EN
The aim of the paper is to estimate the effect of the application of biostimaltors Asahi SL, Sunagreen and Hergit on the growth of Fusarium poae, F. oxysporum, F. culomorum, Gibberella avenacea, Gibberella zeae, Alternaria alternata, Rhizoctonia solani and Sclerotinia sclerotiorum. Fungi was isolated from infested stem of winter oilseed rape. The experiment was conducted in 2010–2011. The biostimulators were applied in sixth combination: control (0 dm3/ha), 0.2, 0.4, 0.6, 0.8 and 1 dm3/ha. The results of the experiment revealed that the application of Asahi SL, Sunagreen and Hergit biostymulators and inhibited mycelium growth of tested fungi on depending on the fungus species and applied dose.