Herbicidal composition and method for production thereof

FIELD: agriculture, in particular chemical agents for plant protection.

SUBSTANCE: sulfonylaminourea and phenoxyacetic acid derivatives-based herbicidal composition contains nonionic surfactant, anion-active surfactant sulfonol, kaolin as carrier, and carbon white. As sulfonylaminourea and phenoxyacetic acid derivatives it contains 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2-)-1-(2-chlorophenylsulphonyl)urea and 2-methyl-4-chlorophenoxyacetic acid sodium salt, respectively. Additionally composition contains triethanolamine or diethanolamine, disubstituted potassium phosphate as stabilizer in the component ratio of (mass %): 2-methyl-4-chlorophenoxyacetic acid sodium salt 55-72; 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2-)-1-(2-chlorophenylsulphonyl)urea 0.3-0.4; nonionnic surfactant 0.05-0.15; sulfonol 0.05-0.15; triethanolamine or diethanolamine 0.15-0.2; carbon white 0.37-1.5; disubstituted potassium phosphate 1.0-2.0; and balance: kaolin. Composition components are separately applied on carrier surface. More specifically triethanolamine or diethanolamine is separately mixed with kaolin; 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2-)-1-(2-chlorophenylsulphonyl)urea, and carbon white are separately mixed with kaolin; disubstituted potassium phosphate, nonionic surfactant, and sulfonol are separately mixed with kaolin; and 2-methyl-4-chlorophenoxyacetic acid sodium salt also is separately mixed with kaolin. Mixtures are conditioned for 24 h at room temperature and then are blended to provide mentioned above component ratio in product.

EFFECT: herbicidal composition of increased activity and deferred hydrolysis in wetted powder.

3 cl, 6 ex, 2 tbl

 

The invention can be used in agriculture to control weeds in cereal crops.

Known herbicide 2-methyl-4-chlorophenoxyacetate acid (2M-4), which is used for weed control in crops cereal crops.

Known herbicide 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-harfe-ylsulphonyl)urea-chlorsulfuron used against most broadleaf weeds in crops of cereals (Melnikov N.N. and other Pesticides and plant growth regulators. The Handbook. M.: Chemistry, 1995, S.112,189).

Known herbicide composition in the form of wettable powder (EN 2150834, 20.06.2000), containing as herbicide-active ingredients derived sulfonylureas and derived phenoxyalkanoic acid - sodium salt of 2,4-dichlorophenoxyacetic acid, surface-active substances (SAS) type ethoxylated fatty amine, vegetable and/or mineral oil. Preferred additives include anionic surfactants, nonionic surfactants, solid carrier, binder, filling agent.

The disadvantage of this drug is the hydrolysis derived sulfonylureas due to moisture introduced into the drug with commodity components, thereby reducing the mass fraction of active ingredient and reduce herbicide activity ven the operational forms.

The objective of the invention to prevent hydrolysis of chlorsulfuron in wettable powder and increase herbicide activity of the composition.

The problem is solved through the use of herbicide composition comprising as active ingredients derived sulfonylureas and derived phenoxyalkanoic acid, nonionic surfactant, anionic surfactant, a solid carrier white carbon black and kaolin, as derived sulfonylureas it includes 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-chlorophenylsulfonyl)urea, as derived phenoxyalkanoic acid - sodium salt of 2-methyl-4-chloro-phenoxyalkanoic acid as anionic surface-active substance - sulfonic acid, and optionally includes triethanolamine or diethylethanolamine, the stabilizer is potassium phosphate disubstituted, in the following ratio, wt.%:

Sodium salt of 2-methyl-4-chlorophenoxyacetic acid55-72
3-(6-methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-chlorophenyl-sulfonyl)urea0,3-0,4
Nonionic surfactant0,05-0,15
The sulfonic acid0,05-0,15
Triethanolamine or diethylethanolamineof 0.15-0.2
White black0,37-1,5
Potassium phosphate disubstituted1,0-2,0
KaolinRest

The problem is solved also due to the fact that is a separate drawing of the components on the surface of the carrier, namely, separately mix triethanolamine or diethylethanolamine and kaolin, separately mix 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-chlorophenylsulfonyl)urea, white carbon black and kaolin, separately mixed potassium phosphate disubstituted, nonionic surfactants, sulfonic acid and kaolin, separately mix the sodium salt of 2-methyl-4-chlorophenoxyacetic acid and kaolin, a day after keeping at room temperature, combine the products of mixing and stirred, and the mixture produced in quantities that provide the above ratio of the components in the product.

As nonionic surfactants in the composition used ethoxylated isononylphenol - neonol AF 9-12 or ethoxylated higher fatty alcohols - sintana DC-10, sintana ALM-10.

Example 1.

Mixed in a ball mill, 0.17 g of triethanolamine (tea) and 5 g of kaolin (stage 1). Separately, mix 0.33 g of chlorsulfuron, and 0.37 g of white carbon black, and 5 g of kaolin (phase 2). Separately mix 1,0 SC 2NRA4, 0.05 g of neonols AF 9-12, 0.05 g of sulfonic acid and 5 g of kaolin (stage 3). Separately mix 60 g of sodium salt 2M-4 and to 23.03 g of kaolin (step 4). Through the days of keeping at room temperature, combine the products of mixing and produce thorough mixing is obtained wettable powder (step 5). Leave the sample for storage at room temperature for 6 months, after which determine the content of chlorsulfuron in the composition by HPLC.

Example 2.

Analogously to example 1. The difference lies in the fact that the use of diethylethanolamine (DEEA) in an amount of 0.2 grams, sintana DC-10 - 0.1 g, chlorsulfuron - 0,38 g, sulfonic acid 0.1 g, white carbon - 1.0 g, sodium salt 2M-4 68 g, K2NRA4, 1.5 g, kaolin - of 28.72,

Example 3.

Analogously to example 1. The difference is that the tea used in the amount of 0.15 g, sintana ALM-10 - 0.1 g, chlorsulfuron 0.3 g of the sulfonic acid 0.1 g white soot - 0.5 g, sodium salt 2M-4 55 g, kaolin - 42,85,

Example 4.

Analogously to example 1. The difference is that the tea used in the amount of 0.2 g, neonol AF 9-12-0,15 g, chlorsulfuron 0.4 g of the sulfonic acid 0.15 g, white carbon 1.5 g, sodium salt 2M-4 - 72 g, K2NRA4- 2.0 g, kaolin -23,6,

Example 5.

Analogously to example 1. The difference is that the use of DEA in the amount of 0.15 g, sintana DC-10 - 0.1 g, chlorsulfuron - 0.36 g, sulfonic acid 0.1 g, white with the Zhu - 1.0 g, sodium salt 2M-4 65 g, K2NRA41.5 grams kaolin - 31,79,

Example 6 - the prototype.

Mixed in a single stage ball mill 0.33 g of nicosulfuron, and 0.37 g of white carbon black, 0.05 g Frigate, 0.05 g of sulfonic acid, 60 g of sodium salt of 2,4-D and 39,20 g of kaolin. Next, as in example 1 determine the content of nicosulfuron.

Example 7.

Field trials of herbicide formulations spend 6 months after their preparation in barley. Skilled plot littered the following weeds: white pigweed, wild radish, pink sow Thistle, bindweed, SYRIZA, picolinic, mountaineers and other Area of one plot of 10 m2the density of contamination of the site 150-170 PCs/m2. The herbicide treatment is carried out in the phase of tillering barley. The dose is 800 g / ha (A.I). Consideration of the effectiveness of the herbicide composition is carried out through 1 month after treatment by inhibition of weight wet weight of weeds removed with 1 m2plots, in comparison with control (without herbicide). A record harvest is carried out by continuous threshing barley. Prototype - herbicide composition according to the patent RU 2150834. Repetition is fourfold. The least significant difference NDS 095 considering harvest ±0,5 kg/ha

Presents data in table 1 show that the hydrolysis of chlorsulfuron is much slower in the proposed composition in comparison with the prototype in relation to nicoal the Rhone. Field experiments on barley (table 2) indicate that the composition has a higher herbicide activity. Yield increase of barley is 2.4÷3.4 t/ha, and the use of prototype - 12 t/ha

Table 2.

The results of field experiments on barley
no examplesDose of herbicide, g/haInhibition weight of weeds %The barley harvest
actualestimatedsynergismKg/ha±
2M-4Chloral Huron
17964,49785+1222,5+3,0
2-″-98-″-+1322,8+3,3
3-″--″-96-″-+11of 21.9+2,4
4-″--″-98-″-+1322,9+3,4
5-″--″-97-″-+1222,0+2,5
6-prototype2,4-Dnicosulfuron
-″--″-79-″--620,7+1,2
Standard-A79604819,8+0,3
Atala n-B04,472+0,6
20,1
Control
(without herbicides)19,5
Calculation of inhibition was performed according to the Colby formula, %:

IgA+B=Inga + IGB And the GA-Engb/100

1. Herbicide composition containing a surface-active substance, characterized in that it contains the sodium salt of 2-methyl-4-chlorophenoxyacetic acid, 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-chlorophenylsulfonyl)urea, nonionic surfactant, a sulfonic acid, triethanolamine or diethylethanolamine, white carbon, potassium phosphate disubstituted, kaolin under the following ratios, wt.%:

Sodium salt of 2-methyl-4-chlorophenoxyacetic acid55-72
3-(6-Methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-chlorophenylsulfonyl)urea0,3-0,4
Nonionic surfactant0,05-0,15
The sulfonic acid0,05-0,15
Triethanolamine or diethylethanolamineof 0.15-0.2
White black0,37-1,5
Potassium phosphate disubstituted1,0-2,0
KaolinRest

2. Herbicide composition according to claim 1, characterized in that as a nonionic surface-active substances it contains ethoxylated isononylphenol or ethoxylated higher fatty alcohols.

3. A method of obtaining a herbicide composition according to claims 1 and 2, in the with the operations of the individual mixing triethanolamine or diethylethanolamine and kaolin, separate mixing 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2)-1-(2-chlorophenylsulfonyl)urea, white carbon black and kaolin, a separate mixing potassium phosphate disubstituted, nonionic surfactants, sulfonic acid and kaolin, a separate mixing sodium salt of 2-methyl-4-chlorophenoxyacetic acid and kaolin, a day after keeping at room temperature the combination of products mixing and mixing and mixing produced in quantities that provide their content in the product according to claims 1 and 2.



 

Same patents:

FIELD: agriculture, herbicides.

SUBSTANCE: invention relates to herbicide composition based on derivative of sulfonylurea that comprises non-ionogenic surface-active substance, lignosulfonates as anion-active surface-active substance and highly dispersed amorphous silica as a carrier. Composition comprises chlorsulfuron as derivative of sulfonylurea and triethanolamine or diethanolamine additionally, and potassium dihydrogen phosphate as a stabilizing agent in the following ratio of components, wt.-%: chlorsulfuron, 18-22; non-ionogenic surface-active substance, 3-5; potassium dihydrogen phosphate, 9-12; triethanolamine or diethanolamine, 9-11; lignosulfonates, 3-10, and highly dispersed amorphous silica, the balance. Method involves mixing components in indicated ratios by steps for 3 stages. At the 1-st stage triethanolamine or diethanolamine is applied on surface of highly dispersed amorphous silica, at the 2-d stage - chlorsulfuron, and at 3-d stage - potassium dihydrogen phosphate, lignosulfonates and non-ionogenic surface-active substance. After keeping for 24 h at the room temperature mixing products from all three stages are combined. Invention provides enhancing stability of chlorsulfuron and biological activity of preparation based on thereof. Invention is designated for applying in agriculture.

EFFECT: valuable properties of herbicide composition.

4 cl, 2 tbl, 9 ex

FIELD: agriculture, in particular herbicide compositions.

SUBSTANCE: invention relates to weed controlling method for tolerant cotton crops using (A) road spectrum herbicides selected from group (A1) glufosinate (salt) and related compounds; (A2) glyphosate (salt) and related compounds; and (B) herbicides selected from group containing diurone, trifluraeline, linuron, and pendimethalin; lactofen, oxyfluoren, bispiribac and salts thereof, pyrithiobac and salts thereof; setoxydim, cyclosidim, and cletodim; wherein components (A) and (B) are used in synergistically effective ratio. Also are described herbicide compositions containing compound from group (A1) or (A2) and herbicide from group (B).

EFFECT: effective controlling of weeds in cotton crops.

9 cl, 12 tbl, 3 ex

FIELD: organic chemistry, agriculture.

SUBSTANCE: invention relates to new substituted thienyl(amino)sulfonylureas of formula I ,

wherein A represents nitrogen or methane; Q represents direct bond or imino; R1 represents fluorine, chlorine, bromine, unsubstituted C1-C4-alkyl, C1-C4-alkoxyl optionally substituted with halogen, unsubstituted C1-C4-alkylthio, or di(C1-C4-alkyl)amino; R2 represents hydrogen or C1-C4-alkyl. Compounds of present invention are useful as herbicide agents.

EFFECT: new compounds with herbicide activity.

5 cl, 11 tbl, 5 ex

FIELD: agriculture, in particular method for controlling of weeds.

SUBSTANCE: claimed method for controlling of weeds in tolerant maize cultures includes application of composition comprising (A) road spectrum herbicide from group (A1) glufosinate (salt) and analogs, (A2) glyfosate (salt) and analogs; (B) one or more herbicides from group (B1) cyanazin, alachlor, nicosulfurone, rimsulfurone, sulkotrion, mesotrion, and penthoxamid; (B2) pendimethalyne, methosulam, isoxaflutol, metribuzin, chloransulam, flumetsulam, linuron, florasulam, and isoxachlorotol; and (B3) bromoxinyl, chlorpyralid, tifensulfuron, MCPA (2-methyl-4-chlorophenoxyacetic acid), halosulfuron, and sulfosulfuron, wherein (A) and (B) components are in synergic effective ration. Also disclosed are herbicidal compositions including compound from group (A1) or )F2) and herbicide from group (B).

EFFECT: effective controlling of weeds in tolerant maize cultures.

6 cl, 55 tbl, 3 ex

FIELD: organic chemistry, agriculture, herbicide composition.

SUBSTANCE: invention relates to herbicide composition, containing conventional inert additives and mixture of a) herbicidically effective amount of substance satisfying the formula I [in formula R1 and R3 are the same or different C1-C4-alkyl; R4 and R5 together form groups of formulae: -C-R6(R7)-O-C-R8(R9)-C-R10(R11)-C-R12(R13)-(Z1), -C-R14(R15)-C-R16(R17)-O-C-R18(R19)-C-R20(R21)-(Z2), or -C-R22(R23)-C-R24(R25)-C-R26(R27)-O-C-R28(R29)-(Z3), wherein each R6-R29 is hydrogen; G is hydrogen or -C(X2)-X3-R31; X2 and X3 independently are oxygen; R31 is C1-C10-alkyl]; b) herbicidic synergic amount of at least one herbicide selected from group containing sulfonylureas, phenoxyacetic acids, as well as florsulam, tralcoxidim, klodinafol-propargil, phenoxaprop-P-ethyl, trifluramine, pendimethaline, picolinafen, etc. Composition also may contain safety effective amount of protective agent, such as chloquintocet-mexyl and additive (e.g., mineral oil or C8-C22-fat acid alkyl esters) in amount of 0-2 mass %. Also disclosed is method for selective controlling of weeds and grassy plants in cultural plants by treatment of cultural plants, seeds or seedlings thereof, or vegetation area thereof with claimed composition.

EFFECT: effective composition and method for weed controlling.

5 cl, 11 tbl, 7 ex

FIELD: agriculture, in particular herbicide compositions.

SUBSTANCE: invention relates to weed controlling method for tolerant grain crops using (A) road spectrum herbicides selected from group (A1) glufosinate (salt) and related compounds; (A2) glyphosate (salt) and related compounds; and (B) one or more herbicides selected from group containing (B1) herbicides selectively effecting in grain crops especially against monocotyledonous weeds effecting on folia and/or soil (residual benefit); or (B2) herbicides selectively effecting in grain crops against monocotyledonous or dicot weeds effecting especially on folia; or (B3) herbicides selectively effecting in grain crops against monocotyledonous or dicot weeds effecting on folia or soil; or (B4) herbicides selectively effecting in grain crops against monocotyledonous or dicot weeds effecting on folia; wherein components (A) and (B) are used in synergic ration. Also are described herbicide compositions containing (A1) ) glufosinate (salt) and related compounds and herbicide from group (B); as well as herbicide compositions containing(A2) glyphosate (salt) and related compounds and herbicide from group (B); wherein components (A) and (B) are used in synergically effective ration.

EFFECT: effective controlling of weeds in grain crops.

6 cl, 70 tbl, 3 ex

FIELD: organic chemistry, agriculture.

SUBSTANCE: claimed mixture from herbicides and antidotes contains (A) herbicidically active substance based on phenylsulfonylureas of formula I and salts thereof (in formula R1 is hydrogen or C1-C6-alkyl; R2 is C1-C3-alkyl; R3 is C1-C3-alkoxy; R4 is hydrogen or C1-C4-alkyl; Hal is fluorine, chlorine, bromine, or iodine); and (B) antidote of formulae II or III , wherein X is hydrogen, halogen, C1-C4-alkyl; C1-C4-alkoxy, nitro or C1-C4-haloalkyl; Z is hydroxyl, C1-C8-alkoxy, C3-C6-cycloalkoxy, C2-C8-alkenyloxy, C2-C8-alkynyloxy; R5 is C1-C2-alkandiyl chain optionally substituted with one or two C1-C4 alkyl residues or (C1-C3-alcoxy)carbonyl; W is bivalent heterocyclic residue; n = 1-5; in weight ratio herbicide/antidote of 100:1-1:100. Also disclosed is method for protection of cultural plants against phytotoxic side effect of herbicidically active substance of formula I. Claimed method includes antidote application of formulae II or III on plant, plant parts, plant seeds or seeding areas before or together with herbicidically active substance in amount of 0.005-0.5 kg/hectare in weight ratio of 100:1-1:100.

EFFECT: mixture for effective selective weed controlling in cultural plant, particularly in maize and grain cultures.

8 cl, 2 ex, 7 tbl

FIELD: organic chemistry, herbicides, agriculture.

SUBSTANCE: invention describes a synergistic composition of herbicides comprising components (A) and (B) wherein (A) represents herbicide taken among the group of the formula (I):

wherein R1 means (C1-C4)-alkyl; R2 means (C1-C4)-alkyl; R3 means hydrogen atom; X and Y mean (C1-C4)-alkoxy-group; (B) represents one or two herbicides taken among the group of compounds or their acceptable forms: alachlor, metolachlor, acetochlor, dimetenamide, atrazine, cyanasin, metribusin, fluthiamide, nicosulfuron, rimsulfuron, primisulfuron, pendimetalin, sulcotrion, dicamba, mesotrion, isoxachlortol, metosulam, anilofos, fenoxaprop-ethyl, setoxydim, diclofop-methyl, MCPA, bromoxynil, pyridat, clopyralid, iodosulfuron-methyl, ethoxysulfuron, amidosulfuron, gluphosinat-amminium, isopropylammonium-glyphosate, imasetapir wherein components (A) and (B) are taken in the effective doses. Also, invention describes a method for control of weeds by using above indicated herbicide composition. Invention provides the development of the synergistic herbicide composition eliciting high activity.

EFFECT: improved method for control, valuable properties of composition.

6 cl, 26 tbl, 3 ex

The invention relates to the field of plant protection products that can be used against weeds in tolerant or resistant crops sugar beet and which as a herbicide biologically active substances contain a combination of two or more herbicides

FIELD: agriculture.

SUBSTANCE: clumps of Russian centaury are treated with tank mixture comprising 1.8-2.4 l 2-ethylhexyl ether + Cynidone-ethyl, 0.012-0.015 kg Rimsulfone + thiphenesulfurone-methyl, and 57.6-147.6 L water in a rate of 60-150 L/ha in the weed budding-flowering period. Agent is prepared by consecutively adding mother liquors of herbicides to water followed by agitation for 20 min.

EFFECT: enhanced weed control efficiency.

3 cl

FIELD: agriculture, in particular method for controlling of weeds.

SUBSTANCE: claimed method for controlling of weeds in tolerant maize cultures includes application of composition comprising (A) road spectrum herbicide from group (A1) glufosinate (salt) and analogs, (A2) glyfosate (salt) and analogs; (B) one or more herbicides from group (B1) cyanazin, alachlor, nicosulfurone, rimsulfurone, sulkotrion, mesotrion, and penthoxamid; (B2) pendimethalyne, methosulam, isoxaflutol, metribuzin, chloransulam, flumetsulam, linuron, florasulam, and isoxachlorotol; and (B3) bromoxinyl, chlorpyralid, tifensulfuron, MCPA (2-methyl-4-chlorophenoxyacetic acid), halosulfuron, and sulfosulfuron, wherein (A) and (B) components are in synergic effective ration. Also disclosed are herbicidal compositions including compound from group (A1) or )F2) and herbicide from group (B).

EFFECT: effective controlling of weeds in tolerant maize cultures.

6 cl, 55 tbl, 3 ex

FIELD: organic chemistry, herbicides, agriculture.

SUBSTANCE: invention describes a synergistic composition of herbicides comprising components (A) and (B) wherein (A) represents herbicide taken among the group of the formula (I):

wherein R1 means (C1-C4)-alkyl; R2 means (C1-C4)-alkyl; R3 means hydrogen atom; X and Y mean (C1-C4)-alkoxy-group; (B) represents one or two herbicides taken among the group of compounds or their acceptable forms: alachlor, metolachlor, acetochlor, dimetenamide, atrazine, cyanasin, metribusin, fluthiamide, nicosulfuron, rimsulfuron, primisulfuron, pendimetalin, sulcotrion, dicamba, mesotrion, isoxachlortol, metosulam, anilofos, fenoxaprop-ethyl, setoxydim, diclofop-methyl, MCPA, bromoxynil, pyridat, clopyralid, iodosulfuron-methyl, ethoxysulfuron, amidosulfuron, gluphosinat-amminium, isopropylammonium-glyphosate, imasetapir wherein components (A) and (B) are taken in the effective doses. Also, invention describes a method for control of weeds by using above indicated herbicide composition. Invention provides the development of the synergistic herbicide composition eliciting high activity.

EFFECT: improved method for control, valuable properties of composition.

6 cl, 26 tbl, 3 ex

The invention relates to benzylchloride formula I or its salts, where R1- (C1-C6)alkyl, (C1-C4)cianelli, (C1-C4)hydroxyalkyl, (C3-C6)cycloalkyl, (C1-C6)halogenated, benzyl which may be substituted with halogen, thiazolyl; R2and R3independently - H, (C1-C4)alkyl, or R1and R2together with the sulfur atom and the carbon form a 3-8-membered ring; R4- H, halogen; And - hydrazinoacetate or hydrosonography group of formula A1 or A2; R9- H, halogen, NO2, CN, (C1-C4)alkyl, (C1-C4)halogenated, (C1-C4)alkoxy, (C1-C4)halogenoalkane, (C1-C4)alkylthio, (C1-C4)allogenicity, (C2-C4)alkylsulfonyl, (C1-C4)halogenated.sulphonated, phenyl which may be substituted with halogen, phenoxy, which may be substituted with halogen; R10- H; R11, R12, R13independently - H, (C1-C6)alkyl, (C1-C4)halogenated, (C2-C10)alkoxyalkyl, (C3-C8)alkoxyalkyl, (C2-C6)alkylthiol, (C1-C4)cianelli, benzyl which may be substituted with halogen, (C1-C4)halogenation, (C1-C4)alkyl, -COR14, -COOR15THAT IS SOP(R16R17, -SO2R20-C(R21)= HR22; or R12and R13together can form a group of the formula = CR23R24; R14- (C1-C20)alkyl, (C1-C8)halogenated, (C2-C12)alkoxyalkyl,oxyalkyl, phenyl; R16- H, (C1-C4)alkyl; R17- H, (C1-C6)alkyl, phenyl which may be substituted; R20- (C1-C4)halogenated, (C2-C4)dialkylamino; R21- (C1-C6)alkyl; R22- acyl, (C2-C6)alkoxycarbonyl; R23, R24independently - H, halogen, (C1-C6)alkyl, -NR25R26; R25and R26independently - H, (C1-C4)alkoxy, (C2-C12)alkoxyalkyl; Q1and Q2is nitrogen or CR9m = 1 to 3, n = 0, 1, 2

The invention relates to the field of protection of plants from pathogens, or more precisely to protect rice from pyricularia

FIELD: agriculture.

SUBSTANCE: the suggested herbicidal composition based upon a two-component mixture contains ethers based upon alcohols C8 of normal and isostructure or those of fraction C7-C9 2-methyl-4-chlorophenoxyacetic acid (I) and analogous ethers 3.6-dichloropyridine-2-carbonic acid (II) at weight ratio being (I):(II) being equal to (84-90):(10-16). Composition, also, contains an emulsifying agent -oxyethylated alkylphenols or higher fatty alcohols, a solvent - aromatic hydrocarbons or alcohols C7-C9, at the following ratio of components, weight%: ethers 2-methyl-4-chlorophenoxyacetic acid (I) 27-45, ethers 3.6-dichloropyridine-2-carbonic acid (II) 3-7, emulsifying agent 15-20, solvent - up to 100. The obtained herbicidal composition is of higher herbicidal properties along with decreased herbicidal loading upon environment.

EFFECT: higher efficiency of application.

12 ex, 2 tbl

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