"Narcissus Disease     Problems"

Florist Home :: Flower Guides :: Narcissus Disease Problems

Blue mold is a storage problem and is worse on injured bulbs. The disease is most likely in moist storage conditions. This disease is caused by Penicillium sp.

Crown rot covers bulbs with layers of coarse white mold. Remove infected plants and avoid infested soil for 2 to 3 years.

Basal rot causes a decay starting at the roots or bases of the scales, and spreads upwards inside the bulb. The plants are dwarfed and the blossoms abnormal. The disease is caused by Fusarium oxysporum.

Fire causes spotting and rotting of flowers in humid weather. The disease spreads and rapidly destroys the leaves. The symptoms on leaves are dark reddish, elongated, brown spots. Rake up and destroy old foliage. The causal organism is Sclerotinia polyblastis.

Leaf spot causes large spots or blotches on the leaves.The leaves wither and die. The bulbs lack nourishment due to the premature death of leaves. Remove and destroy plants with diseased foliage.

Smolder rots the foliage and flowers in cold, wet seasons. The leaves are stuck together when they emerge and infected bulbs rot in storage. Remove and destroy infected plants.

Root rot causes leaf yellowing and stunting and withering of plants. The roots have yellowish or brown discolored stripes and decayed regions. The bulbs remain sound. This disease is more of a problem where narcissi have been planted for several years.

Leaf scorch causes blighted leaf tips to be separated from healthy portions by a yellow area. The secondary infection on the lower leaves is minute, water-soaked or yellowish spots, which become raised, scabby and reddish. The flower stalks and flowers may be spotted.

---

If you want to send flowers, roses, sympathy flowers or a gift basket please click on one of the links below to transfer to the appropriate page.

This information kindly supplied by Michigan State University Extension, Ornamental Plants.

AA-Florist.com