Phytosanitary monitoring of rapeseed diseases

In 2000-2009 as a result of the monitoring of the phytosanitary state of summer and winter rapeseed fields, the representatives of 4 classes of pests were detected ( Deuteromycetes, Zygomycetes, Oomycetes and Ascomycetes). The dependence of frequency of occurrence of the following pathogens from HTK (Hydrolitic Temperature Coeffi-cient) and relative humidity of the air in fields of summer rapeseed was observed: Erysiphe communis Grev., Fusari-um oxysporum (Schlecht.), Sclerotium bataticola Taub. and pests of the type Alternaria in fields of winter rapeseed: Albugo candida (Pers.) Kuntze, Botrytis cinerea pers. and Phoma lingam (Tode) Desm. The dependence of the fre-quency of occurrence of other pathogens in fields of summer and winter rapeseed from meteorological conditions was not found.