AGROCHEMICAL COMPOSITION AND METHODS FOR ITS PRODUCTION AND USE Russian patent published in 2023 - IPC A01N31/04 A01N35/04 A01N41/10 A01N43/08 A01N43/28 A01N43/58 A01N29/04 A01N33/06 A01P13/00 

FIELD: agrochemical composition.

SUBSTANCE: agrochemical composition contains from 1 to 80 wt.% as a herbicidal substance: a combination of a phenylpyridazine derivative and triketone, from 10 to 80 wt.% of a solvent selected from the group including dioxolanes and esteramides and from 5 to 50 wt.% of a surface-active substances containing non-ionic and anionic surfactant in terms of the total weight of the agrochemical composition. The solvent is a dioxolane of formula I

,

in which R1 and R2 are independently selected from the group consisting of linear or branched C1-C12 alkyl, C4-C12 cycloalkyl or aryl, R3 is H, linear or branched alkyl, cycloalkyl or a -C(=O)R₄ group where R₄ means a linear or branched alkyl or cycloalkyl or esteramide of formula IIR₅OOC-A-CONR₆R₇ (II) in which R₅ means a radical selected from a group comprising saturated or unsaturated, linear or branched, optionally cyclic, optionally aromatic hydrocarbon-based radicals with an average number of carbon atoms in the range from 1 to 36; R₆ and R₇, which may be the same or different, are all radicals selected from the group consisting of saturated or unsaturated, linear or branched, optionally cyclic, optionally aromatic, optionally substituted hydrocarbon-based radicals having an average number of carbon atoms in the range from 1 to 36, with the proviso that R₆ and R₇ may optionally together form a ring element which is optionally substituted and/or which optionally contains a heteroatom; and A is a linear or branched divalent alkyl radical with an average number of carbon atoms ranging from 2 to 12. The agrochemical composition is used in a method for controlling unwanted vegetation.

EFFECT: proposed agrochemical composition is highly stable in the presence of herbicides with different physical and chemical characteristics, has improved herbicidal properties due to the mutual joint action of these herbicides.

15 cl, 19 tbl