The aim of practical part of the thesis was to evaluace the potential and the current weeds inflestation on eacha creof winter wheat and winter rape. Together Comparethe the intensity of weed inflestation between individual hunts and crops. At anactual weeds inflestation in crops of winte rwheat the most species occurred was Veronica persica a Stellaria media. Often times in the number of over 10 individuals per sqvare meter. Further there in smaller qvantities was represented Elytrigiarepens, Galium aparine, Laliumpurpureum, Tripleurospermum indium and other type s of weeds. From the results of a potential weed infestationis evident that stands of winter wheat and winter rape on all plots the most kind Chenopodium album. There fare , in or...