FIELD: organic chemistry, agriculture.
SUBSTANCE: invention relates to herbicidal agent containing synergic amounts of A) one or more kinds of sulfonylurea of general formula I 
1 and/or salts thereof, wherein R1 represents C2-C4-alkoxy or CO-Ra (Ra represents C1-C4-alkoxy or NRbRc, wherein Rb and Rc are the same or different and represent C1-C4-alkyl); R2 represents halogen or (CH2)nNHRd (n = 0 or 1; Rd is formyl or SO2Re, wherein Re is C1-C4-alkyl) with the proviso, that when R1 represents C2-C4-alkoxy, R2 also may be hydrogen; m = 0 or 1; X and Y are independently the same or different and represent C1-C6-alkyl or C1-C4-alkoxy; Z represents CH or N; B) one or more vegetable oils. Additionally agent contains antidote namely isoxadiphenethyl or mephenpyrdiethyl in antidote/herbicide weight ratio from 1:1 to 3:1. Also are disclosed method for production of herbicidal agent by mixing substance of formula 1 with one or more vegetable oils and method for controlling of adverse plants, wherein herbicidal agent is used for after-springing plant or plant part treatment or for treatment of cultivated areas.
EFFECT: agent with high herbicidal action and selectivity to agricultural plants.
