Fungal diseases in winter oilseed rape

alternaria botrytis cinerea brassica napus czech republic enfermedades fungosas erysiphe fungal diseases leptosphaeria maculans maladie fongique mildews mildiou oidium mildiu moho moisissure morbidite morbidity morbosidad moulds mycosphaerella brassicicola peronospora parasitica pseudocercosporella pyrenopeziza brassicae rhizoctonia solani sclerotinia sclerotiorum symptome symptoms verticillium dahliae