A SLOW-WILT OF PYRETHRUMS (CHRYSANTHEMUM COCCINEUM WILLD.) CAUSED BY A SPECIES OF CEPHALOSPORIUM
| ISSN: |
1365-3059
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| Source: |
Blackwell Publishing Journal Backfiles 1879-2005
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| Topics: |
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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| Notes: |
Isolations from pyrethrums (Chrysanthemum coccineum Willd.) affected by a slow-wilt disease demonstrated that there was a consistent association with a Cephalosporium sp. Inoculation of seedling pyrethrums followed by infection, the development of symptoms and re-isolation, showed that the organism was pathogenic.A randomized comparison of plants vegetatively propagated from inoculated and non-inoculated stocks of pyrethrum demonstrated that the vigour of infected plants, as measured by the numbers of flowering heads produced, was reduced and also showed that the disease could spread laterally from infected to healthy plants.The fungus in the Cephalosporium stage was similar to C. chrysanthemi but it also produced, sparsely in culture and more frequently on autoclaved pyrethrum stems, pycnidia referable to the genus Deuteroplioma.
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| Type of Medium: |
Electronic Resource
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| URL: |