Abstract:
In greenhouses, tomatoes in the Ist crop cycle but frequently in the IInd one, are attacked by Cladosporium fulvum Cooke, patogene produding "the brown spot disease" on tomatoes leaves.
From sick material coming from many hot-houses of the country, there have been taken conidia which were used in investigations to establish the Cladosporium fulvum races.
There were taken into account the age of plants when inoculated and the environment.
Plants testing and selection were made by the method foreseen by Kerr and Bailey (1966).
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