JP2010030998A - Herbicidal composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a herbicidal composition having a broader herbicidal spectrum, higher activity, and a longer-term effect to deal with various weeds whose growing periods are prolonged, although many herbicides are developed or used nowadays. <P>SOLUTION: The herbicidal composition contains (A) azimsulfuron or its salt and (B) at least one compound, selected from the group consisting of pyrazoxyfen, benzobicyclon, and cafenstrole, or its salt. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a herbicidal composition comprising (A) azimusulfuron or a salt thereof and (B) at least one compound selected from the group consisting of pyrazoxifene, benzobicyclon, and caffeentrol, or a salt thereof as active ingredients.

  Patent Documents 1, 2, or 3 describe a herbicidal composition in which azimusulfuron and other specific herbicidal compounds are combined, but the herbicidal composition of the present invention described later is specifically described. Absent.

U.S. Patent Publication No. 4,746,353 International Publication WO03 / 024224 Specification Patent No. 3997278

  Currently, many herbicidal compositions have been developed and used, but weeds to be controlled have many types and have long-lasting occurrences, so weeds have a broader herbicidal spectrum, high activity and long lasting effects. The appearance of a composition is desired.

As a result of studies to solve the above-mentioned problems, the present inventors have found that (A) at least one compound selected from the group consisting of azimusulfuron or a salt thereof, and (B) pyrazoxifene, benzobicyclone, and caffeentrol. It has been found that a herbicidal composition having high practicality can be obtained by mixing the salt, and the present invention has been completed.
That is, the present invention relates to (A) azimusulfuron or a salt thereof (hereinafter abbreviated as Compound A) and (B) at least one compound selected from the group consisting of pyrazoxifene, benzobicyclon, and cavenstrol (hereinafter referred to as Compound B). And a herbicidal effective amount of the compound A, a method for controlling an undesirable plant or suppressing its growth, and applying a herbicidal effective amount of the compound A, The present invention relates to a method of applying an herbicidally effective amount to control undesirable plants or suppress their growth.

  The herbicidal composition of the present invention, that is, the herbicidal composition comprising Compound A and Compound B as active ingredients, can control a wide range of weeds on agricultural land or non-agricultural land. Each single herbicidal effect is more than an additive effect, ie, synergistic herbicidal effect. Such a herbicidal composition of the present invention not only can be applied at a lower dose than when each drug is applied alone, but the herbicidal spectrum is expanded, and further, the herbicidal effect is sustained over a long period of time.

When the herbicidal activity when combining two active ingredients is greater than the simple sum of the herbicidal activities of each of the two active ingredients (expected activity), this is called synergism. The activity expected by the combination of the two active ingredients can be calculated as follows (see Colby SR, “Weed” 15: 20-22, 1967).
E = α + β− (α × β ÷ 100)
α: Growth inhibitory rate β when herbicide X is treated with an amount of xg / 10a β; Growth inhibitory rate E when herbicide Y is treated with an amount of yg / 10a; Herbicide X is treated with xg / 10a and herbicide Growth inhibition rate expected when Y is treated with an amount of yg / 10a In other words, when the actual growth inhibition rate (actual value) is larger than the growth inhibition rate (calculated value) calculated above, the combined activity is synergistic. It can be said that it shows an action. The herbicidal composition of the present invention exhibits a synergistic effect when calculated by the above formula.

Compound A and compound B will be described in more detail.
Compound A is a generic name azimsulfuron (hereinafter abbreviated as Compound A1) or a salt thereof, and Compound A1 is a compound having the following chemical structure.

  The general name pyrazoxifene (hereinafter abbreviated as compound B1.1), which is one of the compounds B, is a compound exhibiting a plant pigment biosynthesis inhibitory action having the following chemical structure.

  One of the compounds B, the general name benzobicyclon (hereinafter abbreviated as compound B1.2), is a compound having the following chemical structure and an inhibitory effect on plant pigment biosynthesis.

  One of the compounds B, the general name caffeentrol (cafenstrole, hereinafter abbreviated as compound B2.1), is a compound having the following chemical structure and exhibiting cell mitosis inhibitory action.

  Examples of the salt of the compound A and the compound B include any one that is agriculturally acceptable, for example, alkali metal salts such as sodium salt and potassium salt; alkaline earth such as magnesium salt and calcium salt. Metal salts; ammonium salts such as dimethylammonium salt and triethylammonium salt; inorganic acid salts such as hydrochloride, perchlorate, sulfate and nitrate; organic acid salts such as acetate and methanesulfonate, etc. Is mentioned.

  The mixing ratio of Compound A, which is an active ingredient of the herbicidal composition of the present invention, and Compound B varies depending on various conditions such as formulation form, weather conditions, types of plants to be controlled and growth conditions, but cannot be specified unconditionally. Usually, compound B is as follows with respect to 1 part by weight of compound A.

Compound B1.1 is 1 to 600 parts by weight, preferably 5 to 300 parts by weight, and more preferably 40 to 175 parts by weight.
Compound B1.2 is 1 to 200 parts by weight, preferably 5 to 80 parts by weight, and more preferably 10 to 40 parts by weight.
Compound B2.1 is 1 to 600 parts by weight, preferably 5 to 300 parts by weight, and more preferably 5 to 150 parts by weight.

  The present invention also includes a herbicidal composition having the above-mentioned blending ratio and a method of applying an effective herbicidal amount of the composition to control undesirable plants or suppress their growth. In application, it is possible to arbitrarily select application to an undesired plant and application to a place where the plant grows (before or after occurrence of the plant).

  The application rate of the herbicidal composition of the present invention is unambiguously specified because it varies depending on various conditions such as the mixing ratio of the active ingredient Compound A and Compound B, the formulation form, weather conditions, the type of plant to be controlled and the growth status. However, compound A is usually 0.001 to 30 g / 10 a, desirably 0.01 to 3 g / 10 a, and compound B and the total application amount thereof are as follows.

Compound B1.1 is 0.5 to 2,000 g / 10 a, desirably 5 to 500 g / 10 a, and the total application amount with Compound A is 0.501 to 2,030 g / 10 a, desirably 5.01 to 503 g / 10 a.
Compound B1.2 is 0.1 to 5,000 g / 10 a, preferably 1 to 100 g / 10 a, and the total application amount with Compound A is 0.101 to 5,030 g / 10 a, preferably 1.01 to 103 g / 10 a.
Compound B2.1 is 0.1 to 1,000 g / 10 a, preferably 1 to 100 g / 10 a, and the total application amount with Compound A is 0.101 to 1,030 g / 10 a, preferably 1.01 to 103 g / 10 a.

  The present invention also includes a method in which Compound A and Compound B are applied at the aforementioned application rates, respectively, or are applied at the aforementioned appropriate application amounts to control unwanted plants or suppress their growth. In application, it is possible to arbitrarily select application to an undesired plant and application to a place where the plant grows (before or after occurrence of the plant).

The herbicidal composition of the present invention has a low dosage and a wide range of harmful plants such as annual and perennial weeds such as barnyardgrass ( Echinochloa crus-galli L., Echinochloa oryzicola vasing.), Crabgrass ( Digitaria sanguinalis L ., Digitaria ischaemum Muhl., Digitaria adscendens Henr., Digitaria microbachne Henr., Digitaria horizontalis Willd.)), green foxtail (green foxtail (Setaria viridis L.) ), giant foxtail (giant foxtail (Setaria faberi Herrm. )), Setaria pumila ( yellow foxtail (Setaria lutescens Hubb.) ), goosegrass (goosegrass (Eleusine indica L.)) , oats (wild oat (Avena fatua L.) ), Johnson grass (johnsongrass (sorghum halepense L.)) , quackgrass (quackgrass (Agropyron repens L.)), velvet millet (alexandergrass ( Brachiaria plantaginea )), guineagrass ( Panicum maximum Jacq.)), paragrass ( Panicum purpurascens )), azegaya (sprangletop ( Lepto chloa chinensis)), Itoazegaya (red sprangletop (Leptochloa panicea)) , annual bluegrass (annual bluegrass (Poa annua L.) ), foxtail (black grass (Alopecurus myosuroides Huds. )), Kamojigusa (cholorado bluestem (Agropyron tsukushiense (Honda ) Ohwi )), Mechiken'nikukibi (broadleaf signalgrass (Brachiaria platyphylla Nash) ), Shinkurinoiga (southern sandbur (Cenchrus echinatus L.) ), darnel (italian ryegrass (Lolium multiflorum Lam. )), Cynodon dactylon (bermudagrass (Cynodon dactylon Pers.) ) of such such weed grasses (gramineae); Cyperus Iria (rice flatsedge (Cyperus iria L.) ), purple nutsedge (purple nutsedge (Cyperus rotundus L.) ), yellow nutsedge (yellow nutsedge (Cyperus esculentus L.) ), bulrush (Japanese bulrush (Scirpus juncoides )), white squirrel (flatsedge ( Cyperus serotinus )), scallop (small-flower umbrellaplant ( Cyperus difformis )), pine bean (slender spikerush ( Eleocharis) acicularis)), water chestnut (water chestnut (Eleocharis kuroguwai)) Cyperaceae weeds (cyperaceae) such as; arrowhead (Japanese ribbon waparo (Sagittaria pygmaea) ), Alismataceae (arrow-head (Sagittaria trifolia) ), alisma canaliculatum (narrowleaf waterplantain ( Alisma canaliculatum)) Alismataceae weeds (alismataceae) such as; vaginalis (monochoria (monochoria vaginalis)), monochoria korsakowii (pontederiaceae weeds such as monochoria species (monochoria korsakowii)) ( pontederiaceae); false pimpernel (false pimpernel (Lindernia pyxidaria) ), Scrophulariaceae such as abunome ( Dopatrium junceum ); lythraceae (lythraceae) such as toothcup ( Rotala india ), red stem ( Ammannia multiflora ) (. Elatine triandra SCHK) long stem waterwort) elatinaceae weeds such as (elatinaceae);. velvetleaf (velvetleaf (Abutilon theophrasti MEDIC)) , candy Kakingojika (prickly sida (Sida spinosa L.) ) Malvaceae weeds such as (malvaceae); cocklebur (common cocklebur (Xanthium strumarium L.) ), ragweed (common ragweed (Ambrosia elatior L.) ), Ezo Roh fox thistle (thistle ( Breaa setosa (BIEB.) KITAM.)), Oysters (hairy galinsoga ( Galinsoga ciliata Blake)), chamomiles (wild chamomile ( Matricaria chamomilla L.)); black nightshade ( Solanum nigrum L.)), solanaceae such as jimsonweed ( Datura stramonium ); slender amaranth ( Amaranthus viridis L.), redroot pigweed ( Amaranthus retroflexus L.) Amaranthaceae weeds (Amaranthaceae) as; Sanaetade (pale smartweed (Polygonum lapathifolium L.) ), Harutade (ladysthumb (Polygonum persicaria L.)) , wild buckwheat (wild buckwheat (Polygonum convolvulus L.) ), Polygonum aviculare (knotweed (Polygonum a viculare L.)); Polygonaceeae; flexuous bittercress ( Cardamine flexuosa WITH.); nazuna (shepherd's-purse ( Capsella bursa-pastoris Medik.)); mustard ( Brassica juncea) Czern.)); Cruciferae; Malva morning glory (tall morningglory ( Ipomoea purpurea L.)), convolvulus (field bindweed ( Calystegia arvensis L.)), American morning glory (ivyleaf morningglory ( Ipomoea hederacea Jacq. )) Convolvulaceae weeds such as (Convolvulaceae); Chenopodium album (common lambsquarters (Chenopodium album L.) ), kochia (mexican burningbush (Kochia scoparia Schrad) ) Chenopodiaceae weeds (Chenopodiaceae), such as:. purslane (common purslane ( portulaca oleracea L.)) purslane weeds (Portulacaceae), such as; sicklepod (sicklepod (Cassia obtusifolia L.) leguminous weeds (leguminosae) such as); chickweed (common chickweed (Stellaria media L.) ) of such Caryophyllaceae weeds (caryophyllaceae); henbit (henbit (Lamium amplexicaule L.)) Labiatae weeds (labiatae) such as; cleavers (catchweed (Galium spurium L.)) Rubiaceae weeds such as (rubiaceae); Enokigusa (threeseeded Various harmful weeds such as Euphorbiaceae (euphorbiaceae) such as copperleaf ( Acalypha australis L.); Commelinaceae such as common dayflower ( Commelina communis L.) can be controlled. Moreover, even if it is applied before or after germination of weeds, it is possible to exert a good effect.

  The herbicidal composition of the present invention can be selected from various spraying forms of soil treatment, foliage treatment, and flooding treatment, and can be selected from farmland such as upland, orchards, and paddy fields, or shores and fallow land. It is useful for the control of harmful plants in non-agricultural land such as playgrounds, vacant lots, forests, factory sites, tracksides, and roadsides.

  Further, as long as it meets the purpose of the present invention, other herbicidal active ingredients can be contained in addition to the above-mentioned active ingredients, whereby the range of applicable grass species, the timing of chemical treatment, the herbicidal activity, etc. are more preferable. May improve in the direction. Examples of the other herbicidal active ingredients include the following compounds (generic names: partially including those currently in ISO application or development code), but even if not specifically described, these compounds have salts, If alkyl esters, hydrates, different crystal forms, various structural isomers, etc. are present, they are naturally included.

  (1) 2,4-D, 2,4-D-butotyl, 2,4-D-butyl, 2,4-D dimethylammonium (2 , 4-D-dimethylammonimum), 2,4-D-diolamine (2,4-D-diolamine), 2,4-D-ethyl, 2,4-D-2-ethylhexyl (2,4-D-2-ethylhexyl), 2,4-D-isobutyl, 2,4-D-isooctyl, 2,4-D-isopropyl (2,4-D-isopropyl), 2,4-D-isopropylammonium, 2,4-D sodium (2,4-D-sodium), 2,4-D isopropanolammonium (2,4-D-isopropanolammonium), 2,4-D-trolamine (2,4-D-trolamine), 2,4-DB, 2,4-DB-butyl, 2, , 4-DB-dimethylammonium, 2,4-DB iso-o Chill (2,4-DB-isoctyl), 2,4-DB potassium (2,4-DB-potassium), 2,4-DB sodium (2,4-DB-sodium), dichloroprop (dichlorprop), dichloro Propbutyl (dichlorprop-butotyl), dichloroprop-dimethylammonium, dichloroprop-isoctyl, dichlorprop-potassium, dichloroprop-P, dichloroprop -P dimethylammonium, dichloroprop-P-potassium, dichloroprop-P-sodium, MCPA, MCPA-butotyl, MCPA dimethyl Ammonium (MCPA-dimethylammonium), MCPA-2-ethylhexyl, MCPA potassium MCPA-potassium), MCPA sodium (MCPA-sodium), MCPA thioethyl (MCPA-thioethyl), MCPB, MCPB ethyl (MCPB-ethyl), MCPB sodium (MCPB-sodium), mecoprop (mecoprop), mecoprop butyl (mecoprop -butotyl), mecoprop-sodium, mecoprop-P, mecoprop-P-butotyl, mecoprop-P-dimethylammonium, mecoprop-P Phenoxy systems such as 2-ethylhexyl, mecoprop-P-potassium, naproanilide, and clomeprop; 2,3,6-TBA, dicamba (Dicamba), dicamba-butotyl, dicamba-diglycolamine Dicamba-dimethylammonium, dicamba-diolamine, dicamba-isopropylammonium, dicamba-potassium, dicamba-sodium, diclobenil ( dichlobenil, picloram, picloram-dimethylammonium, picloram-isoctyl, picloram-potassium, picloram-triisopropanolammonium ), Picloram-triisopropylammonium, picloram-trolamine, triclopyr, triclopyr-butotyl, triclopyr-trietammonium (triclopyr-triet) aromatic carboxylic acids such as hylammonium, clopyralid, clopyralid-olamine, clopyralid-potassium, clopyralid-triisopropanolammonium, aminopyralid; other naptalams (Naptalam), sodium naptalam (naptalam-sodium), benazolin, benazolin-ethyl, quinclorac, quinmerac, diflufenzopyr, diflufenzopyr Pyrsodium (diflufenzopyr-sodium), fluoxypyr (fluroxypyr), fluoxypyr-2-butoxy-1-methylethyl (fluroxypyr-2-butoxy-1-methylethyl), fluoxypyrmeptyl (fluroxypyr-meptyl), chloroflurenol ( chlorflurenol) Chloro Hulhule Nord methyl (chlorflurenol-methyl) What is showing a herbicidal activity by disrupting hormone action in plants, such as.

  (2) chlorotoluron, diuron, fluometuron, linuron, isoproturon, metobenzuron, tebuthiuron, dimefuron, isouron, isouron Ureas such as karbutilate, methabenzthiazuron, metoxuron, monolinuron, neburon, siduron, terbumeton, trietazine; simazine (Simazine), atrazine, atratone, simetryn, promethrin, dimethametryn, hexazinone, metribuzin, terbuthylazine, cyananadin e) Triazines such as ametryn, cybutryne, triaziflam, terbutryn, propazine, metamitron, prometon; bromacil, bromacil Uracils like lithium (bromacyl-lithium), lenacil, terbacil; anilides like propanil, cypromid; swep, desmedipham, fen Carbamates such as phenmedipham; bromoxynil, bromoxynil-octanoate, bromoxynil-heptanoate, ioxynil, ioxynyloctano Ate (ioxynil-octanoate) Hydroxybenzonitriles such as ioxynil-potassium, ioxynil-sodium; other pyridates, bentazone, bentazone-sodium, amicarbazone, methazole ( Methazole), pentanochlor (pentanochlor), etc. that are said to show herbicidal efficacy by inhibiting plant photosynthesis.

  (3) Quaternary ammonium salt systems such as paraquat and diquat, which are said to themselves become free radicals in the plant body and generate active oxygen to show rapid herbicidal efficacy.

  (4) Nitrofen, Chlomethoxyfen, bifenox, acifluorfen, acifluorfen-sodium, fomesafen, fomesafen-sodium ), Oxyfluorfen, lactofen, aclonifen, ethoxyfen-ethyl, HC-252, fluoroglycofen-ethyl, fluoroglycofen Diphenyl ether type: Chlorphthalim, flumioxazin, flumiclorac, flumiclorac-pentyl, cinidon-ethyl, fluthiacet-methyl Other cyclic imides; other oxadiargyl, oxadiazon, sulfentrazone, carfentrazone-ethyl, thidiazimin, pentoxazone, azafenidin, Isopropazole, pyraflufen-ethyl, benzfendizone, butafenacil, saflufenacil, saflufenacil, flupoxam, fluazolate, profluazol ), Pyraclonil, flufenpyr-ethyl, bencarbazone, and other substances that inhibit the biosynthesis of plants and cause abnormal accumulation of photosensitized peroxides in the plant body. Shows herbicidal efficacy What is being

  (5) pyridazinones such as norflurazon, chloridazon, metflurazon; pyrazolynate, pyrazoloxyfen, benzofenap, topramezone, BAS-670H, pyra Pyrazoles such as pyrasulfotole; other amitrole, fluridone, flurtamone, diflufenican, methoxyphenone, clomazone, sulcotrione, Mesotrione, tembotrione, tefuryltrione, AVH-301, isoxaflutole, difenzoquat, difenzoquat methyl sulfate (d Inhibits pigment biosynthesis of carotenoids such as ifenzoquat-metilsulfate, isoxachlortole, benzobicyclon, picolinafen, biflubutamide (beflubutamid), etc. It is supposed to show herbicidal efficacy.

  (6) Dicloofop-methyl, diclofop, pyriphenop-sodium, fluazifop-butyl, fluazifop, fluazifop-P (fluazifop-P) Fluazifop-P-butyl, haloxyfop-methyl, haloxyfop, haloxyfop-etotyl, haloxyfop-P, haloxyhop -P-methyl, quizalofop-ethyl, quizalofop-P, quizalofop-P-ethyl, quizalofop-P-ethyl (quizalofop-P-ethyl) quizalofop-P-tefuryl), cyhalofop-butyl, fenoxaprop-ethyl, phenoxaprop-P fenoxaprop-P), fenoxaprop-P-ethyl, metamifop-propyl, metamifop, clodinafop-propargyl, clodinafop, Aryloxyphenoxypropionic acid systems such as propaquizafop; alloxydim-sodium, alloxydim, clethodim, sethoxydim, tralkoxydim, butroxydim, Cyclohexanediones such as tepraloxydim, profoxydim, cycloxydim; others, flamprop-M-methyl, flamprop-M, flamprop Prop-M-isopropyl ( flamprop-M-isopropyl), etc., which have a strong herbicidal effect specifically on gramineous plants.

  (7) Chlorimuron-ethyl, chlorimuron, sulfometuron-methyl, sulfometuron, primisulfuron-methyl, primisulfuron, Bensulfuron-methyl, bensulfuron, chlorsulfuron, methsulfuron-methyl, metsulfuron, cinosulfuron, pyrazosulfuron-ethyl , Pyrazosulfuron, flazasulfuron, rimsulfuron, nicosulfuron, imazosulfuron, cyclosulfamuron, prosulfuron, flupirsulfuron Chilly sodium (flupyrsulfuron-methyl-sodium), flupirsulfuron (flupyrsulfuron), triflusulfuron-methyl (triflusulfuron-methyl), triflusulfuron (triflusulfuron), halosulfuron-methyl, halosulfuron (halosulfuron), chi Fensulfuron-methyl, thifensulfuron, ethoxysulfuron, oxasulfuron, ethametsulfuron, ethametsulfuron-methyl, iodosulfuron (Iodosulfuron), sodium iodosulfuron-methyl-sodium, sulfosulfuron, triasulfuron, tribenuron-methyl, tribenuron, tritosulfuron ( tritosul furon, forumsulfuron, trifloxysulfuron, trifloxysulfuron-sodium, mesosulfuron-methyl, mesosulfuron, orthosulfamuron Sulfonylureas such as the compounds described in flucetosulfuron, amidosulfuron, TH-547, international publication WO2005092104; flumetsulam, metosulam, diclosulam, Triazolopyrimidinesulfonamides such as cloransulam-methyl, florasulam, penoxsulam; imazapyr, imazapyr-isopropylammonium ), Imazethapyr, imazethapyr-ammonium, imazaquin, imazaquin-ammonium, imazamox, imazamox-ammonium, imazamethabenz (imazamethabenz) ), Imazamethabenz-methyl, imidazolinones such as imazapic; pyrithiobac-sodium, bispyribac-sodium, pyriminobac pyrimidinylsalicylic acid series such as -methyl), pyribenzoxim, pyrifalid, pyrimisulfan, KUH-021; flucarbazone, flucarbazone-sodium, propoxycarbazo Sulfonylaminocarbonyltriazolinones such as sodium (propoxycarbazone-sodium), propoxycarbazone; other glyphosate, glyphosate-sodium, glyphosate-potassium, glyphosate ammonium (glyphosate) -ammonium), glyphosate-diammonium, glyphosate-isopropylammonium, glyphosate-trimesium, glyphosate-sesquisodium, glufosinate, glufosinate ammonium Inhibits plant amino acid biosynthesis, such as ammonium, vilanafos, bilanafos-sodium, cinmethylin What is showing the herbicidal effect by.

  (8) Trifluralin, oryzalin, oryzalin, nitalin, pendimethalin, ethalluralin, benfluralin, prodiamine, butralin, dinitramine ( dinitroaniline such as dinitramine); amide such as bensulide, napropamide, propyzamide, pronamide; amiprofos-methyl, butamifos, anilophos (Anilofos), organic phosphorus systems such as piperophos; phenyl carbamate systems such as propham, chlorpropham, barban, carbetamide; daimuron, cumylron ( cumyluron), Bromob Cumylamines such as bromobutide, methyldymron; other asuram, asuram-sodium, dithiopyr, thiazopyr, chlorthal-dimethyl, chlortal (Chlorthal), diphenamid (diphenamid), etc. that are said to show herbicidal efficacy by inhibiting plant cell mitosis.

  (9) alachlor, metazachlor, butachlor, pretilachlor, metolachlor, S-metolachlor, tenylchlor, petoxamide Chloroacetamides such as acetochlor, propachlor, dimethenamid, dimethenamid-P, propisochlor, dimethachlor; molinate, Dimepiperate, pyributicarb, EPTC, butyrate, vernolate, pebulate, cycloate, prosulfocarb, esprocarb, thiobencar Thiocarbamate systems such as thiobencarb, diallate, tri-allate, orbencarb; other etobanzanid, mefenacet, flufenacet, toridiphan (Tridiphane), caffenstrole, fentrazamide, oxaziclomefone, indanofan, benfuresate, pyroxasulfone, KIH-485, dalapon, dalapon What is said to show herbicidal efficacy by inhibiting plant protein biosynthesis or lipid biosynthesis, such as sodium (dalapon-sodium), TCA sodium (TCA-sodium), and trichloroacetic acid.

  (10) MSMA, DSMA, CMA, endothal (endothall), endothal dipotassium, endothal sodium (endothall-sodium), endtal mono (N, N-dimethylalkylammonium) (endothall-mono ( N, N-dimethylalkylammonium)), etofumesate, sodium chlorate, pelargonic acid, nonanoic acid), phosamine, fosamine-ammonium, pinoxaden ( pinoxaden), HOK-201, aclolein, ammonium sulfamate, borax, chloroacetic acid, sodium chloroacete, cyanamide, methylarsonic acid), dimethylarsone Acid (dimethylarsinic acid), sodium dimethylarsinate, dinoterb, dinoterb-ammonium, dinoterb-diolamine, dinoterb-acetate, DNOC, Ferrous sulfate, flupropanate, sodium flupropanate (flupropanate-sodium), isoxaben, mefluidide, mefluidide-diolamine, metam ), Metam-ammonium, metam-potassium, metam-sodium, methyl isothiocyanate, pentachlorophenol, sodium pentachlorophenoxide , Penta Lolo phenol laurate (pentachlorophenol laurate), quinoclamine (quinoclamine), sulfuric acid (sulfuric acid), such as urea sulfate (urea sulfate).

(11) Xanthomonas campestris (Xanthomonas campestris), epi heart Sils Nematosorusu (Epicoccosirus nematosorus), epi heart Sils Nematosuperasu (Epicoccosirus nematosperus), Ekiserohiramu monoceras (Exserohilum monoseras), parasitic plants such as Drechslera monoceras (Drechsrela monoceras) It is supposed to show herbicidal efficacy by doing.

  The herbicidal composition of the present invention comprises compound A or compound B, which is an active ingredient, blended with various adjuvants in accordance with a general agricultural chemical formulation method, and powder, granule, granule wettable powder, wettable powder, Various types of tablets, pills, capsules (including forms packaged with water-soluble films), aqueous suspensions, oily suspensions, microemulsions, suspoemulsions, aqueous solvents, emulsions, liquids, pastes, etc. However, as long as it meets the purpose of the present invention, it can be any pharmaceutical form commonly used in the art.

  In preparation of the preparation, Compound A and Compound B may be mixed together to prepare the preparation, or they may be prepared separately and mixed at the time of application.

  Adjuvants used in the formulation include solid carriers such as kaolinite, sericite, diatomaceous earth, slaked lime, calcium carbonate, talc, white carbon, kaolin, bentonite, clay, sodium carbonate, sodium bicarbonate, sodium sulfate, zeolite, starch; water Solvent such as toluene, xylene, solvent naphtha, dioxane, acetone, isophorone, methyl isobutyl ketone, chlorobenzene, cyclohexane, dimethyl sulfoxide, N, N-dimethylformamide, dimethylacetamide, N-methyl-2-pyrrolidone, alcohol; Salt, benzoate, polycarboxylate, alkyl sulfate, alkyl sulfate, alkyl aryl sulfate, alkyl diglycol ether sulfate, alcohol sulfate, alkyl sulfonate, alkyl aryl Sulfonate, aryl sulfonate, lignin sulfonate, alkyl diphenyl ether disulfonate, polystyrene sulfonate, alkyl phosphate ester salt, alkyl aryl phosphate, styryl aryl phosphate, polyoxyethylene alkyl ether sulfate Salt, polyoxyethylene alkylaryl ether sulfate, polyoxyethylene alkylaryl ether sulfate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkylaryl phosphate, polyoxyethylene aryl ether phosphate, Anionic surfactants such as salts of naphthalene sulfonic acid formalin condensate, alkyl naphthalene sulfonic acid formalin condensate; sorbitan fatty acid ester, glycerin Fatty acid ester, fatty acid polyglyceride, fatty acid alcohol polyglycol ether, acetylene glycol, acetylene alcohol, oxyalkylene block polymer, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl aryl ether, polyoxyethylene glycol alkyl Nonionic surfactants such as ether, polyethylene glycol, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxypropylene fatty acid ester; olive oil, Kapok oil, castor oil, palm oil, straw oil, coconut oil, sesame oil, corn oil, rice bran oil, drop Raw oil, cottonseed oil, soybean oil, rapeseed oil, linseed oil, tung oil, vegetable oil or mineral oil and the like, such as liquid paraffin. Each component of these adjuvants can be used by appropriately selecting one or two or more types without departing from the object of the present invention. In addition to the above-mentioned adjuvants, it can be used by appropriately selecting from those known in the art. Various commonly used adjuvants such as an agent, an antifungal agent, a foaming agent, a disintegrant, and a binder can also be used. The blending ratio of the active ingredient and various adjuvants in the herbicidal composition of the present invention can be about 0.001: 99.999 to 95: 5, preferably about 0.005: 99.995 to 90:10.

Various methods can be adopted as the application method of the herbicidal composition of the present invention, and it can be properly used depending on various conditions such as application place, formulation form, type of plant to be controlled and growth situation, for example, as follows: The method is mentioned.
1. Compound A and Compound B are mixed together, and the preparation prepared is applied as it is.
2. Compound A and Compound B are mixed together, the preparation prepared is diluted with water to a predetermined concentration, and various spreading agents (surfactant, vegetable oil, mineral oil, etc.) are added as necessary. Apply.
3. Compound A and compound B are prepared separately and applied as they are.
4). Compound A and Compound B are prepared separately, each is diluted to a predetermined concentration with water or the like, and various spreading agents (surfactant, vegetable oil, mineral oil, etc.) are added and applied as necessary. .
5). Compound A and Compound B prepared separately are mixed when diluted to a predetermined concentration with water or the like, and various spreading agents (surfactant, vegetable oil, mineral oil, etc.) are added as necessary. Apply.

  Next, some are illustrated as desirable aspects of the present invention. However, the present invention is not limited to these.

(1) applying a herbicidal composition containing (A) compound A and (B) compound B1.1 or a salt thereof, and a herbicidally effective amount of the herbicidal composition to control undesired plants or suppress their growth how to.
(2) A method of applying an herbicidally effective amount of (A) compound A and (B) an herbicidally effective amount of compound B1.1 or a salt thereof to control undesired plants or suppress their growth.
(3) A herbicidal composition containing (A) compound A and (B) compound B1.2 or a salt thereof, and applying a herbicidally effective amount of the herbicidal composition to control or inhibit the growth of undesirable plants how to.
(4) A method of controlling an undesirable plant or suppressing its growth by applying a herbicidally effective amount of (A) compound A and (B) a herbicidally effective amount of compound B1.2 or a salt thereof.
(5) A herbicidal composition containing (A) compound A and (B) compound B2.1 as an active ingredient, and applying a herbicidally effective amount of the herbicidal composition to control or suppress the growth of undesirable plants. Method.
(6) A method of applying an herbicidally effective amount of (A) compound A and (B) an herbicidally effective amount of compound B2.1 to control unwanted plants or suppress their growth.

(7) containing (A) compound A and (B) at least one compound selected from the group consisting of compound B1.1 and compound B1.2, or a salt thereof, which is a compound exhibiting plant pigment biosynthesis inhibitory activity A herbicidal composition, a method of applying an herbicidally effective amount of the herbicidal composition to control unwanted plants or suppress their growth.
(8) (A) herbicidally effective amount of compound A, and (B) at least one compound selected from the group consisting of compound B1.1 and compound B1.2, which are compounds exhibiting plant pigment biosynthesis inhibitory activity, or a compound thereof A method of applying a herbicidally effective amount of salt to control unwanted plants or suppress their growth.
(9) Applying a herbicidal composition containing compound A1, compound B1.1, compound B1.2 and compound B2.1, a herbicidally effective amount of the herbicidal composition, and controlling or inhibiting the growth of undesirable plants Method.
(10) A method of applying an effective herbicidal amount of Compound A1, Compound B1.1, Compound B1.2 and Compound B2.1 to control undesirable plants or suppress their growth.
(11) A herbicidal composition further containing another herbicidal active ingredient in the herbicidal composition described in (1), (3), (5), (7) or (9), and the herbicidal composition A method of applying an herbicidally effective amount to control undesirable plants or suppress their growth.
(12) In the method for controlling an undesirable plant or suppressing its growth described in the above (2), (4), (6), (8) or (10), further herbicidal active ingredient Said method of applying an effective amount.

Test example 1
Paddy soil was put in a 1 / 10,000 arepot, and a tuber of a bittersweet tree was planted. When standing under submerged conditions with a water depth of 3.5 cm, and when the leaf age of the white pods reaches 2.6-3.2 leaf stages, each of compound A1, compound B1.1, compound B1.2 and compound B2.1 wettable powder Was diluted with water and each was treated dropwise to achieve a predetermined dosage. The growth state was observed with the naked eye on the 40th day after treatment, and the growth inhibition rate (%) evaluated according to the following evaluation criteria (measured value) and the growth inhibition rate (%) calculated by the Colby method [calculation] Values] are shown in Table 1.
Growth inhibition rate (%) = 0% (equivalent to untreated area) to 100% (complete death)

Test example 2
Paddy soil was put in a 1 / 10,000 arepot, and seeds of nobies were sown. When the leaves are kept under submerged conditions with a depth of 3.5 cm and the Nobier leaf age reaches 1.3 to 2.0 leaf stages, the wettable powders of Compound A1 and Compound B1.2 are diluted with water, Each was treated dropwise. The growth state was observed with the naked eye on the 31st day after the treatment, and evaluated and calculated in the same manner as in Test Example 1 to obtain the results shown in Table 2.

Test example 3
Paddy soil was put in a 1 / 10,000 arepot, and seeds of nobies were sown. When standing under submerged conditions with a water depth of 3.5 cm and the leafy age of Nobie reaching 2.5-3.1 leaf stage, each of compound A1, compound B1.1, compound B1.2 and compound B2.1 is a wettable powder. Was diluted with water and each was treated dropwise to achieve a predetermined dosage. The growth state was observed with the naked eye on the 28th day after treatment, and evaluated and calculated in the same manner as in Test Example 1 to obtain the results shown in Table 3.

Test example 4
Paddy soil was put in a 1 / 10,000 arepot, and a tuber of a bittersweet tree was planted. When standing under submerged conditions with a water depth of 3.5 cm and the leaf age of the white bittern reaches 2.2-3.1 leaf stage, dilute each of the wettable powders of Compound A1 and Compound B1.1 with water. Each was treated dropwise. The growth state was observed with the naked eye on the 12th day after the treatment, and evaluated and calculated in the same manner as in Test Example 1 to obtain the results shown in Table 4.

Test Example 5
Paddy soil was put in a 1 / 10,000 arepot, and a tuber of a bittersweet tree was planted. When standing under submerged conditions with a water depth of 3.5 cm, and when the leaf age of the scallion reaches 2.4-3.0 leaf stages, the wettable powders of Compound A1 and Compound B2.1 are diluted with water to give the prescribed dosage. Each was treated dropwise. The growth state was observed with the naked eye on the 21st day after the treatment, and evaluated and calculated in the same manner as in Test Example 1 to obtain the results shown in Table 5.

Claims (9)

A herbicidal composition containing (A) azimusulfuron or a salt thereof, and (B) at least one compound selected from the group consisting of pyrazoxifene, benzobicyclon, and caffeentrol, or a salt thereof. The herbicidal composition according to claim 1, wherein (B) is pyrazoxifene or a salt thereof. The herbicidal composition according to claim 1, wherein (B) is benzobicyclone or a salt thereof. 2. The herbicidal composition according to claim 1, wherein (B) is caffeine troll or a salt thereof. A method for applying an herbicidally effective amount of the herbicidal composition according to claim 1 to control undesired plants or suppress their growth. Applying (A) an herbicidally effective amount of azimusulfuron or a salt thereof and (B) an herbicidally effective amount of at least one compound selected from the group consisting of pyrazoxifene, benzobicyclon, and caffeentrol, or a salt thereof, A method for controlling or inhibiting the growth thereof. A herbicidal composition containing azimusulfuron, pyrazoxifene, benzobicyclon, and caffeentrol. A method for controlling an undesirable plant or suppressing its growth by applying a herbicidally effective amount of the herbicidal composition according to claim 7. A method of controlling an undesirable plant or suppressing its growth by applying each herbicidally effective amount of azimusulfuron, pyrazoxifene, benzobicyclon and fenfentrol.