Botrytis (anamorphic genus)
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Author(s): Paul Bachi (University of Kentucky Research and Education Center)
Source: IPM Images
Botrytis P. Micheli ex Haller 1768
This genus contains about 25 species which cause moulds, rots and/or blight diseases. Several species are economically important, above all the very common grey mould pathogen, Botrytis cinerea. This species infects grapevine and a large variety of other crops. A number of species (e.g. Botrytis allii) infect Allium crops, causing neck rot and other diseases.
The primary inoculum source are conidia which are one-celled, elliptical and disperse by wind and rain. Many species form sclerotia which overwinter. These produce apothecia and ascospores when they germinate. In other species the mycelia overwinter in plant debris. Sexual forms have been previously described under the genus Botryotinia. Typically, the species form grey, powdery colonies, with brown conidiophores and glistening heads of grey conidia.
Type species: Botrytis cinerea
Currently, the following species of Botrytis have been entered into the system:
