Biology
Botrytis cinerea is characterized by abundant hyaline conida (asexual spores) borne on grey, branching tree-like conidiophores. The fungus also produces highly resistant sclerotia as survival structures in older cultures. It overwinters as sclerotia or intact mycelia, both of which germinate in spring to produce conidiophores. The conidia are dispersed by wind and rain-water and cause new infections.
A considerable genetic variability has been observed in different Botrytis cinerea strains (polyploidy).
Gliocladium roseum is a fungal parasite of Botrytis cinerea.
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