The invention relates to a novel herbicide showing excellent herbicidal effects, which has a wide application range including agricultural and non-agricultural fields and various application methods including soil treatment and foliage treatment.According to the invention, a pyrazole compound is claimed represented by the formula (I) or its salt:,wherein R1 is ethyl, R2 is a hydrogen atom, R3 is methyl, R4 is methyl, R5 is methoxyethoxy, R6 is methylsulfonyl and A is -CH(CH3)-.At the same time, it is claimed a process for the production of pyrazole compound with the formula (I), a herbicide containing it as an active ingredient and a method for controlling undesired plants or inhibiting their growth, by applying a herbicidally effective amount thereof to the undesired plants or to a place where they grow.Invenţia se referă la un erbicid nou, ce manifestă acţiune erbicidă excelentă şi are un domeniu de aplicare vast, inclusiv pe suprafeţe agricole şi neagricole, şi la diverse metode de aplicare, inclusiv tratamentul solului şi tratamentul foliar.Conform invenţiei, se revendică un compus de pirazol, reprezentat prin formula (I), sau o sare a sa:,unde R1 este etil, R2 - un atom de hidrogen, R3 - metil, R4, - metil, R5 - metoxietoxi, R6 - metilsulfonil şi A - -CH(CH3)-.Totodată, se revendică un procedeu de obţinere a compusului de pirazol cu formula (I), un erbicid care îl conţine în calitate de ingredient activ şi o metodă de combatere a plantelor nedorite sau de inhibare a creşterii lor prin aplicarea unei cantităţi efective a compusului revendicat asupra plantelor nedorite sau la locul creşterii lor.Изобретение относится к новому гербициду, который проявляет отличное гербицидное действие и имеет широкую область применения, включительно на сельскохозяйственных и несельскохозяйственных площадях, и к различным методам применения, включительно обработку почвы и обработку листвы.Согласно изобретению, заявляется соединение пиразола, представленное формулой (I), или его
