Abstract
Abstract A description is provided for Alternaria dianthicola . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dianthus barbatus, D. caesius, D. caryophyllus . Plantain ( Musa puradisiaca ) has also been recorded as a host. Plants of Gypsophila have been infected successfully after being inoculated with this fungus. DISEASE: Carnation bud-rot. Affected flower buds can turn brown and shrivel without opening or when open develop olive-brown patches where the conidia are produced. Stems and leaves may also be attacked, developing pale yellow-brown dark bordered spots. GEOGRAPHICAL DISTRIBUTION: Africa: Malawi (43, 877), South Africa, Zambia, Zimbabwe. Asia: Bhutan, Malaysia, Thailand. Australasia & Oceania: New Zealand. Europe: Austria, Cyprus, Denmark, France, Germany, Italy, Romania, The Netherlands. Central & South America: Brazil (43, 688), Chile, Jamaica. North America: USA. TRANSMISSION: By wind dispersal of airborne conidia.
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