Decreasing of diseases harmfulness on winter rapeseed

The researches on search of optimal terms for application of fungicide folicur (active ingredient tebuconazole) were conducted with winter rapeseed cultivar Meteor (type 00) in VNIIMK in 2008-2009 to decrease harmfulness of the most dan-gerous diseases of winter rapeseed. The most biological efficiency of folicur of white rot and Alternaria blight was registered at application of rapeseed sowings dur-ing budding phase (76.9 and 83.7%, respectively), of Phoma rot and Fusarium wilt - in phase of rosette (54.2 and 68.0%, respec-tively). Reserved yield of winter rapeseed at folicur application in phase of rosette (in autumn) was 0.3 t ha-1 in 2008, 0.48 t ha-1 in 2009, in phase of budding - 0.49 and 0.37 t ha-1, respectively. The obtained data allows to recommend this preparation for application in doze 1 l ha-1 of the four above-mentioned diseases.