EN
The assessment of disease occurrence on winter wheat was performed in 2005–2007 at the Experimental Station Osiny (Institute of Soil Science and Plant Cultivation, Pulawy, Poland). Since 1998 wheat was cultivated in cereal crop rotation under three technologies varying in production intensity. The level of production intensity was diversified by plant protection strategy, and had an impact on the healthiness of winter wheat. Roots’ infection by Geumannomyces graminis varied significantly between technologies according to plant production systems extensive or intensive. No significant differences were stated among technology treatments. Infection of wheat by the stem base disease did not differ between the tested technologies. The percentage of leaf area infected by wheat disease in all technologies was low.