire
Photo by: R.S. Byther

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

Use Integrated Pest Management (IPM) for successful plant problem management.

Non-chemical Management

Select non-chemical management options as your first choice!

  • 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.

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.

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

Approved Pesticides

Listed below are examples of pesticides that are legal in Washington. Always read and follow all label directions.