JP2006151960A - Herbicide composition for upland farming and control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a herbicide that rapidly develops herbicidal effect, has a wide weeding spectrum and selectively controls a wide range of weeds especially in the field of wheat or barley cultivation. <P>SOLUTION: The herbicide composition comprises a thienopyrimidine derivative represented by general formula (I) (R<SP>1</SP>is a 1-2C fluorine-containing alkyl, a 1-2C fluorine-containing alkoxy or a 1-2C fluorine-containing alkylthio; R<SP>2</SP>is a 1-4C alkyl or a 1-4C fluorine-containing alkyl; R<SP>3</SP>and R<SP>4</SP>are each H or a 1-3C alkyl) and one or more herbicides selected from a urea-based herbicide, a dinitroaniline-based herbicide, a phenoxypropionic acid-based herbicide, a cyclohexanedione-based herbicide, an imidazolinone-based herbicide, a sulfonylurea-based herbicide, a carbamate-based herbicide, a triazolinone-based herbicide, a triazolopyrimidine-based herbicide, etc., as active ingredients. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a herbicidal composition capable of efficiently controlling various harmful weeds by mixing two or more herbicides.

At present, many compounds having herbicidal activity have been reported and are commercially available as herbicides. As a herbicide, it is desired that it has a high herbicidal effect, has a broad herbicidal spectrum, and has excellent environmental and crop safety. Many of the existing herbicides do not necessarily satisfy this requirement, and are often used as a herbicidal composition in which two or more herbicides that complement each other's weaknesses are mixed.
The thienopyrimidine derivative represented by the general formula (I) constituting the herbicidal composition of the present invention is an active ingredient of a selective herbicide used when cultivating crops such as rice, wheat, corn, and soybean. Is known (for example, see Patent Document 1). Moreover, each herbicide which comprises this invention with the thienopyrimidine derivative represented by general formula (I) is a well-known compound (for example, refer nonpatent literature 1 or nonpatent literature 2).

JP 2004-137270 A Pesticide Manual (The Pesticide Manual, Thirtainent Edition, 2003) Shibuya Narumi, 3 others, “SHIBUYA INDEX-2002-9th Edition”, SHIBUYA INDEX Study Group, December 15, 2001

  However, the thienopyrimidine derivative represented by the general formula (I) alone may not always provide a sufficient herbicidal effect depending on the weed species, crop cultivation conditions, etc., and has a higher herbicidal effect and a broad herbicidal spectrum. Therefore, it has been desired to create a herbicidal composition having herbicidal properties with excellent safety.

（式中、Ｒ¹は炭素数１〜２の含フッ素アルキル基、炭素数１〜２の含フッ素アルコキシ
基又は炭素数１〜２の含フッ素アルキルチオ基を示し、Ｒ²は炭素数１〜４のアルキル基
又は炭素数１〜４の含フッ素アルキル基を示し、Ｒ³及びＲ⁴はそれぞれ独立して水素原子
又は炭素数１〜３のアルキル基を示す。）で表されるチエノピリミジン誘導体から選択される少なくとも１種の化合物と、ウレア系除草剤、ジニトロアニリン系除草剤、フェノキシプロピオン酸系除草剤、シクロヘキサンジオン系除草剤、イミダゾリノン系除草剤、スルホニルウレア系除草剤、カーバメート系除草剤、トリアゾリノン系除草剤、トリアゾロピリミジン系除草剤、フルロキシピル、クロピラリド、フルフェナセット、フルルタモン又はピノキサデンから選択される１種又は２種以上の除草剤とを有効成分として含有することを特徴とする除草剤組成物及びその使用方法に関する。 As a result of intensive studies to find an excellent herbicidal composition, the present inventors have found that the thienopyrimidine derivative represented by the general formula (I) and one or more compounds known for herbicidal activity, As compared with the case where each component is used alone, the time to the herbicidal effect is shortened, and the effect can be increased synergistically and the dosage can be reduced. At the same time, the herbicidal spectrum has expanded, and it has been found that a wide range of weeds can be selectively controlled, particularly in the field of wheat, and the present invention has been completed. That is, the present invention relates to the general formula (I)

(In the formula, R ¹ represents a fluorinated alkyl group having 1 to 2 carbon atoms, a fluorinated alkoxy group having 1 to 2 carbon atoms, or a fluorinated alkylthio group having 1 to ² carbon atoms, and R ² represents 1 to 4 carbon atoms. Or a fluorine-containing alkyl group having 1 to 4 carbon atoms, and R ³ and R ⁴ each independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.) At least one selected compound, urea herbicide, dinitroaniline herbicide, phenoxypropionic acid herbicide, cyclohexanedione herbicide, imidazolinone herbicide, sulfonylurea herbicide, carbamate herbicide, Selected from triazolinone herbicides, triazolopyrimidine herbicides, fluroxypyr, clopyralide, fluphenacet, flurtamone or pinoxaden One or herbicide composition characterized by containing the two or more herbicides as active ingredients that and methods of use thereof.

  The present invention shows a synergistic effect even in the weed species and cultivation conditions that do not show sufficient effects by themselves, and can achieve a higher weed control effect and can control weeds at a lower dose. An agent composition is provided.

Hereinafter, the present invention will be described in detail. In the thienopyrimidine derivative represented by the general formula (I) constituting the herbicidal composition of the present invention, R ¹ is a fluorine-containing alkyl group, a fluorine-containing alkoxy group, or a fluorine-containing alkylthio group. Methyl group, difluoromethyl group, trifluoromethyl group, 2-fluoroethyl group, 2,2-difluoromethyl group, 2,2,2-trifluoroethyl group, fluoromethoxy group, difluoromethoxy group, trifluoromethoxy group, 2-fluoroethoxy group, 2,2-difluoromethoxy group, 2,2,2-trifluoroethoxy group, fluoromethylthio group, difluoromethylthio group, trifluoromethylthio group, 2-fluoroethylthio group, 2,2-difluoro Examples thereof include a methylthio group and a 2,2,2-trifluoroethylthio group. R ² is a linear or branched alkyl group or a fluorine-containing alkyl group, and specifically includes a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a tert -Butyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group, 2-fluoroethyl group, 2,2-difluoromethyl group, 2,2,2-trifluoroethyl group, 3-fluoropropyl group, 3, 3,3-trifluoropropyl group, 2,2,3,3, -tetrafluoropropyl group, 2,2,3,3,3-pentafluoropropyl group, 1-methyl-2,2,2-trifluoro Examples include an ethyl group, 2,2,2-trifluoro-1- (trifluoromethyl) ethyl group, 1-methyl-2,2,3,3,3-pentafluoropropyl group. R ³ and R ⁴ are each independently a hydrogen atom or a linear or branched alkyl group, and specific examples include a hydrogen atom, a methyl group, an ethyl group, a propyl group, and an isopropyl group.

In the thienopyrimidine derivative represented by the general formula (I), R ¹ represents a trifluoromethyl group, a trifluoromethoxy group or a trifluoromethylthio group, and R ² has ² to 3 carbon atoms.
Are preferably fluorine-containing alkyl groups or alkyl groups having 1 to 3 carbon atoms, R ³ represents a methyl group or an ethyl group, and R ⁴ represents a hydrogen atom. Among these, specific examples of particularly preferred compounds include the compounds in Table 1.

The treatment dose when controlling weeds with the thienopyrimidine derivative represented by the general formula (I) varies depending on the target crop, weed species, application scene, application conditions, etc. 1 to 2,000 g / ha, preferably 1 to 1,000 g / ha, particularly preferably 10 to 500 g / ha.
Further, the thienopyrimidine derivative represented by the general formula (I) of the present invention can selectively control a wide range of weeds in the field of wheat, and is preferably mixed with a herbicide widely used in the field of wheat.

As urea-type herbicides, for example, diuron, linuron, fluometuron, chlorotoluron, isoproturon, daimulon, isouron, isouron, isouron (isouron) Examples include tebuthiuron, metabenzthiazuron, and metebbenzuron, and particularly preferred is isoproturon or metabenzthiazuron.
The treatment dose of the urea herbicide in the present invention varies depending on the type of compound. For example, isoproturon is 10 to 10,000 g / ha, preferably 100 to 5,000 g / ha, particularly preferably 500 to 2,000 g. / Ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the urea herbicide varies depending on the target weed species, application scene, application conditions, etc., but is usually preferable. Is 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight of the urea herbicide, based on 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

As a dinitroaniline herbicide, in general terms, for example, trifluralin, benfluralin, prodiamine (p
rhodiamine, oryzalin, butralin, pendimethalin and the like, particularly preferably pendimethalin or trifluralin.
The treatment dose of the dinitroaniline herbicide in the present invention varies depending on the kind of the compound. For example, pendimethalin is 10 to 10,000 g / ha, preferably 100 to 5,000 g / ha, particularly preferably 500 to 2,000 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the dinitroaniline herbicide varies depending on the target weed species, application scene, application conditions, etc. The amount of dinitroaniline herbicide is preferably 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight, based on 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  As a phenoxypropionic acid herbicide, when expressed by a general name, for example, diclohop and derivatives thereof and optically active forms thereof, fluazifop and derivatives thereof and optically active forms thereof, clodinahop and derivatives thereof and optically active forms thereof, Haloxyfop and derivatives thereof and optically active forms thereof, phenoxaprop and derivatives thereof, and optically active forms thereof, cihalohops and derivatives thereof, optically active forms thereof, quizalofop and derivatives thereof and optically active forms thereof Particularly preferred are clodinafop and its derivatives and optically active forms thereof.

  The treatment dose of the phenoxypropionic acid herbicide in the present invention varies depending on the kind of the compound, but for example, clodinap is 10 to 10,000 g / ha, preferably 10 to 1,000 g / ha, particularly preferably 30 to 500 g. / Ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the phenoxypropionic acid-based herbicide varies depending on the target weed species, application scene, application conditions, etc. Usually, the amount of the phenoxypropionic acid-based herbicide is preferably 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight per 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  The cyclohexanedione herbicides can be represented by general names, for example, cetoxydim, cycloxydim, tralcoxydim, butroxydim, cletodim, teplaloxidim, teplaloxidim, teplaloxidim, etc. Particularly preferred is tralkoxydim.

  The treatment dose of the cyclohexanedione herbicide in the present invention varies depending on the kind of the compound. For example, tralcoxydim is 10 to 10,000 g / ha, preferably 10 to 1,000 g / ha, and particularly preferably 30 to 500 g / ha. ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the cyclohexanedione herbicide varies depending on the target weed species, application scene, application conditions, etc. Preferably, the cyclohexanedione herbicide is in the range of 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight, based on 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  As imidazolinone-based herbicides, when expressed by general names, for example, imazametabenz-methyl, imazapyr and salts thereof, imazapic and salts thereof, imazaquin and salts thereof, ) And salts thereof, imazamox and salts thereof, and the like, particularly preferably imazametabenz-methyl.

  The treatment dose of the imidazolinone herbicide in the present invention varies depending on the type of the compound. For example, imazametabenz is 10 to 10,000 g / ha, preferably 10 to 1,000 g / ha, and particularly preferably 30 to 500 g / ha. ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the imidazolinone herbicide varies depending on the target weed species, application scene, application conditions, etc. Preferably, the imidazolinone type herbicide is in the range of 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight per 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  The sulfonylurea herbicides can be represented by general names, for example, amidosulfuron, iodosulfuron, chlorimuron-ethyl, sulfomethuron-methyl, and prisulfuron-methyl. Misulfuron, bensulfuron-methyl, ethoxysulfuron, cyclosulfuron, chlorsulfuron, metsulfuron, metsulfuron methyl Methyl (tribenuron-methyl), tri Sulfuron (triasulfuron), tritosulfuron (tritosulfuron), trifluoxysulfuron (trifloxysulfuron), sinosulfuron (cinosulfuron), etamethsulfuron methyl (ethamesulfuron-methyl), triflusulfuron (thulfururmethyl) Thifensulfuron-methyl, pyrazosulfuron-ethyl, halosulfuron-methyl, foramsulfuron, flazasulfuron Furon), mesosulfuron (mesosulfuron), rimsulfuron (rimsulfuron), nicosulfuron (nicosulfuron), flupyrsulfuron-methyl (flupyrsulfuron-methyl) and its salts, imazosulfuron (imazosulfuron), sulfosulfuron (sulfosulfuron), and the like,

Preferably, amidosulfuron, iodosulfuron, chlorimuron-ethyl, sulfometron-methyl, primisulfuron, ethoxysulfuron , Chlorosulfuron, metsulfuron-methyl, tribenuron-methyl, triasulfuron, tritosulfuron, triflusulfuron-methyl , Sulfuron, thifensulfuron-methyl, halosulfuron-methyl, flazasulfuron, mesosulfuron, rimsulfuron, rimsulfuron, rimsulfuron, rimsulfuron Rufluon-methyl and its salt, sulfosulfuron,

Particularly preferred are amidosulfuron, iodosulfuron, ethoxysulfuron, chlorsulfuron, metsulfuron-methyl, tribenuron methyl
thyl), trisulfuron, tritosulfuron, thifensulfuron-methyl, halosulfuron-methyl, mesosulfuron, methylsulfuron, and methylsulfuron. Its salt is sulfosulfuron.

  The treatment dose of the sulfonylurea herbicide in the present invention varies depending on the kind of the compound. For example, flupirsulfuron methyl is 0.1 to 1,000 g / ha, preferably 1 to 100 g / ha, particularly preferably 5 to 5. 20 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the sulfonylurea herbicide varies depending on the target weed species, application scene, application conditions, etc., but is usually preferably The amount of the sulfonylurea herbicide is 0.001 to 100 parts by weight, particularly preferably 0.01 to 2 parts by weight with respect to 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  Examples of carbamate herbicides include sulfate, di-allate, tri-late, EPTC, butyrate, esprocarb, olbencarb, thiobencarb ), Molinate, isopolynate, dipipeperate, pyributicalcarb, phenmedifam, desmedifam, chlorprofam, and chlorprophum. Particularly preferably Is a Riareto (tri-allate).

  The treatment dose of the carbamate herbicide in the present invention varies depending on the kind of the compound. For example, triate is 10 to 10,000 g / ha, preferably 100 to 5,000 g / ha, particularly preferably 500 to 2, 000 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the carbamate herbicide varies depending on the target weed species, application scene, application conditions, etc., but is usually preferable. Is in the range of 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight of the carbamate herbicide per 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  Triazolinone herbicides include, for example, amicarbazone, flucarbazone and salts thereof, propoxycarbazone and salts thereof, sulfentrazone, carfentrazone ethyl Particularly preferred are flucarbazone and its salt or propoxycarbazone and its salt.

  The treatment dose of the triazolinone herbicide in the present invention varies depending on the type of the compound. For example, flukazone is 0.1 to 1,000 g / ha, preferably 1 to 100 g / ha, particularly preferably 5 to 50 g / ha. It is. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the sulfonylurea herbicide varies depending on the target weed species, application scene, application conditions, etc., but is usually preferably The triazolinone herbicide is 0.01 to 100 parts by weight, particularly preferably 0.1 to 2 parts by weight, based on 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

Examples of the triazolopyrimidine herbicide include flumetumul (flumetsul).
am), methoslam, dicloslam, chloransrammethyl, florasulam, penoxslam, and particularly preferably flumeslam or flumeslam. It is chloransrammethyl.

  The treatment dose of the triazolopyrimidine herbicide in the present invention varies depending on the type of the compound. For example, florasulam is 0.1 to 1,000 g / ha, preferably 1 to 100 g / ha, particularly preferably 5 to 50 g. / Ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and the triazolopyrimidine herbicide varies depending on the target weed species, application scene, application conditions, etc. Preferably, the triazolopyrimidine herbicide is in the range of 0.001 to 100 parts by weight, particularly preferably 0.01 to 10 parts by weight, based on 1 part by weight of the thienopyrimidine derivative represented by the general formula (I).

  In addition, it can be suitably mixed with herbicides such as fluroxypyr and derivatives thereof, clopyralid and derivatives thereof, flufenacet, flurtamone, and pinoxaden.

  The treatment dose of clopyralide in the present invention is 10 to 10,000 g / ha, preferably 50 to 2,000 g / ha, particularly preferably 100 to 1000 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by general formula (I) and clopyralide varies depending on the target weed species, application scene, application conditions, etc. Clopyralide is 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight per 1 part by weight of the thienopyrimidine derivative represented by (I).

  The treatment dose of fluroxypyr in the present invention is 10 to 10,000 g / ha, preferably 50 to 2,000 g / ha, particularly preferably 100 to 1000 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and fluroxypyr varies depending on the target weed species, application scene, application conditions, etc., but the general formula is usually preferred. With respect to 1 part by weight of the thienopyrimidine derivative represented by (I), the amount of fluroxypyr is 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight.

The treatment dose of flufenacet in the present invention is 10 to 10,000 g / ha, preferably 10 to 1,000 g / ha, particularly preferably 30 to 500 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and flufenacet varies depending on the target weed species, application scene, application conditions, etc., but usually preferably With respect to 1 part by weight of the thienopyrimidine derivative represented by the general formula (I), flufenacet is 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight.

  The treatment dose of flurtamone in the present invention is 10 to 10,000 g / ha, preferably 10 to 1,000 g / ha, particularly preferably 30 to 500 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and flurtamone varies depending on the target weed species, application scene, application conditions, etc., but the general formula is usually preferred. With respect to 1 part by weight of the thienopyrimidine derivative represented by (I), the content of flurtamone is 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight.

The treatment dose of pinoxaden in the present invention is 10 to 10,000 g / ha, preferably 10 to 1,000 g / ha, particularly preferably 30 to 500 g / ha. In the herbicidal composition of the present invention, the content ratio of the thienopyrimidine derivative represented by the general formula (I) and pinoxaden varies depending on the target weed species, application scene, application conditions, etc., but preferably the general formula With respect to 1 part by weight of the thienopyrimidine derivative represented by (I), pinoxaden is 0.1 to 5000 parts by weight, particularly preferably 1 to 200 parts by weight.
What is necessary is just to select the treatment dose of the herbicidal composition of this invention suitably in the range of the effective dosage of the thienopyrimidine derivative represented with general formula (I) and each herbicide to mix. In the present invention, two or more kinds of the thienopyrimidine derivative represented by the general formula (I) and the above herbicide can be mixed, and the treatment dose is appropriately selected within the range of the effective dose of each herbicide. It ’s fine.

  In order to control weeds using the composition of the present invention, it is usually applied in the form of various agricultural chemical preparations using auxiliary agents such as carriers and surfactants according to conventional methods. Alternatively, the thienopyrimidine derivative represented by the general formula (I) and each herbicidal component can be formulated separately and applied simultaneously or sequentially so that the composition is formed in the application scene. . The application scene and application method of the composition of the present invention are not particularly limited, and can be used for soil treatment and foliage treatment during various crop cultivation. In particular, the main weeds in the field of wheat by foliage treatment. , E.g., Japanese genus, Japanese genus, Japanese burrowing, Japanese horned beetle, Japanese barley, Japanese oats, wild oats, Japanese cereals, Japanese cedars, Japanese crocodiles, Japanese muggrass, Japanese cypresses, Japanese white wings, Japanese corns , Effectively control mosquito, wild mustard, white mustard, scallop, buckwheat, buckwheat, sanaetade, hartade, subhihiyu, white pepper, ganbana, michiyanagi, agatei, hakidamegiku, noborgiku, etc. It can be used safely in One wheat.

  The composition of the present invention is mixed with a solid carrier or a liquid carrier, and if necessary, a surfactant, a penetrating agent, a spreading agent, a thickening agent, an antifreezing agent, a binder, an anti-caking agent, an anti-decomposition agent, etc. are added. Liquid, emulsion, wettable powder, aqueous solvent, granular wettable powder, granular aqueous solvent, suspension, emulsion, suspoemulsion, powder, granule and gel, etc. It can also be used by being enclosed in a water-soluble package. Examples of solid carriers used in the formulation include kaolinite, diatomaceous earth, bentonite, clay, acidic clay, activated carbon, sericite, talc, attapulgite, zeolite, and other natural minerals, calcium carbonate, ammonium sulfate, sodium sulfate, and the like. Examples thereof include inorganic salts such as potassium chloride, synthetic silicic acid, and synthetic silicate. Examples of liquid carriers include water, alcohols (methanol, ethanol, ethylene glycol, propylene glycol, isopropanol, etc.), aromatic hydrocarbons (toluene, xylene, alkylbenzene, alkylnaphthalene, etc.), ethers (dioxane, diisopropyl ether, butyl cellosolve) Etc.), ketones (acetone, methyl ethyl ketone, cyclohexanone, etc.), esters (ethyl acetate, butyl acetate, etc.), acid amides (dimethylformamide, dimethylacetamide, etc.), nitriles (acetonitrile, isobutyronitrile, etc.), halogen Hydrocarbons (dichloroethane, etc.) and vegetable oils (soybean oil, rapeseed oil, cottonseed oil, castor oil, etc.).

  Examples of the surfactant include alkyl sulfates, alkyl aryl sulfonates, alkyl sulfonates, alkyl aryl ethers and polyoxyethylene addition compounds thereof, polyethylene glycol ethers, polyhydric alcohol esters, sugar alcohol derivatives, etc. Is mentioned. Examples of other formulation adjuvants include casein, gelatin, polysaccharides (starch, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, synthetic water-soluble polymers (polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid, etc.), etc. And stabilizers such as vegetable oils, mineral oils, fatty acids and fatty acid esters. In addition, the composition of the present invention can be further mixed with other herbicides to enhance the herbicidal effect, or can be used in combination with insecticides, fungicides, plant regulators, fertilizers, soil improvers, etc. Is possible.

In addition, the thienopyrimidine derivative represented by the general formula (I) in the present invention can be mixed and applied with herbicides other than the herbicides exemplified above, For example, the following are mentioned.
Organophosphorus herbicides such as glyphosate and salts thereof, glufosinate and salts thereof, bialaphos and salts thereof, butamifos, anilofos, bensulide and the like; ), Dimetachlor, metazachlor, alachlor, butachlor, pretilachlor, acetochlor, metolachlor, and optically active tetrol. , Dietilil (die hatyl, dimethenamide, dipropenamide, diprophenamide, diprophenamide, diprophenafide, diprophenamide Amide herbicides such as bromobutide and isoxaben; 2,4-D and derivatives thereof, 2,4,5-T and derivatives thereof, MCPA and derivatives thereof, dichloroprop and derivatives thereof and derivatives thereof Optically active forms, mecoprop and Derivatives and optically active forms thereof, MCPB and derivatives thereof, dicamba and derivatives thereof, 2,3,6-TBA and derivatives thereof, quinclorac and derivatives thereof, quinmerac and derivatives thereof, picloram Carboxylic acid herbicides such as (picloram) and derivatives thereof, triclopyr and derivatives thereof, benazolin and derivatives thereof;

Phenolic herbicides such as bromoxynil and its derivatives, ioxynil and its derivatives, dinoterb and its derivatives, dinoseb and its derivatives; sulcotrione, mesotrione, mesotrione Trione herbicides such as benzocyclone; chloronitrofen, chloromethoxynil, oxyfluorfen, bifenox, aciflufen glyco and its salt, Lactofen (l Diphenyl ether herbicides such as ctofen, fomesafen, aclonifen; bipyridinium herbicides such as paraquat and diquat; pyrazolate, pyrazoxifene, pyrazoxyphen Pyrazole herbicides such as benzofenap and pyrasulfotole; simazine, atrazine, propazine, cyanazine, methimetrimetine, methimetrimetine ametryn), promethrin (promet) yn), prometon (prometon), triaziflam (triaziflam), triazine herbicides such as metribuzin (metribuzin);

Furthermore, indanophan, fluridone, flurochloridone, norflurazon, fenatrodizon, fentraxamide, pentoxazone, pentoxazone Lufenethyl (pyraflufen-ethyl), isopropazole (flupropacil), butafenacil, flufenpyr-ethyl, pyraclonil (pyraclonil) Flupoxam, clomazone, isoxaflutole, isoxachlortole, dithiopyr, thiazopyr, pyrithiomin and pyriminopyriminopyrominopyrominopyro -Methyl), bispyribac and its salts, bromacil, terbacil, lenacil, oxadichromemefone, cinmethylin, chlorphthalim (chlorphulyl) iclorac-pentyl), flumioxazin, cinidon-ethyl, azaphenidin, fluthiacet-methyl, benfuretate, bethfetate, etofomecete )etc.

Hereinafter, the present invention will be described more specifically by preparation examples and test examples of the present invention, but the present invention is not limited to the following examples as long as the gist thereof is not exceeded. In the following examples, the following compounds were used as the respective components of the herbicidal composition of the present invention.
Component (A): No. 1 in Table 1 Compound (B) component shown in 8; Isoproturon (generic name)
Component (C): pendimethalin (generic name)
Component (D): Flupirsulfuron methyl sodium salt (generic name)
(E) component; Floras lam (generic name)
(F) component; trifluralin (generic name)
In the following formulation examples, “part” means “part by weight”.

Formulation Example 1
2 parts of component (A), 60 parts of component (B), (C) or (F), 3 parts of calcium lignin sulfonate, 2 parts of sodium lauryl sulfate, and 33 parts of diatomaceous earth are mixed and pulverized thoroughly. Got.
Formulation Example 2
10 parts of the component (A), 2 parts of the component (D) or (E), 3 parts of calcium lignin sulfonate, 2 parts of sodium lauryl sulfate and 83 parts of diatomaceous earth were thoroughly mixed and ground to obtain a wettable powder.
Formulation Example 3
5 parts of component (A), 50 parts of component (B), (C) or (F), 3 parts of calcium lignin sulfonate, 2 parts of sodium lauryl sulfate and 40 parts of diatomaceous earth are thoroughly mixed and pulverized. Got.
Formulation Example 4
10 parts of the component (A), 1 part of the component (D) or (E), 3 parts of calcium lignin sulfonate, 2 parts of sodium lauryl sulfate and 84 parts of diatomaceous earth were thoroughly mixed and ground to obtain a wettable powder.

Formulation Example 5
2 parts of component (A), 60 parts of component (B), (C) or (F), 5 parts of polyethylene glycol dialkyl aryl ether sulfate ester, 10 parts of calcium lignin sulfonate and 23 parts of diatomaceous earth were mixed and ground well. Thereafter, a small amount of water was added and mixed and kneaded, granulated with an extrusion granulator, and dried to obtain a granular wettable powder.
Formulation Example 6
(A) 20 parts component, (D) or (E) component 4 parts, polyethylene glycol dialkylaryl ether sulfate 5 parts, lignin sulfonate calcium 10 parts and diatomaceous earth 61 parts well mixed and ground, Water was added and mixed and kneaded, granulated with an extrusion granulator, and dried to obtain a granulated wettable powder.
Formulation Example 7
6 parts of (A) component, 60 parts of (B), (C) or (F) component, 5 parts of polyethylene glycol dialkyl aryl ether sulfate ester, 10 parts of calcium lignin sulfonate and 19 parts of diatomaceous earth were mixed and ground well. Thereafter, a small amount of water was added and mixed and kneaded, granulated with an extrusion granulator, and dried to obtain a granular wettable powder.
Formulation Example 8
(A) 20 parts, (D) or (E) 2 parts, polyethylene glycol dialkyl aryl ether sulfate 5 parts, lignin calcium sulfonate 10 parts and diatomaceous earth 63 parts well mixed and ground, Water was added and mixed and kneaded, granulated with an extrusion granulator, and dried to obtain a granulated wettable powder.

Formulation Example 9
(A) component 2 parts, (B), (C) or (F) component 60 parts, calcium lignin sulfonate 5 parts, sodium lauryl sulfate 3 parts, xanthan gum 0.2 parts and white carbon 5 parts and water 24 8 parts were mixed and wet pulverized to obtain a suspension.
Formulation Example 10
5 parts of component (A), 1 part of component (D) or (E), 5 parts of calcium lignin sulfonate, 3 parts of sodium lauryl sulfate, 0.2 part of xanthan gum and 5 parts of white carbon and 80.8 parts of water The mixture was mixed and wet pulverized to obtain a suspension.
Formulation Example 11.
5 parts of component (A), 50 parts of component (B), (C) or (F), 5 parts of calcium lignin sulfonate, 3 parts of sodium lauryl sulfate, 0.2 part of xanthan gum and 5 parts of white carbon and water 31 8 parts were mixed and wet pulverized to obtain a suspension.
Formulation Example 12.
10 parts of component (A), 1 part of component (D) or (E), 5 parts of calcium lignin sulfonate, 3 parts of sodium lauryl sulfate, 0.2 part of xanthan gum and 5 parts of white carbon and 75.8 parts of water The mixture was mixed and wet pulverized to obtain a suspension.

Formulation Example 13
(A) 2 parts, (B), (C) or (F) 60 parts, N, N-dimethylacetamide 15 parts, xylene 15 parts, polyoxyethylene alkylallyl ether 8 parts mixed and melted To obtain an emulsion.
Formulation Example 14.
20 parts of component (A), 4 parts of component (D) or (E), 15 parts of N, N-dimethylacetamide, 53 parts of xylene and 8 parts of polyoxyethylene alkylallyl ether are mixed and melted to obtain an emulsion. Obtained.
Formulation Example 15.
5 parts of component (A), 50 parts of component (B), (C) or (F), 15 parts of N, N-dimethylacetamide, 22 parts of xylene, and 8 parts of polyoxyethylene alkylallyl ether are mixed and melted. To obtain an emulsion.
Formulation Example 16.
20 parts of component (A), 1 part of component (D) or (E), 15 parts of N, N-dimethylacetamide, 56 parts of xylene and 8 parts of polyoxyethylene alkylallyl ether are mixed and melted to obtain an emulsion. Obtained.

  Next, test examples of the composition of the present invention will be shown. In the following test examples, when (A) component and (B), (C), (D), (E) or (F) component were actually used in combination, The effect (synergistic effect) exceeded the expected effect. A synergistic effect is an effect when two or more drugs act simultaneously, and the effect is greater than expected from the activity of each alone. The activity expected by a specific combination of two herbicides (referred to as “expected value”) is the following Colby formula (see Colby, SR, Weeds, 15, p. 20-22 (1967)): Can be calculated from

[Formula 1]
E = X + Y− (X × Y / 100)
(In the formula, E indicates the inhibition rate expected when herbicide A is mixed with pkg / ha and herbicide B is qkg / ha mixed. X indicates the inhibition rate when herbicide A is treated with pkg / ha. Y indicates the inhibition rate when herbicide B is treated with qkg / ha.)
It can be said that the combination shows a synergistic effect if the value of E is exceeded when the mixing process is actually performed. In addition, the suppression rate was obtained by Equation 2.
[Formula 2]
Suppression rate (%) = (1-treated body weight / untreated body weight) × 100

Test Example 1 Upland field foliage treatment test for Nosamenotepou: Resin bats with an area of 200 cm ² were filled with a field soil of a pelagic soil, and after fertilization, Nosamenoteposhi was seeded and covered uniformly. Then, the cultivation management is continued in the greenhouse, and when the growing leaf age of the test weed reaches 2.0 to 2.5 leaf stages, each herbicide diluted to a predetermined concentration is mixed into a small power pressure sprayer. And sprayed uniformly on the foliage. In addition, the single agent of component (A) was prepared according to Formulation Example 1 {(B), (C) or (F) component was reduced, and diatomaceous earth was added}, (B) component and (C) A commercially available flowable agent was used as the component single agent, and a commercially available emulsion was used as the component (F) single agent. Moreover, they were mixed to prepare a mixture. Thereafter, cultivation management was continued in the greenhouse. On the 28th day after the treatment, the above-ground living weight of each weed was measured, the inhibition rate (%) was determined according to Equation 2, and the expected value was calculated according to Equation 1. The results are shown in Tables 2 and 3.

第２表及び第３表から明らかなように、ノスズメノテッポウに対して各除草剤成分（a.i.）を単独で茎葉処理した場合に比べ、併用処理することにより期待値を遙かに上回る優れた除草効果を示した。

As can be seen from Tables 2 and 3, superior herbicidal treatment that far exceeds the expected value by combined treatment compared to the case where each herbicide component (ai) is treated with foliage alone for foliage Showed the effect.

Test Example 2 Upland field foliage treatment test for chickweed and dog chamomile 200 cm ² of resin bats are filled with field soil of pelagic clay loam, and after fertilization,
Dog chamomile was seeded and covered uniformly. Then, cultivation management is continued in the greenhouse, and when the growing leaf age of the test weed reaches 2.0 to 2.5 leaf stages, each herbicide diluted to a predetermined concentration is mixed into a small power pressurized sprayer And sprayed uniformly on the foliage. The single component (A) was prepared according to Formulation Example 12, {(D) and (E) were added to the reduced amount of water}, and the single component (D) was a commercially available granule hydrate. As a single agent of component (E), a commercially available flowable agent was used. Moreover, they were mixed to prepare a mixture. Thereafter, cultivation management was continued in the greenhouse, and the ground weight of each weed was measured on the 28th day after the treatment, and the inhibition rate and the expected value were obtained in the same manner as in Test Example 1. The results are shown in Tables 4 and 5.

第４表及び第５表から明らかなように、ハコベ、イヌカミツレに対して各除草剤成分を単独で茎葉処理した場合に比べ、併用処理することにより期待値を遙かに上回る優れた除草効果を示した。

As is clear from Tables 4 and 5, the herbicidal effect is far superior to the expected value due to the combined treatment compared to the case where each herbicide component is individually treated with foliage against the leafhopper and the dog chamomile. Indicated.

Claims (11)

Formula (I)

(In the formula, R ¹ represents a fluorinated alkyl group having 1 to 2 carbon atoms, a fluorinated alkoxy group having 1 to 2 carbon atoms, or a fluorinated alkylthio group having 1 to ² carbon atoms, and R ² represents 1 to 4 carbon atoms. Or a fluorine-containing alkyl group having 1 to 4 carbon atoms, and R ³ and R ⁴ each independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.) At least one selected compound, urea herbicide, dinitroaniline herbicide, phenoxypropionic acid herbicide, cyclohexanedione herbicide, imidazolinone herbicide, sulfonylurea herbicide, carbamate herbicide, Selected from triazolinone herbicides, triazolopyrimidine herbicides, fluroxypyr, clopyralide, fluphenacet, flurtamone or pinoxaden One or herbicide composition characterized by containing a two or more herbicides as active ingredients that.   The herbicidal composition according to claim 1, wherein the urea herbicide is isoproturon, chlorotoluron, or metabenzthiazulone.   The herbicidal composition according to claim 1, wherein the dinitroaniline herbicide is trifluralin, benfluralin, prodiamine, oryzalin, butralin or pendimethalin.   The herbicidal composition according to claim 1, wherein the phenoxypropionic acid herbicide is diclohop, phenoxaprop, clodinafop, a derivative thereof, or an optically active form thereof.   The herbicidal composition according to claim 1, wherein the cyclohexanedione herbicide is tralcoxydim.   The herbicidal composition according to claim 1, wherein the imidazolinone herbicide is imazametabenz.   Sulfonylurea herbicides are amidosulfuron, iodosulfuron, chlorimuron ethyl, sulfomelon methyl, primisulfuron, bensulfuron methyl, ethoxysulfuron, cyclosulfamuron, chlorsulfuron, metsulfuron methyl, tribe. Nylon methyl, trisulfuron, tritosulfuron, trifluoxysulfuron, sinosulfuron, etametosulfuron methyl, triflusulfuron methyl, prosulfuron, thifensulfuron methyl, pyrazosulfuron ethyl, halosulfuron methyl, holamsulfuron, hula The herbicidal composition according to claim 1, which is zasulfuron, mesosulfuron, rimsulfuron, nicosulfuron, flupylsulfuron methyl and its salt, imazosulfuron or sulfosulfuron.   The herbicidal composition according to claim 1, wherein the carbamate herbicide is triarate.   The herbicidal composition according to claim 1, wherein the triazolinone-based herbicide is flucarbazone, propoxycarbazone or a salt thereof.   The herbicidal composition according to claim 1, wherein the triazolopyrimidine herbicide is flumeturum, florasulam, or chloranthrammethyl. A method for using a herbicidal composition comprising treating an effective amount of the herbicidal composition according to any one of claims 1 to 10 on a target weed or soil in order to control weeds harmful to a crop.