Narcissus (Daffodil): Basal rot categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Diseases Ornamentals revision date: 2023-02-07 12:00 Narcissus basal rotPhoto by: R.S. Byther Biology Basal rot of narcissus is caused by a soilborne fungus. Bulbs usually develop the rot during storage. The infection begins at wound sites or at the base of the bulb in the […]
Narcissus (Daffodil): Fire categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Diseases Ornamentals revision date: 2023-02-08 12:00 Narcissus firePhoto 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 […]
Narcissus (Daffodil): Leaf scorch categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Diseases Ornamentals revision date: 2023-02-08 12:00 Narcissus leaf scorchPhoto by: R.S. Byther Biology Leaf scorch is caused by a fungus that survives in the necks of the bulbs (thus infecting emerging leaves) and also in infected foliage. Leaf tips develop yellow-brown to reddish elongate spots […]
Narcissus (Daffodil): Stem and bulb nematode categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Diseases Ornamentals revision date: 2023-02-07 12:00 Narcissus nematode damagePhoto by: R.S. Byther Biology Nematodes are tiny (often microscopic), parasitic worms that live in the soil and in infected plant parts. The stem and bulb nematode of narcissus feeds mainly on aboveground portions of […]
Narcissus (Daffodil): Virus diseases categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Diseases Ornamentals revision date: 2023-02-07 12:00 Narcissus yellow stripe virusPhoto by: R.S. Byther Biology While many viruses infect narcissus, two virus diseases (Yellow Stripe and White Streak) are common in the Pacific Northwest. Yellow Stripe is characterized by the white mottling or streaking of the […]
Narcissus (Daffodil): Narcissus bulb fly categories: Bulbs Narcissus (Daffodil) Narcissus (Daffodil) Insects Ornamentals revision date: 2023-02-07 12:00 Narcissus bulb flyPhoto by: R.S. Byther Biology The adult narcissus bulb fly is about 1⁄2″ long and closely resembles a small bumblebee. The female lays eggs near the bulbs in early summer. The hatching maggots burrow into the […]