COMPOSITIONS CONTAINING FLUOPYRAM FOR CONTROL OF NEMATODES Russian patent published in 2022 - IPC A01N43/40 A01N25/30 A01P5/00 

FIELD: agriculture.

SUBSTANCE: invention relates to new compositions, a method for producing these compositions and their use for combating nematodes. A composition of a suspension concentrate for combating nematodes contains a combination of a) a compound of the formula (I)

,

where the compound (I) has a particle size Dv90 of less than 5.0 mcm, and b) at least one polyalkyleneoxide block-copolymer of the formula (II)

,

where in the compound of the formula (II), x, z are from 2 to 140, and y is from 15 to 80. The method for producing the composition includes obtaining a gel-thickener at the first stage by mixing of a fraction from 100 to 250 g/l of water, a rheological property modifier (d), biocides (e), all but except a fraction from 5 to 40 g/l of copolymer (b) and a fraction from 0.5 to 3 g/l of an anti-foaming agent. At the second stage, a pre-ground suspension is obtained by mixing components c), d) and the specified fraction from 5 to 40 g/l of the component b) that was not used at the first stage, and e), which is one or more other formulants selected from a group including antifreeze, dye, pH-regulators, buffers, stabilizers, crystal growth inhibitors or nutritional microelements, and the specified fraction from 0.5-3 g/l of the anti-foaming agent that was not used at the first stage in the remaining water. At the third stage, a component a) is added to the pre-ground suspension and mixed using a rotor-stator mixer until reaching a particle size of the component a) of less than 50 mcm. At the fourth stage, the pre-ground suspension is milled in a ball mill containing abrasive material g) with a ball size from 0.3 to 0.75 mm. At the fifth stage, the gel-thickener obtained at the first stage is added during mixing to the milled pre-ground suspension obtained at the fourth stage. In this case, one or more non-ionic surfactants or dispersing auxiliary agents and/or at least one anionic surfactant or dispersing auxiliary agent is used as c).

EFFECT: invention allows for obtaining a suspension concentrate composition with improved efficiency in combating nematodes for the protection of agricultural crops.

12 cl, 13 tbl