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Leaf scorch and neck rot in narcissus


, : Leaf scorch and neck rot in narcissus. Acta Horticulturae (47): 131-136

In the Netherlands a bulb rot, starting in the neck, has been reported in some cvs and is usually found during dry storage after lifiting. Botrytis narcissicola and Stagonospora curtisii have been isolated from diseased tissue, but it is not yet certain whether these fungi (separately or together) are equally responsible for the disorder.

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Related references

Creager, Don B., 1933: Leaf scorch of narcissus. Many vars. of commercially grown narcissus are subject to leaf scorch (Stagonospora curtisii), which results in death of the leaves 4-8 wks. prematurely. The initial symptoms appear as yellowish, reddish, or brown lesions that soon develop necroti...

McCain, A.; Pyeatt, L.; Pierce, L., 1980: Leaf scorch of Narcissus. This disease of Narcissus, Amaryllis and some related genera, caused by Stagonospora curtisii, may become severe under wet conditions. Infection may extend into the bulb and there can be appreciable damage in cut flower crops which remain in place...

Madhu Meeta, 1987: Leaf scorch of Narcissus. The occurrence of Stagonospora curtisii causing this disease at Solan in 1986 constitutes a new record for India.

Milltkan, C.R., 1940: Leaf scorch of Narcissus. Leaf scorch disease of Narcissus caused by Stagonospora curtisii, is recorded for the first time from Victoria, where it was observed on daffodils during the 1939 season. To reduce the spread of primary infection the bulbs should be immersed for o...

McCain, A.H.; Pyeatt, L.E.; Pierce, L., 1980: Leaf scorch of narcissus. Progress report. Field-grown Narcissus tazetta plants were sprayed to runoff with various fungicides at 2-week intervals from 8 November until 20 March for Stagonospora curtisii control. Dyrene (50% anilazine) at 2 lb/100 gal, captan 50% at 2 lb/100 gal and Fore (...

McCain, A.H.; Pyeatt, L.E.; Pierce, L., 1980: Leaf scorch on Narcissus. Progress report. In a fungicide spray trial with N. tazetta against Stagonospora curtisii the best results were obtained with Dyrene (50% anilazine) at 2 lb/100 gal, closely followed by 50% captan (2 lb and Fore (80% mancozeb) at 1.5 lb/100 gal.

Smith P.M., 1969: Narcissus m leaf scorch caused by stagonospora curtisii. Glasshouse Crops Research Institute Annual Report : 98-99

Lindquist, J.C., 1935: Leaf scorch of Narcissus and Jonquils (Stagonospora curtisii). The writer, following Creager and C. O. Smith, describes the symptoms, discusses the aetiology, and briefly indicates measures for the control of Stagonospora curtisii, the agent of leaf scorch of Narcissus pseudo-narcissus and N. tazetta, which w...

Haasis, F.A., 1934: Control of the Narcissus leaf-scorch under Long Island conditions. A considerable reduction in the number of primary leaf scorch (Stagonospora curtisii) infections on narcissus on Long Island is obtained by one hour's immersion of the bulbs in water, followed by a 30-minute dip in mercuric chloride 1 in 750...

Beaumont, A., 1950: Observations on narcissus leaf scorch in south-west England. Narcissus leaf scorch (Stagonospora eurtisii) is common in s.-w. England, where it causes economic damage resulting from flower spot and leaf decay. The many different vars. vary considerably in field susceptibility, a comparative measure of which...