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Abstract

Cultivated area of cereal crops in Belarus is up to 35 %. As many as 61 seed dressers and 100 fungicides are used for protection of cereals against a number of diseases in the country. Eleven chemical groups of fungicides are exploited in Belarus: phenylamides, methyl benzimidazole carbamates, aryl-phenyl-ketones, SDHI, QoI, anilino-pyrimidines, azanaphthalenes, phenylpyrroles, DMI, amines (morpholines), dithiocarbamates. Their classification and modes of actions are the clue to choose suitable active ingredients according to the current phytopathological situation, weather conditions etc. Classification of fungicides is given based upon chemical structure, target sites, mobility within the plants and action on fungal development inside the plant tissue.