In 2004–2005 in Poland, Latvia and Czech Republic field exeperiments were conducted to determine the efficacy and selectivity of prosulfocarb (Boxer 800 EC), applied at 2 400 g/ha (3 l/ha), as compared to standard containing pendimethalin and isoproturon (Maraton 375 SC). Herbicides were soil-applied (wheat BBCH 00–07) and postemergence (wheat BBCH 12–13) in autumn. Soil-applied prosulfocarb was more effective when applied postemergence in controlling Gallium aparine, Stellaria media, Brassica napus and total dicotyledonous weeds. Prosulfocarb effectively controlled Apera spica-venti from herbicide treatment to winter wheat harvest. Prosulfocarb was safe for wheat and enabled winter wheat to get high grain yield.