CN114027316A - Weeding composition containing metazosulfuron and oxyfluorfen and application thereof - Google Patents

Weeding composition containing metazosulfuron and oxyfluorfen and application thereof Download PDF

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Publication number
CN114027316A
CN114027316A CN202111652753.7A CN202111652753A CN114027316A CN 114027316 A CN114027316 A CN 114027316A CN 202111652753 A CN202111652753 A CN 202111652753A CN 114027316 A CN114027316 A CN 114027316A
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oxyfluorfen
compound
metazosulfuron
composition containing
herbicidal composition
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罗昌炎
詹姆斯.T.布里斯托
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Jiangsu Rotam Chemical Co Ltd
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Jiangsu Rotam Chemical Co Ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
    • A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
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  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to the field of agriculture, in particular to a weeding composition containing metazosulfuron and oxyfluorfen; also relates to the use of said herbicidal compositions for controlling undesired plant germination or growth. A weeding composition containing metazosulfuron and oxyfluorfen comprises active components consisting of a compound (A) and a compound (B); wherein the compound (A) is metazosulfuron or its salt; the compound (B) is oxyfluorfen, and is characterized in that: the weight ratio of the compound (A) to the compound (B) is 1:15-1: 60. A herbicidal composition containing metazosulfuron and oxyfluorfen achieves the "synergistic" action on weed control required by the skilled person in a particularly advantageous manner, even including certain weed species which are difficult to control. Moreover, application of the compositions according to the invention makes it possible to significantly reduce the application rates of the individual components of the combination and to reduce the phytotoxicity to the crop plants.

Description

Weeding composition containing metazosulfuron and oxyfluorfen and application thereof
The application is a divisional application with the application number of 201611223517.2, the application date of 2016, 12 and 27, and the title of the invention is "a herbicidal composition and application thereof".
Technical Field
The invention relates to the field of agriculture, in particular to a weeding composition containing metazosulfuron and oxyfluorfen; also relates to the use of said herbicidal compositions for controlling undesired plant germination or growth.
Background
The crop production in the world is greatly lost due to diseases, insects and weeds every year, the crops are almost damaged by various weeds in the whole growing season, and the weed damage is also a key factor for restricting the crop yield. Thus, the control of agricultural weeds has been a major concern and important issue in agricultural production.
The use of chemical herbicides is one of the important marks of modern agriculture, and in recent years, the sale amount of herbicides has increased year by year and the application area has also expanded year by year. However, with the continuous use of large areas of numerous herbicide species, numerous problems arise, such as the onset of emergence of weed resistance problems, particularly of resistance problems in older weeds; in addition, the single herbicide has single action mode, short lasting period and the like. Thus, there is an urgent need for long-acting herbicides and combinations thereof that have a broad herbicidal spectrum, are highly selective, and are less stressful for weed resistance.
Disclosure of Invention
The object of the present invention is to provide a herbicidal composition containing metazosulfuron and oxyfluorfen, which in a particularly advantageous manner achieves the "synergistic" action on weed control required by the skilled worker, even including certain weed species which are difficult to control, in view of the above-mentioned disadvantages. Moreover, application of the compositions according to the invention makes it possible to significantly reduce the application rates of the individual components of the combination and to reduce the phytotoxicity to the crop plants.
By "synergistic" action is meant that in some instances the herbicidal active ingredients have been shown to be more effective when applied in combination than when applied individually. "synergistic" action means that two or more factors interact such that the effect when combined is greater than would be expected based on the response of each factor when applied separately.
The invention relates to a weeding composition, the active component consists of a compound (A) and a compound (B); wherein the compound (A) is metazosulfuron or its salt; the compound (B) is oxyfluorfen.
The weight ratio of the compound (A) to the compound (B) is 1:1 to 1:100, preferably 1:1 to 1:90, more preferably 1:1 to 1:80, more preferably 1:1 to 1:70, more preferably 1:1 to 1:60, more preferably 1:1 to 1:55, more preferably 1:1 to 1:50, more preferably 1:1 to 1:40, more preferably 1:1 to 1:30, more preferably 1:15 to 1: 60.
The weight range of the compound (A) and the compound (B) may also be 1:1 to 1:100, preferably 1:1 to 1:90, more preferably 1:1 to 1:80, more preferably 1:1 to 1:70, more preferably 1:1 to 1:60, more preferably 1:1 to 1:55, more preferably 1:1 to 1:50, more preferably 1:1 to 1:40, more preferably 1:1 to 1:30, more preferably 1:1 to 1:25, more preferably 1:1 to 1:20, more preferably 1:1 to 1:15, more preferably 1:1 to 1: 10.
The weight ranges of the compound (A) and the compound (B) may also be 1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:21,1:22,1:23,1:24,1:25,1:26,1:27,1:28,1:29,1:30,1:31,1:32,1:33,1:34,1:35,1:36,1:37,1:38,1:39,1:40,1:41,1:42,1:43,1:44,1:45,1:46,1:47,1:48,1:49,1:50,1:55,1: 65,1:70,1: 85,1: 95: 80,1:85,1: 6, 1:100.
The invention also provides a weeding composition, wherein the active component consists of the compound (A) and the compound (B), and the content of the compound (A) and the compound (B) accounts for 1 to 90 percent of the weeding composition, preferably 5 to 80 percent, more preferably 5 to 70 percent, more preferably 5 to 60 percent, and more preferably 5 to 50 percent; the compound (A) is metazosulfuron or salt thereof; the compound (B) is selected from oxyfluorfen.
The invention also provides a weeding composition containing metazosulfuron and oxyfluorfen, and the active components of the weeding composition consist of a compound (A) and a compound (B), wherein the content of the compound (A) and the compound (B) in the weeding composition can be 1%, 3%, 5%,7%,8%,9%,10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85% and 90%.
The invention also provides a weeding composition, the active components of which consist of the compound (A) and the compound (B), and the weeding composition also comprises a filling agent and/or a surfactant.
The weeding composition containing the metazosulfuron and the oxyfluorfen is in the dosage forms of wettable powder, water-soluble granules, water-soluble liquid, missible oil, suspending agents, microcapsules, microemulsions, aqueous emulsions, suspoemulsions, microcapsule suspension-suspending agents, water dispersible granules, ultra-low volume liquid, tablets, low volume dispersible granules, pills or dry suspending agents and granules.
The weeding composition containing metazosulfuron and oxyfluorfen also contains a herbicide safener if necessary.
The herbicide safener is selected from 1, 8-naphthalic anhydride (1, 8-naphtalene dicarboxycarbyl anhydride), Benoxacor (Benoxacor), Cloquintocet-mexyl (Cloquintocet-mexyl), Fenchlorazole (Fenchlorazole-ethyl), furazol (Furilazole), Benoxacor (2-dicholomethyl-2-methyl-1, 3-dioxolone), chloracetonil (cyclotrinil), oxanilide (Oxalinil), fluxofenam (Fluxofenam), Fenclorim (Fenclorim), fluquinalone (Flurazole) or cumylene (Acetamide), Isoxadifen (Ruxadifen), pyraclonil (fenpyr-diethyl), cloquinate (Cloquinol-mexyl), dichlorpropenyl (Isopropyzamide), dichlorphenamide (Chlorpyriproxyfen), benazolate (bensul-mefenozide), Benoxacor (Mefenozide), pyriproxyfen (benazol-ethyl), pyriproxyfen (benazolidone (benazolone), pyriproxyfen (benazolidone), pyriproxyfen (benazolidone), pyriproxyfen (benazolidone (benazol-ethyl), pyriproxyfen (benazol), pyriproxyfen (benazolidone), pyriproxyfen (benazolidone (benazol), pyriproxyfen (benazol), pyrimethanil), pyriproxyfen (benazolidone), pyributrin), pyriproxyfen (benazol), pyriproxyfen (benazolidone (benazol), pyriproxyfen (benazol), pyributrin), pyriproxyfen (benazol), pyriproxyfen (benazolidone (benazol), pyributrin), pyrimethanil), pyributrin (benazolidone (benazol-ethyl), pyributrin (benazolidone (benazol), pyributrin (benazol-ethyl ester (benazol), pyributrin), pyrimethanil (benazol (benbenbenbenbenbenbenbenbenbenbenbenazol-pyrimethanil), pyrimethanil (benbenazol (benazol (benbenbenbenazol (benazol (ben (benbenbenbenazol (ben (benazol (benbenbenbenbenbenbenbenbenbenbenbenben (ben-ethyl ester (benbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenazol (benbenbenbenazol (benbenbenbenbenazol, pyrimethanil), at least one of Isoxadifen-ethyl and N-phenyl-sulfonyl benzoic acid amide.
The herbicidal compositions containing metazosulfuron and oxyfluorfen according to the invention may also comprise various active compounds of other components, for example selected from fungicides, insecticides, acaricides, nematocides, bird repellents, soil structure improvers, plant nutrients (fertilizers), and herbicides having a structure different from that of compound (a) and compound (B), and plant growth regulators.
The herbicidal composition of the present invention may further comprise a liquid fertilizer or a solid fertilizer.
An application of a weeding composition containing metazosulfuron and oxyfluorfen in preventing and controlling undesired plant germination or growth.
An application of a weeding composition containing metazosulfuron and oxyfluorfen in preventing and treating the undesirable plant germination or growth of grassy weeds, sedge weeds and broadleaf weeds.
The herbicidal compositions of the present invention containing metazosulfuron and oxyfluorfen exhibit a synergistic effect on barnyard grass (Echinochloa crus _ galli (L.) P. Beauv.), green bristlegrass (Setaria virdis (L.) Beauv.), crab grass (Digitaria sanguinalis (L.) Scop.), Japanese stephania japonica (Leptochloa chinensis), wild oat grass (Avenfatua L.), Chenopodium album L., chickweed (Stellaria media (L.) Cyr.), iris japonica (Stringula japonica (L.), Irish bur. Media (L.), Irish gracilaria japonica (Schoenopectus juncoides Roxb.), Cyperus grass (Cyperus diffromis L.), Anas tongue (Monochoria variegata), and oxyfluorfen (Avenus niva) at a rate lower than that of synergistic effect of individual Echinacea, and Veronica (Avenula. sativa), and a black grass (Avenula. origin) when applied separately.
The weeding composition containing metazosulfuron and oxyfluorfen can be used for controlling undesirable plants at the following positions: direct seeded, water seeded and transplanted rice, cereals, wheat, barley, rye, sorghum, corn, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, pastures, grasslands, fallowland, turf, tree or vine orchards, aquatics, plantation crops, vegetables, industrial vegetation management or rights-of-way.
The herbicidal composition containing metazosulfuron and oxyfluorfen of the invention can be particularly used for preventing and controlling the germination or growth of undesirable plants such as gramineous plants, sedge plants and broad-leaved plants in direct sowing, water sowing and transplanting rice, wheat, barley, rye, rape, canola, beet, corn, turf, cotton, vegetables, sugarcane and soybean crops.
The herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention is used for controlling undesired plant germination or growth in crops of useful plants, and is tolerated by the crops of useful plants.
A method of controlling undesirable vegetation comprising: (i) applying a herbicidally effective amount of the herbicidal composition of the present invention to the undesired plants or to the locus thereof before germination (pre-emergence), (ii) after germination (post-emergence), or (iii) at both (i) and (ii).
A method for controlling undesired plants, which comprises contacting the undesired plants or their growing locus with a herbicidally effective amount of the herbicidal composition containing metazosulfuron and oxyfluorfen. A herbicidally effective amount refers to the amount of the herbicidally active ingredient that is applied to control undesirable vegetation.
The weeding composition containing metazosulfuron and oxyfluorfen is applied to the undesirable plants or the growing field thereof so as to prevent the undesirable plants from sprouting or growing.
A method for controlling undesired plants, applying the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention to soil or water to control the germination or growth of undesired plants.
The compound (A) and the compound (B) in the herbicidal composition containing metazosulfuron and oxyfluorfen are applied to undesired plants or a growing field thereof together or separately so as to control the germination or growth of the undesired plants.
A method for controlling undesired plants, wherein the compound (A) and the compound (B) in the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention are applied to soil or water together or separately to control the germination or growth of undesired plants.
A method for controlling undesired vegetation, which comprises applying the herbicidal composition comprising metazosulfuron and oxyfluorfen of the present invention in the presence of the plants of the crops of useful plants, the seeds of the crops of useful plants or other propagating parts of the crops of useful plants.
A method for controlling undesired plants, which comprises adding the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention to irrigation water and applying it to the undesired plants or their growing sites by using a ground or aerial duster, sprayer, or granule applicator.
Detailed Description
The invention aims to provide a weeding composition containing metazosulfuron and oxyfluorfen, and the active components of the weeding composition consist of a compound (A) and a compound (B); wherein the compound (A) is metazosulfuron or its salt; the compound (B) is oxyfluorfen.
Metazosulfuron (CAS number 868680-84-6) is a sulfonylurea herbicide developed by Nissan chemical Co., Ltd, and is a novel herbicide obtained by further optimizing the structure of the herbicide halosulfuron-methyl. Metazosulfuron has been described in WO 2005103044. The metazosulfuron is a good selective herbicide which has excellent weeding effect on weeds and does not show phytotoxicity on rice and wheat.
Oxyfluorfen (Oxyfluorfen). The chemical name of the compound is 2-chloro-4-trifluoromethylphenyl-3 '-ethoxy-4' -nitrophenyl ether, and the structural formula is as follows:
Figure DEST_PATH_IMAGE002
oxyfluorfen is a diphenyl ether herbicide developed by the company Rohm and Haas. Oxyfluorfen has been described in US 3798276.
The weight ratio of the compound (A) to the compound (B) is 1:1 to 1:100, preferably 1:1 to 1:90, more preferably 1:1 to 1:80, more preferably 1:1 to 1:70, more preferably 1:1 to 1:60, more preferably 1:1 to 1:55, more preferably 1:1 to 1:50, more preferably 1:1 to 1:40, more preferably 1:1 to 1: 30.
The weight range of the compound (A) and the compound (B) may also be 1:1 to 1:100, preferably 1:1 to 1:90, more preferably 1:1 to 1:80, more preferably 1:1 to 1:70, more preferably 1:1 to 1:60, more preferably 1:1 to 1:55, more preferably 1:1 to 1:50, more preferably 1:1 to 1:40, more preferably 1:1 to 1:30, more preferably 1:1 to 1:25, more preferably 1:1 to 1:20, more preferably 1:1 to 1:15, more preferably 1:1 to 1: 10.
The weight ranges of the compound (A) and the compound (B) may also be 1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:21,1:22,1:23,1:24,1:25,1:26,1:27,1:28,1:29,1:30,1:31,1:32,1:33,1:34,1:35,1:36,1:37,1:38,1:39,1:40,1:41,1:42,1:43,1:44,1:45,1:46,1:47,1:48,1:49,1:50,1:55,1: 65,1:70,1: 85,1: 95: 80,1:85,1: 6, 1:100.
The invention also provides a weeding composition containing metazosulfuron and oxyfluorfen, and the active components consist of the compound (A) and the compound (B), wherein the content of the compound (A) and the compound (B) accounts for 1% -90%, preferably 5% -80%, more preferably 5% -70%, more preferably 5% -60%, more preferably 5% -50% of the weeding composition; the compound (A) metazosulfuron or its salt; the compound (B) is selected from oxyfluorfen.
The invention also provides a weeding composition, wherein the active components consist of the compound (A) and the compound (B), and the content of the compound (A) and the compound (B) in the weeding composition can be 1%, 3%, 5%,7%,8%,9%,10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%.
The synergistic effect can result in a reduced application rate of the individual herbicides, a higher efficacy at the same application rate, control of previously untreated varieties, control of varieties tolerant or resistant to a single herbicide or to multiple herbicides, an extended application period and/or a reduction in the number of individual applications required; and for the user, a more economically and ecologically advantageous weed control system is obtained.
The herbicidal compositions containing metazosulfuron and oxyfluorfen of the present invention allow the activities of the compounds (a) and (B) to be synergistically enhanced in an unexpected manner beyond the activities achievable with the single active ingredients compound (a) and compound (B).
The herbicidal compositions containing metazosulfuron and oxyfluorfen of the present invention may also contain one or more other active compounds which are different from the compounds (a) and (B) and which also act as selective herbicides.
Preferably, the one or more other active compounds which are different from compound (a) and compound (B) and which are also useful as selective herbicides include acetochlor (acetochlor), activated ester (acibenzolar), benzothiadiazole (acibenzolar-S-methyl), acifluorfen (acifluorfen), aclonifen (aclonifen), alachlor (alachlor), butachlor (allechlor), diclofenacet (alloxidin), ametryn (ametryn), amicarbazone (amicarbazone), amidosulfuron), aminopyralid (amicarbazone), imazapyr (amicarbazone), amicarbazone (amicarbazone), ammonium sulfamate (ammonium sulfamate), pyriminol (aminocyclophos), pyrifos (amicarbazone), pyrazosulfuron (amicarbazone), pyribenzosulfuron), bensulfuron (fensulfuron), pyrazosulfuron (fensulfuron), fensulfuron (fentrazone), fentrazone (fentrazone), bensulfuron (fentrazone), bensulfuron (fentrazone), bensulfuron) and bensulfuron (fentrazone) for example, bensulfuron) can, bensulfuron, benfurbenfurbensulfuron, bensulfuron, benfurbensulfuron, bensulfuron, benfurbenfurbensulfuron, bensulfuron, benfurbenfurbenfurbenfurbensulfuron, bensulfuron, benfurbenfurbenfurbenfurbenfurbenfurbenfurbensulfuron, benfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbensulfuron, benfurbenfurbenfurbenfurbensulfuron, bensulfuron, benfurbenfurbensulfuron, bensulfuron, benfurbensulfuron, bensulfuron, benfurbenfurbensulfuron, benfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbensulfuron, bensulfuron, benfurbenfurbensulfuron, benfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbensulfuron, benfurbenfurbenfurbenfurbenfurbensulfuron, benfurbensulfuron, benfurbenfurbenfurbensulfuron, benfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbensulfuron, benfurbensulfuron, bensulfuron, benfurbensulfuron, benfurbenfurbenfurbenfurbenfurbenfurbenfurbenfurbensulfuron, bensulfuron, benfurben, Fomesafen (benzofluor), fluroxypyr (bicyclopyrone), bispyribac-sodium (bispyribac-sodium), butachlor (butachlor), butafenacil (butafenacil), butralin (butralin), cafenstrole (cafenstrole), diacyl-amine (carpetamide), carfentrazone (carfentrazone), chlorimuron (chlorimuron, chlorimuron-ethyl), chlormequat (chlorimuron), chlortoluron (chlorimuron), chlorsulfuron (chlorimuron), cinmethylin (cinmethylin), cinolone (cyclomethionate), clomazone (clomazone), clomazone (clorsulon), clomazone (clobetamethazone), pyributicacid (dicron), dicrotofen-ethyl (diclofen-ethyl), pyrithion (dicron), pyrithiobac (dicron (diclomeron), pyrimethanil (diclomeron (dicron), pyrimethanil (pyrimethanil), pyrimethanil (cyclomethiconuron (pyrim), pyrimethanil (pyrimethanil), pyrimethanil (pyrimethanil-methyl-propiram), pyrimethanil (pyrimethanil), pyrimethanil (pyrimethanil), pyrimethanil (pyrimethanil), pyrimethanil-pyrimethanil (pyrimethanil), pyrimethanil (pyrimethanil-benbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenbenben, diflufenil, diflufenzopyr, dimefluuron, dimeflufen (dimepiperate), dimethachlron, isovaleryl (dimethyn), diphenoxamine (diphenpyrad), ipratron (dippetron), diquat (diquat), diuron (diuron), ethametsulfuron (ethametsulfuron), ethametsulfuron-methyl, ethephon (ethephon), thifensulfuron (ethiuron), sulfosulfuron (ethidium), ethoxysulfuron (ethofenpuron), ethoxysulfuron (ethysuron), ethoxybenemin (ethofenprox), fenoxaprop-P-ethyl, flufenpyrazofen-ethyl), flufenpyrazofen (flufenpyraflufen-ethyl), flufenpyrazofen-ethyl (flufenpyraflufen), pyraflufen-ethyl (flufenpyraflufen-ethyl), flufenpyrazofen-ethyl (flufenpyraflufen-ethyl), pyraflufen-ethyl (flufenpyrazofen-ethyl), pyraflufen-ethyl (flufen-ethyl), pyrazofen-ethyl (flufen-ethyl (P-ethyl), flufen-ethyl (flufen-ethyl), pyrazofen (flufen-ethyl), pyrazofen-ethyl (fenoxafen-ethyl (fenoxaprop-ethyl), pyraflufen-ethyl (fenoxaprop-ethyl), pyraflufen-ethyl (flufen-ethyl), pyraflufen-ethyl (flufen-ethyl), pyraflufen-ethyl, flufen-ethyl), pyraflufen-ethyl (flufen-ethyl ), pyraflufen-ethyl (flufen-ethyl, flufen-ethyl (flufen-ethyl, flucarbazone (flucarbazone-sodium), flucarbazone (fluetosulfuron), flufenacet (flufenacet), flumetralin (fluetrralin), flumetsulam (fluethilin), flumetsulam (fluethisulam), flumetsulam (fludioxonil), fluoroglycofen (fluxofen), fludroxyfen-ethyl, fludroxyfen (fluxofenam), flumetsulam (fluxofenaron), flumetsulam (fluidofen), fluoroglycofen (fluxofenan), fluxofenacet (fluxofenam), flumetsulam (fluxofenacet), fludioxonil (fluxofenacetone), fluxofenidone (fluxofenacet), glyphosate (fluxofenacet), fluorofenacet (fluxofenacet), flumethione (flufenacet-sodium), sulfadiazine (ammonium-phosphate-sodium (phosphate-ammonium salt), sulfofenamate (ammonium-sodium-sulfate (ammonium-phosphate, ammonium-phosphate (ammonium-phosphate, ammonium-phosphate, ammonium-phosphate (ammonium-phosphate, ammonium-phosphate, halosulfuron-methyl, fluazifop (haloxyfop), fluazifop (haloxyfop-P), fluazifop (haloxyfop-ethyl), fluazifop (haloxyfop-P-ethyl), hexazinone (hexazinone), imazamethabenz (imazamethabenz-z), imazamethabenz (imazamox, imazamox-ammonium), imazamox (imazamox), imazapyr (isoxapyroxyfon), isoxapyroxapyroxaprid (isoxapyroxaprid), isoxapyroxaprid (isoxaprid, isoxapyroxaprid), imazapyr (isoxapride (isoxapyroxaprid), imazapyr (isoxapride), imazapyr (isoxapyroxapride (isoxapyroxapyroxapyroxaprid), imazapine (isoxapyroxapril, isoxapril (isoxapyroxapyroxapril), imazapine (isoxapyroxapril, isoxapyroxapyroxapril, isoxapril, isoxapyroxapyroxapyroxapyroxapril (isoxapril), imazapine (isoxapril, isoxapyroxapyroxapyroxapril, isoxapyroxapril (isoxapril, isoxapyroxapril, isoxapyroxapyroxapril), imazapine (isoxapyroxapril, isoxapril, isoxapyroxapril (isoxapril, isoxapyroxapyroxapril, isoxapril, isoxapyroxapril, isoxapril (isoxapril, isoxapyroxapyroxapyroxapril, isoxapril, isoxaflufen (isoxapyroxim), lactofen (lactofen), lenacil (lenacil), mefenacet (mefenacet), metosulide (meflulidide), mepiquat-chloride (mepiquat-chloride), mesosulfuron (mesosuluron, mesosulfuron-methyl), mesotrione (mesotrione), metabenzhiuron (methabenzthiazone), metamitron (metamitron), metazachlor (metazachlor), metoxazole (methazole), methionyl (methiconuron), benzoxyfon (methamphetaron), methiconuron (metosulron), metosulam (metosuluron), metosulam (metosulam), metosulam (metosuluron), metosuluron (metosultone), metosulsulfuron (metosuluron (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (metosultone), metosultone (, Oxaziclomefone (oxaziclomefone), paclobutrazol (paclobutrazol), paraquat (paraquat dichloride), pendimethalin (pendimethalin), pentoxazone (penoxazone), pethoxamid (petoxamid), picloram (picolinafen), pinoxaden (pinoxaden), pipophos (piptophos), pretilachlor (pretilachlor), probenazole (propazone), flumetsulam (profluor), profluralin (profluoralin), cycloxydim (profenox), prometryn (prometryn), propanil (propaferon), propaquinol (propaferon), propaferon (benfop-propafenone (propafen), propafen (propafen), propafenone (propaferon), propaferon (propafenone), propafen (propafen, propaferon (propafen (propaferon), propaferon (propafen), propafen (propafen), propaferon (propafen), propafen (propafenone), propafen (propafen ), benfop), propafen (propafen), benfop-propafen (benfop), benfop-bencarb), benfop), bencarb), benfop-bencarb), bencarb (bencarb), bencarb), bencarb (bencarb), bencarb), bencarb, ben, Pyribenzoxim (pyribenzoxim), pyributicarb (pyributicarb), pyribenzoxim (pyriftalid), pyriminobac-methyl (pyriminobac-methyl), pyriproxyfen (pyrimisulfan), pyrithiobac-methyl (pyrithiobac-sodium), pyroxasulfofone (pyroxsulam), pyroxsulam (pyroxsulam), quinclorac (quinethac), clorac (chloromethac), quizalofop (quinalofop), quizalofop-P (quinalofop-P), quizalofop-ethyl (quizalofop-P-ethyl), sulfosulfuron (rimsulfuron), saflufenacil (saflufenacil), sec-buteton (butubulon), sethoxydim (setron), thifensulfuron-methyl (fensulfuron), sulfosulfuron (sulfosulfuron), thifensulfuron (thiosulfuron), sulfosulfuron (sulforon), thifensulfuron-methyl), sulforon (sulforon), thifensulfuron (thiosulfuron), thifensulfuron (thioron (thiosulfuron), thiuron (thiosulfuron), thifensulfuron (thiosulfuron), thiuron (thiosulfuron (thioron), thiuron (thiosulfuron), thifensulfuron (thiosulfuron), thiuron (thiosulfuron), thifensulfuron (thiosulfuron), thifensulfuron (thiosulfuron (thion, thifensulfuron), thifensulfuron (thiosulfuron, thifensulfuron (thion), thifensulfuron (thiosulfuron), thifensulfuron (thiosulfuron (thion, thifensulfuron), thifensulfuron (thion, thifensulfuron), thifensulfuron (thion), thifensulfuron (thion, thifensulfuron), thifensulfuron (thion), thifensulfuron), thifensulfuron (thion), thifensulfuron (thion), thifensulfuron (thion, thifensulfuron), thifensulfuron), thifensulfuron), thifensulfuron (thifensulfuron ), thifensulfuron (thifensulfuron, thifensulfuron (thifensulfuron, thifensulfuron), thifensulfuron), thifensulfuron (thifensulfuron), thifensulfuron), thifensulfuron, thi, Triclopyr, diclopyr, trifloxysulfuron (trideoxysulfuron), trifloxysulfuron (trifloxysulfuron-sodium), trifluralin (trifluralin), triflusulfuron (triflusulfuron), triflusulfuron methyl ester (triflusulfuron-methyl), tritron (trimeturon), trinexapac-ethyl (trinexapac-ethyl), triflusulfuron (tritosulfuron), tsutodef, uniconazole (uniconazole), penoxsulam (enxosum), cyhalofop (cyhalofop), mesosulfuron (mesosulfuron).
Although the compounds (a) and (B) already exhibit good or even sufficient selectivity in a large number of crops, in principle phytotoxicity to the crop plants may occur in some crops, in particular also in combination with other less selective herbicides. Compositions comprising the herbicidal compositions according to the present invention and one or more safeners are particularly advantageous. The safeners are applied in a detoxifically effective amount, for example to economically important crops or to reduce the phytotoxic side effects of the herbicides used in fruit plantations (plantation crops).
The following are, for example, compounds suitable as safeners (including possible stereoisomers and agriculturally commonly used esters or salts): the herbicide safener is selected from 1, 8-naphthalic anhydride (1, 8-naphtalenedicarbonylhydrazide), Benoxacor (Benoxacor), fenclozole (fenclozole-ethyl), Furilazole (Furilazole), jiecan (2-dichloromethyl-2-methyl-1, 3-dioxolone), Cloquintocet (Cloquintocet-mexyl), Cloquintocet (cyclometrine), Cloquintocet (cyclotrinil), Oxabetrinil (Oxalim), fluxofenam (Fluxofenarm), fenpyr (Fenclorim), fluquine (Flurazole) or cumene (Acetamide), Isoxadifen (Ruxadifen), Mefenpyr (fenpyr-diethyl), clofenflurazote (Cloquinol-mexyl), dichlorpropenamine (dichlornphor), dichlorphenazine (dichlorphenazine), benazolate (benoxadinioxin (Mefenpyr), fenpyr-diethyl), fenpyr (dichlorfenate), dichlorfenate (dichlorfenate), dichlorfenapyr (dichlorfenapyr), dichlorfenapyr (bensulide), bensulide (bensulide), bensulide (bensulbensulide), bensulbensulide (bensulide), bensulide (bensulbensulbensulide (bensulbensulide), bensulbensulide (bensulide (bensulbensulbensulbensulide (bensulbensulide), bensulbensulbensulide), bensulbensulide (bensulbensulbensulide (bensulbensulbensulbensulbensulide), bensulide (bensulide), bensulbensulide (bensulide), bensulide (bensulbensulbensulide), bensulbensulbensulbensulide (bensulide), bensulide (bensulide), bensulbensulide (bensulbensulbensulide), bensulbensulbensulbensulbensulbensulbensulbensulbensulbensulbensulbensulbensulide (bensulbensulbensulide (bensulbensulbensulbensulbensulbensulbensulide (bensulide), bensulbensulide (bensulide (bensulbensulide), bensulide (bensulbensulbensulbensulide), bensulbensulbensulide (bensulbensulbensulbensulbensulide (bensulbensulbensulbensulbensulbensulbensulide (bensulide), bensulide (bensulide), bensulbensulide), bensulbensulbensulide (bensulbensulide (bensulide), ben, At least one of Isoxadifen-ethyl and N-phenyl-sulfonyl benzoic acid amide.
Some safeners are known to act as herbicides and, accordingly, to act to protect crop plants in addition to having a herbicidal effect on harmful plants.
The weight ratio of the herbicidal compositions according to the invention containing metazosulfuron and oxyfluorfen to safener depends in general on the application rate of the herbicide and the effect of the safener and can be varied within wide limits, for example within the range from 90000: 1 to 1: 5000, preferably within the range from 7000: 1 to 1: 1600, in particular within the range from 3000: 1 to 1: 500, in particular within the range from 1:100 to 20: 1. Safeners can be formulated with compound a and compound B as finished formulations or supplied and used as tank mixes with the herbicidal compositions.
The herbicidal compositions containing metazosulfuron and oxyfluorfen according to the invention may also comprise various active compounds of other components, for example selected from fungicides, insecticides, acaricides, nematicides, bird repellents, soil structure improvers, and plant growth regulators.
The weeding composition containing metazosulfuron and oxyfluorfen can further contain liquid fertilizer or solid fertilizer.
The weeding composition containing metazosulfuron and oxyfluorfen can be used for controlling undesirable plants at the following positions:
food crops, for example, include:
cereals (small grains) such as wheat (Triticum aestivum) and wheat crops such as durum (t.durum), einkorn (t.monococcum), emmer (t.dicoccun) and spelt (t.spelta), rye (Secale), triticale (triticale), barley (Hordeum vulgare);
corn (Zea mays);
sorghum (e.g., sweet Sorghum (Sorghum bicolour));
rice (Oryza) such as rice (Oryza sativa) and african rice (Oryzaglaberrima);
sugar cane;
legumes (legumae), including for example soy (Glycine max.), peanuts (Arachis hypogaea) and legume crops such as peas (including peas (Pisum sativum), pigeon peas and cowpea), beans (including broad beans (Vicia faba), Vigna nigra (Vigna nigra) and Vigna nigra (Phaseolus)), and lentils (lentils var lentil.);
cruciferae families, including, for example, canola (Brassica napus), rape (Brassica napus), cabbage (b.oleracea var.), mustard such as mustard (b.juncea), chinese cabbage (b.campestros), chinese tarda (b.narinosa), black mustard (b.nigra), and mediterranean turnip (b.tournefortii); and turnip (Brassica rapa var.);
other broad leaf crops, including, for example, sunflower, cotton, flax, linseed, sugar beet, potato, and tomato;
TNV crops (TNV: trees, nuts and vines), including, for example, grapes, citrus, pome fruits, such as apples and pears, coffee, pistachios and oil palms, stone fruits, such as peaches, almonds, walnuts, olives, cherries, plums and apricots;
turf, pasture and pasture;
onion and garlic;
bulb ornamentals such as tulip and narcissus;
conifers and deciduous trees such as Pinus (Pinus), fir, oak, maple, dogwood, hawthorn, crabapple and Rhamnus (Rhamnus);
garden ornamentals such as petunia, marigold, roses and snapdragon;
road surroundings such as roads, railways, lawns, utility lines;
and (4) industrial vegetation.
The herbicidal composition containing metazosulfuron and oxyfluorfen according to the invention is preferably used for controlling undesirable vegetation in the following crops of useful plants: direct-seeded, water-seeded transplanted rice, wheat, rye, barley, oats, triticale, sorghum, corn, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, pastures, grasslands, fallowland, turf, tree or vine orchards, aquatics, plantation crops, vegetables, industrial vegetation management and rights-of-way. The herbicidal compositions are tolerant by the useful crop.
The invention provides an application of a weeding composition containing metazosulfuron and oxyfluorfen in preventing and controlling undesired plant germination or growth.
The invention provides application of a weeding composition containing metazosulfuron and oxyfluorfen in preventing and removing undesirable plant germination or growth of broadleaf weeds, sedge weeds and grass weeds.
The undesirable plants in rice are selected from: brachypodium flaccida (Broadleaf signalgrass), Digitaria sanguinalis (L.) Scop), Echinochloa crusgalli (L.) P.Beauv.), Echinochloa crusgalli (Echinochloa odorata (L.) Orychiaceae), Echinochloa cruzi (Isochamus rugosum Salisb.), Euphorbia japonica (L.) Nees, Euphorbia crispa (Leptochloa fasciata (L.) Gray.), Euphorbia crispa (Lam.) Gray), Cyperus diformis (Cyperus difformis L.), Cyperus rudis (Cyperus judae L.) Miq.S.Merr, Cyperus irhiza L.J., Cyperus L.var.L., Cyperus L.sp.var.sp.S.japonica (Amphyceae), Amano. crispus L.benthamella (Amano. sp., Orpicea), Orthophyceae L.japonica (Amethrum), Echinochloa. crispa (L., Orchis (L., Oreophyceae), Echinochloa (L., Echinaceae), Echinacea L., Echinacea (L., Echinacea (L.), (quinoa (pigweeds) and amaranthus (amaranths), AMASS), Amaranthus rubra (Ammannia coccinea Rottb.), Ecliptae herba (Eclipta alba (L.) Hassk.) (the gut of American hair day, ECLAL), Isopistia rosea (SW.)/Vall.), petunia (Ipomoea hederacea (L.)) Jacq.), Potentilla fragilis (Monochoria korsakii Regel & Maack) (Monochoria, MOKA), Oakus communis (Monochoria vagiana), Phyllostachys nuda (Murdannia nudiflora (L.) and Brennen), Satureja nodosa (Rotarahia japonica, Satarahira) and Satureja japonica (Saturel. ) (species of Saururi).
Undesirable plants of oilseed rape, canola, wheat, rye, barley, oats, triticale, sorghum, maize, sugar cane, sunflower, sugar beet, soybean, cotton, pineapple, vegetables are selected from Alopecurus myosuroides Huds (blackgrass, ALOMY), Avena sativa L (Avena fatua L), Bromus (Bromus monitoring L.) (downtown broomrape), BROTE, Lolium multiflorum (Lolium florum.) (Italian ryegrass), Lolmu, Roughhaired spartina (littlered spartina), PHAMI, Poa annuum L.) (Setaria viridis (Schtarian pusilura) and Setaria viridis (yellow Amaranthus), Amaranthus viridis (Bentha), Sethin Amaranthus viridis (Bentha. sativus), AMARE), Brassica species (Brassica species) (BRSSS), Chenopodium (Chenopodium album L.) (common grifola (commune lambsquarters), CHEAL), cleaver (Galium aparine L.), Kochia scoparia (L.)), Philippinensis Laminaria (Lamium purpurporicum L.) (purple nettle, LAMPU), Matricaria chamomilla (Matricaria recutita L.), Matricaria chamomilla (Matricaria matricarinicaides (Less.) Porter), Combretum (Papaver rhoea L.), wild buckwheat (wiburckwy, Salla gigas L.) (Sinapis alburera L.), Sinaria spica (Sinapis alba L.), wild buckwheat (wild buckwheat L.)) (Vibrio japonica L.), Sinaria japonica (Sinaria), Sinaria japonica L.), viola wildlife (Viola arvensis Murr.), or Viola tricolor (Viola tricolor L.).
Undesirable plants in pastures and pastures are selected from ragweed (Ambrosia artemisiifolia L.), Cassia obtusifolia (Cassia obtusifolia), Centaurella maculosa au. from non Lam.), Convolvulus arvensis L.) (field bound, CONAR), Lactuca sativa (Lactuca seriola L./Torn.), Plantago major L.) (Rumex obtusifolia L.), Oryza sativa (Sida spinosa L.), Arabidopsis thaliana (Sinapios arvensis L.) (Perennisoth, Sonchus arvensis L.) (Perennisothriosis, Urtica dioica), Urtica indica (Sinaria sinica L.) (Taraxacum. from Taraxacum officinale L.), or Taraxacum officinale (Taraxacum officinale L.) (Taraxacum officinalis, Urtica).
The herbicidal compositions according to the invention preferably exhibit a synergistic effect on barnyard grass (Echinochloa crus _ galli (L.) p. beauvs.), green bristlegrass (Setaria viridis (L.) beauvs.), Digitaria sanguinalis (L.) Scop, stephania japonica (Leptochloa chinensis), wild oat (Avena fatua L.), Chenopodium album (Chenopodium album L.), chickweed (Stellaria media (L.) Cyr.), iris lactuca (schoenopectus juncoides Roxb.), Cyperus rotundus (cyus diflora L.), monochorizontalis (monochorina vaginalis), oat (senecia sativa), and black cabbage (wilfordia auriculata) alone, with a synergistic effect being lower than that of the individual compounds applied to barnyard grass (Echinochloa), black cabbage (flagellaria, black cabbage).
"undesirable plants" are understood to mean all plants which grow in places where their growth is not desired. These may be, for example, harmful plants (for example monocotyledonous or dicotyledonous weeds, grasses, cyperaceae or unwanted crop plants), including, for example, those which are resistant to certain herbicidally active compounds (for example glyphosate, glufosinate, atrazine, imidazolinone herbicides and sulfonylureas).
The present invention provides a method for controlling undesired vegetation, comprising: (i) applying a herbicidally effective amount of the herbicidal composition of the present invention to the undesired plants or to the locus thereof before germination (pre-emergence), (ii) after germination (post-emergence), or (iii) at both (i) and (ii).
A method for controlling undesired plants, which comprises contacting the undesired plants or a place where they grow with a herbicidally effective amount of the herbicidal composition. A herbicidally effective amount refers to the amount of the herbicidally active ingredient that is applied to control undesirable vegetation.
A method for controlling undesired plants, by applying the herbicidal composition of the present invention to undesired plants or a growing field thereof to thereby control the germination or growth of the undesired plants.
A method for controlling undesired plants, applying the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention to soil or water to control the germination or growth of undesired plants.
A method for controlling undesired plants, wherein the compound (A) and the compound (B) in the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention are applied to undesired plants or their growing field together or separately so as to control the germination or growth of the undesired plants.
A method for controlling undesired plants, wherein the compound (A) and the compound (B) in the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention are applied to soil or water together or separately to control the germination or growth of undesired plants.
When the weeding composition containing metazosulfuron and oxyfluorfen is used as a herbicide for paddy fields, the weeding composition can be used for soil treatment and stem and leaf treatment under the condition of water accumulation.
When the weeding composition containing metazosulfuron and oxyfluorfen is used as a herbicide for dry land, the weeding composition can be used for soil treatment, soil mixing treatment and stem and leaf treatment.
The weeding composition containing metazosulfuron and oxyfluorfen can be used as a herbicide for paddy fields and can also be used as a herbicide for dry fields.
Weeds in paddy fields include, for example,
weeds of the family of the ophthalmocaceae (Potamogenoceae), such as Eisenia veitchii (Potamonton sativtus);
alismataceae (Alismataceae) weeds such as Alisma orientale (Alisma canaticulatum), Arrowia short (Sagittaria pygmaea) and Sagittaria sagittifolia (Sagittaria trifolia);
gramineous (Gramineae) weeds such as moleplant seed (Leptochloa chinensis), barnyard grass (Echinochloa crus-galli) and barnyard grass (Echinochloa oryzicola), etc.;
cyperaceae (Cyperaceae) weeds such as equisetum vulgare (Eleocharis Kuroguwai), Iris florida (Scirpus juncoides), Sanjiang grass (Scirpus niponicus), Cyperus rotundus (Cyperus serotinus), Cyperus heterotropoides (Cyperus difformis), and the like;
lemnaceae (Lemnaceae) weeds such as Spirodela polyrhiza and Lemna paucicostata (Lemna paucicostata);
commelinaceae (Commelinaceae) weeds such as verruca vulgaris (Murdannia keisak) and the like;
weeds of the Pontederiaceae family (Pontederiaceae), such as Pontederiaceae (Monochoria korsakovii) and Monochoria vaginalis (Monochoria vagiana), etc.;
weeds of the family Hamamelidaceae (Eltinaceae), such as, for example, Hamamelidium (Elatine triandra);
lythraceae (Lythraceae) weeds such as Polyfloral Water (Ammannia multiflora) and Arthrodial (Rotala indica), etc.;
salicaceae (Oenotheraceae) weeds such as pseudosalix chinensis (Ludwigia epilobioides), etc.;
scrophulariaceae (Scrophulariaceae) weeds such as eyes (Dopatrium junceuum), strange lettuce (Linderniaphycidaria) and American motherwort (Lindernia dubia);
compositae (Compositae) weeds such as pennisetum alopecuroides (Bidens frontosa) and Bidens tripartita (Bidenscriptipartia).
The present invention also provides a method for controlling undesired vegetation, which comprises: (i) applying a herbicidally effective amount of the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention to the undesired plants or to the locus thereof before germination (pre-emergence), (ii) after germination (post-emergence), or (iii) at (i) and (ii). Preferably, the application of the germinated undesired vegetation (e.g. broadleaf weeds, grasses, cyperaceae or undesired crop plants) is also carried out before the undesired vegetation germinates, irrespective of the growth period of the sown/planted crop.
The weeding composition containing metazosulfuron and oxyfluorfen has synergistic effect by containing the compound (A) and the compound (B) with herbicidally effective amounts. A synergistic effect is observed when compound (a) and compound (B) are administered together or nearly simultaneously; a synergistic effect may also be observed when compound (a) and compound (B) are administered separately at different times; it is also possible to apply compound (a) and compound (B) sequentially, for example, either pre-emergence and post-emergence, or early post-emergence and then mid-or late post-emergence. It is preferred here to administer compound (a) and compound (B) jointly or virtually simultaneously, and particular preference is given to coadministration.
If the herbicidal composition of the present invention is applied to the soil surface before germination, the weed seedlings are completely prevented from germinating, or the weeds grow to the cotyledon stage, but then they stop growing, and finally die completely after two to four weeks.
If the herbicidal composition is applied to the green parts of the plants after germination, the growth likewise stops sharply within a relatively short time after the treatment and the weed plants remain in the growth phase at the point in time of application or they die completely after a certain time, in such a way that the competition caused by the weeds which are harmful to the crop plants is eliminated early and continuously. For rice, the herbicidal composition may also be applied in water, which is then absorbed through the soil, shoots and roots.
When compound (a) and compound (B) are co-administered, there is a synergistic effect. Here, the activity of the herbicidal composition is higher than the expected sum of the activities of the individual herbicides applied. The synergistic effect enables the application rate to be reduced, a broader spectrum of broadleaf weeds, grassy weeds and sedge plants to be controlled, the herbicidal action takes effect more quickly, lasts longer, better control of harmful plants is achieved by only one or a few applications, and the application period can be widened. The dosage used in the herbicidal composition and the effective dosages of compound (a) and compound (B) can be adjusted to lower levels so as to minimize the effect on the soil. This allows the herbicidal compositions of the present invention to be applied not only to sensitive crops but also almost avoid groundwater contamination. The herbicidal compositions of the present invention allow for a significant reduction in the required application rate of the active ingredient.
The herbicidal compositions containing metazosulfuron and oxyfluorfen of the present invention may be applied in a conventional manner by using techniques well known to those skilled in the art. Methods of application include, but are not limited to, application to undesired plants or their locus of growth, for example to the area adjacent to the plants, as well as pre-emergence, post-emergence, foliar (strewing, directional, ribbon, spot, mechanical, flip-top or replanting), and application in water (strewing, spot, mechanical, water-jet, granular strewing, granular spot, shake flask or spray bottle) by hand, backpack, mechanical, tractor, or aerial (airplane, helicopter, drone) application methods.
A method for controlling undesired plants, which comprises adding the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention to irrigation water and applying it to the undesired plants or their growing sites by using a ground or aerial duster, sprayer, or granule applicator.
The type of application depends in a well-known manner on the intended purpose; in any case, the technique should ensure the best possible distribution of the active ingredients in the herbicidal compositions containing metazosulfuron and oxyfluorfen according to the invention.
The present invention also provides a method for controlling undesired vegetation, which comprises applying the herbicidal composition comprising metazosulfuron-methyl and oxyfluorfen of the present invention in the presence of plants of useful crops, seeds of useful crops or other propagating parts of useful crops.
Plants, crops, as referred to in the present invention include, but are not limited to, germinated seeds, emerging seedlings, plants emerging from vegetative propagules, immature plants and established plants.
If the active ingredient is not well tolerated by certain crops, the herbicidal compositions can be directed to spray with the aid of a spray device so that they contact the sensitive crop as little as possible when they reach the foliage or bare soil of the undesirable plants growing below.
The method of the invention is most preferably used for controlling weeds in the area where the crop is growing or will be used for growing the crop, by unwanted plants or their locus. When applied to a crop growing area, the application rate should be sufficient to control weed growth without causing serious permanent damage to the crop.
The application amount of the herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention varies depending on the application place, application time, application method, target weeds, useful crops, and the like.
The application rate of compound (a) can vary within wide limits, for example from 0.1g to 1000g of a.i./ha (hereinafter, a.i./ha means "active substance/hectare" based on 100% pure active compound), preferably from 0.1 to 100g of a.i./ha, more preferably from 1 to 50g of a.i./ha, more preferably from 1 to 40g of a.i./ha. When the compounds (a) are used before sowing, before planting or pre-and post-emergence, they have a relatively broad spectrum of harmful plants to be controlled, for example annual and perennial monocotyledonous or dicotyledonous broadleaf weeds, grasses and cyperaceae, and also undesirable crop plants.
The application rate of compound (B) can vary within wide limits, for example from 10g to 1000g a.i./ha, preferably from 10 to 500 g a.i./ha; it has better control effect on annual or perennial gramineous weeds.
The invention also provides a weeding composition containing the metazosulfuron and the oxyfluorfen, and the active components of the weeding composition comprise a compound (A) and a compound (B), and a filler and/or a surfactant. In the weeding composition containing metazosulfuron and oxyfluorfen, the content of the compound (A) and the compound (B) accounts for 1% -90%, preferably 5% -80%, more preferably 5% -70%, more preferably 5% -60%, and more preferably 5% -50% of the weeding composition.
The herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention can be converted into conventional formulations such as wettable powder, water-soluble granules, water-soluble liquid, emulsifiable concentrate, suspending agent, microcapsules, microemulsion, emulsion in water, suspoemulsion, microcapsule suspension-suspending agent, water-dispersible granules, ultra-low volume liquid, tablets, low volume dispersible granules, pills or dry suspension.
According to the present invention, the term "bulking agent" refers to natural or synthetic organic or inorganic compounds that can be combined or associated with an active ingredient to make it easier to apply to a subject (e.g., a plant, crop or grass). Thus, the filler is preferably inert, at least should be agriculturally acceptable. The filler may be solid or liquid.
Suitable solid carriers are: for example, vegetable powders (for example, particles of soybean powder, starch, cereal powder, wood powder, bark powder, saw dust, walnut shell powder, bran, cellulose powder, coconut shell, corn cob and tobacco stalk, and residues after extraction of plant essence), clays (for example, kaolin, bentonite, acid china clay, etc.), and talc powders. Silica (for example, diatomaceous earth, silica sand, mica, hydrous silicic acid, calcium silicate), activated carbon, natural minerals (for example, pumice, attapulgite, zeolite, etc.), calcined diatomaceous earth, sand, plastic media (for example, polyethylene, polypropylene, polyvinylidene chloride, etc.), inorganic mineral powders such as potassium chloride, calcium carbonate, calcium phosphate, etc., chemical fertilizers such as ammonium sulfate, ammonium phosphate, urea, ammonium chloride, etc., and soil fertilizers, and these may be used alone or in combination of 2 or more.
Suitable liquid carriers may be selected from, for example, water, alcohols (e.g., methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.), ketones (e.g., acetone, methyl ethyl ketone, diisobutyl ketone, cyclohexanone, etc.), ethers (e.g., diethyl ether, dioxane, methyl cellulose, tetrahydrofuran, etc.), aliphatic hydrocarbons (e.g., kerosene, mineral oil, etc.), aromatic hydrocarbons (e.g., benzene, toluene, xylene, mineral spirits, alkylnaphthalenes, chlorinated aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, chlorobenzene, etc.), halogenated hydrocarbons, amides, sulfones, dimethyl sulfoxide, mineral and vegetable oils, animal oils, etc.
Suitable surfactants are emulsifiers, dispersants or wetting agents of an ionic or nonionic nature, or mixtures of these surfactants. Suitable examples of such surfactants include fatty alcohol-polyoxyethylene ethers, polyoxyethylene alkylaryl ethers, polyoxyethylene higher fatty acid esters, phosphoric acid esters of polyoxyethylene alcohols or phenols, fatty acid esters of polyhydric alcohols, sodium alkylaryl sulfonates, naphthalenesulfonic acid polymers, lignosulfonates, high-molecular comb-shaped dendritic copolymers, butylnaphthalenesulfonates, alkylaryl sulfonates, sodium alkylsulfosuccinates, fats and oils, polyacrylic acid salts such as condensates of fatty alcohols with ethylene oxide and alkyltaurates, and protein hydrolysates. Suitable oligosaccharides or polymers are based, for example, on ethylene monomers, acrylic acid, polyoxyethylene or polyoxypropylene alone or in combination with, for example, (poly) alcohols or (poly) amines. When one of the active compounds and/or one of the inert carriers is insoluble in water and when applied in water, a surfactant must be present.
If appropriate, the herbicidal compositions according to the invention containing metazosulfuron and oxyfluorfen may also be present in other additional components, for example protective colloids, binders, adhesives, thickeners, thixotropic agents, penetrants, stabilizers, sequestering agents, complex formers. In general, the active ingredient may be combined with any solid or liquid additive conventionally used for formulation purposes.
The weeding composition containing metazosulfuron and oxyfluorfen can be prepared by mixing the active components with at least one of the following substances in a known manner: liquid or solid carriers, emulsifiers, dispersants, wetting agents and/or protective colloids, binders, adhesives, thickeners, thixotropic agents, penetrating agents, stabilizers, sequestering agents, complex-forming agents, water and further processing aids.
The herbicidal composition containing metazosulfuron and oxyfluorfen of the present invention has a more easily usable form because the amounts of the components are already in the optimum ratio. In addition, the auxiliaries in the formulations can be adjusted to one another for optimization.
A weeding composition containing metazosulfuron and oxyfluorfen and application advantages thereof are as follows:
the herbicidal composition containing metazosulfuron and oxyfluorfen and the application thereof of the invention obtain the 'synergistic' effect on weed control required by technicians in a particularly advantageous way, even including certain weed species which are difficult to control. Moreover, application of the compositions according to the invention makes it possible to significantly reduce the application rates of the individual components of the combination and to reduce the phytotoxicity to the crop plants.
A herbicidal composition containing metazosulfuron and oxyfluorfen and its use have been shown to be more effective when the herbicidal active ingredients are applied in combination than when applied alone. "synergistic" action means that two or more factors interact such that the effect when combined is greater than would be expected based on the response of each factor when applied separately.
Detailed Description
The invention will be further illustrated with reference to the following examples:
preparation example
In the formulation examples described below, the percentages are by weight, unless otherwise indicated.
Example 13% Oxazisulfuron +30% Oxyfluorfen Water dispersible granules
Weighing 3% of metazosulfuron-ethyl, 30% of oxyfluorfen, 10% of dodecyl trimethyl ammonium salt, 4% of alkylphenol polyoxyethylene ether phosphate, 4% of sodium chloride, 4% of Arabic gum and the balance of attapulgite to 100%. The raw materials are uniformly mixed, and are crushed and granulated to prepare the water dispersible granule.
Example 25% Oxazisulfuron +25% Oxyfluorfen Water dispersible granules
Weighing 5% of metazosulfuron-ethyl, 25% of oxyfluorfen, 5% of dodecyl trimethyl ammonium salt, 6% of oleoyl methyl sodium taurate, 3% of ammonium sulfate, 5% of Arabic gum and the balance of kaolin to 100%. The raw materials are uniformly mixed, and are crushed and granulated to prepare the water dispersible granule.
Example 310% Oxazisulfuron +2% Oxyfluorfen suspension
Weighing 10% of metazosulfuron-ethyl, 2% of oxyfluorfen, 10% of sodium salt of naphthalene sulfonic acid formaldehyde condensate, 10% of polyoxyethylene fatty acid ester, 2% of sodium alginate, 5% of glycerol, 2.5% of silicone and water to make up to 100%. The components are added into water and mixed, and a high-dispersion and stable suspension system is formed through high-speed shearing dispersion and sand grinding by a sand mill, so that the suspending agent is prepared.
Example 45% Oxazisulfuron +20% Oxyfluorfen suspension
Weighing 5% of metazosulfuron-ethyl, 20% of oxyfluorfen, 6% of p-methoxy fatty acid amido sodium benzenesulfonate, 5% of high-grade fatty glyceride, 3% of sodium alginate, 3% of glycerol, 1% of silicone and water to complement to 100%. The components are added into water and mixed, and a high-dispersion and stable suspension system is formed through high-speed shearing dispersion and sand grinding by a sand mill, so that the suspending agent is prepared.
Example 52% Oxazisulfuron +40% Ethoxyfen oil suspension
Weighing 2% of metazosulfuron-ethyl, 40% of oxyfluorfen, 11.5% of polyoxyethylene alkyl aryl ether, 4.5% of polyoxyethylene sodium lauryl ether carboxylate, 4% of polyvinyl alcohol and castor oil, and making up to 100%. The raw materials are mixed, and a high-dispersion and stable suspension system is formed after high-speed shearing dispersion and sanding by a sand mill, so that the oil suspending agent is prepared.
Example 62.4% Oxazifop-butyl +24% Oxyfluorfen oil suspension
Weighing 2.4% of metazosulfuron, 24% of oxyfluorfen, 6% of polyoxyethylene lanolin alcohol, 6% of castor oil polyoxyethylene ether, 3% of magnesium aluminum silicate and palm oil, and complementing the total amount to 100%. The raw materials are mixed, and a high-dispersion and stable suspension system is formed after high-speed shearing dispersion and sanding by a sand mill, so that the oil suspending agent is prepared.
Example 70.2% Oxazisulfuron-methyl +10% Ethoxyfen aqueous emulsion
Weighing 0.2% of metazosulfuron, 10% of oxyfluorfen, 10% of methyl oleate, 5% of ethoxylated castor oil, 3% of calcium dodecylbenzenesulfonate and water to make up to 100%. Dissolving oxyfluorfen in methyl oleate, and adding ethoxylated castor oil to obtain an oil phase; uniformly mixing metazosulfuron, calcium dodecylbenzene sulfonate and water to obtain a water phase; adding the oil phase into the water phase under stirring to obtain the 0.2 percent metazosulfuron and 10 percent oxyfluorfen aqueous emulsion.
Example 80.5% Susposulfuron +20% Oxyfluorfen suspension emulsion
Weighing 0.5 percent of metazosulfuron, 20 percent of oxyfluorfen and SolvessoTM10010%, dodecyl trimethyl ammonium salt 5%, naphthalene sulfonic acid formaldehyde condensate sodium salt 4%, ethoxylated castor oil 5%, xanthan gum 5%, propylene glycol 4%, n-octanol 3%, and water to make up to 100%. Grinding and/or shearing the metazosulfuron, the dodecyl trimethyl ammonium salt and water at a high speed to obtain the metazosulfuron suspending agent; mixing oxyfluorfen and SolvessoTM 100. Mixing and stirring the ethoxylated castor oil uniformly to obtain oxyfluorfen emulsifiable solution; the obtained oxyfluorfen emulsifiable concentrate is added into the metazosulfuron suspending agent to obtain 0.5% metazosulfuron and 20% oxyfluorfen suspending emulsion.
Example 90.4% Oxazifop-sulfuron +2% Oxyfluorfen granules
Weighing 0.4% of metazosulfuron, 2% of oxyfluorfen, 4% of dextrin and bentonite, and complementing the components to 100%. The raw materials are mixed, extruded and granulated to prepare the granules.
Example 101% Oxazisulfuron +20% Oxyfluorfen emulsifiable concentrate
Weighing 1% of metazosulfuron-ethyl, 20% of oxyfluorfen, 5% of ethoxylated castor oil, 3% of calcium dodecylbenzenesulfonate and 3% of SOLVESSOTM200 to 100%. The components are prepared according to the proportion and are evenly stirred to obtain a uniform phase, and 1 percent of metazosulfuron-ethyl and 20 percent of oxyfluorfen emulsifiable concentrate is obtained
Example 115% Oxazisulfuron +25% Oxyfluorfen wettable powder
Weighing 5% of metazosulfuron, 25% of oxyfluorfen, 5% of nonylphenol polyoxyethylene ether, 5% of calcium dodecylbenzenesulfonate and kaolin to complement to 100%. The wettable powder is prepared by mixing, grinding and airflow crushing the raw materials.
Example 122% Oxazisulfuron +20% Oxyfluorfen wettable powder
Weighing 2% of metazosulfuron-methyl, 20% of oxyfluorfen, 5% of polyoxyethylene glyceryl monofatty acid ester, 5% of triphenylethylphenol polyoxyethylene ether and diatomite to make up to 100%. The wettable powder is prepared by mixing, grinding and airflow crushing the raw materials.
Example 1325% Oxazisulfuron +25% Oxyfluorfen Dry suspension
Weighing 25% of metazosulfuron, 25% of oxyfluorfen, 5% of alkyl dimethyl benzyl ammonium, 5% of trisiloxane polyoxyethylene ether, 4% of polyvinyl alcohol, 3% of propylene glycol and 5% of silicone; kaolin to make up to 100%; mixing the active components and various assistants with water, forming a high-dispersion and stable suspension system after high-speed shearing dispersion and sanding by a sand mill to prepare the suspending agent, and drying the obtained suspension by a fluidized bed to obtain the dry suspending agent.
Example 145% metazosulfuron +50% oxyfluorfen +45% mefenpyr-diethyl
Weighing 5% of metazosulfuron-methyl, 50% of oxyfluorfen and 45% of fenchlorazole, and uniformly mixing.
Example 1540% azilsulfuron-methyl +60% oxyfluorfen
Weighing and uniformly mixing 40% of metazosulfuron and 60% of oxyfluorfen.
Example 1630% Oxazisulfuron +60% Oxyfluorfen +10% mefenpyr-diethyl
Weighing 30% of metazosulfuron-methyl, 60% of oxyfluorfen and 10% of mefenpyr-diethyl, and uniformly mixing.
The proportion in the above examples is weight percent.
(II) herbicidal Activity test
The herbicidal activity of the herbicidal composition of the present invention passes the fourth part of the herbicide of "indoor bioassay test criteria for pesticides NY/T1155.4-2006: activity measurement test Stem and leaf spray method "measurement:
the plant varieties tested were as follows:
common wheat (Triticum aestivum (spring));
rice (Oryza sativa);
barnyard grass (Echinochloa crus _ galli (L.). P. Beauv.);
black grass (Buchnera cruciata Hamilt.);
strange vegetables (Lindernia procumbens (Krock.) Philcox);
herba Aristolochiae (Rotala indica (Willd.) Koehne.).
Test agents: preparing a reagent according to a certain weight percentage: 1. metazosulfuron; 2. oxyfluorfen; 3. metazosulfuron + oxyfluorfen; then, each of the reagents was diluted with water to obtain a diluted drug solution.
The test method comprises the following steps: the method comprises the steps of filling a nutrition pot with the height of 10cm and the diameter of 8cm with a certain amount of soil, sowing 15-20 seeds of a plant variety to be tested into the nutrition pot, and covering the seeds with about 0.5cm of soil. In 4-6 leaf stage of weed, spraying 2ml of the pesticide solution in each pot, repeating the treatment for 4 times, and setting the treatment without pesticide as blank control. Transferring the plant leaves into a greenhouse for conventional culture after the liquid medicine on the surfaces of the plant leaves is naturally air-dried, and watering regularly. The fresh weight inhibition rate of each treatment was investigated 21 days after the treatment:
Figure DEST_PATH_IMAGE004
the combined effect of the compositions was then calculated by the Colby formula in "indoor bioassay test criteria for pesticides NY-T1155.7-2006 criteria herbicide part 7 compounded combined effect assay":
Figure DEST_PATH_IMAGE006
x is the control effect when compound a is applied at an application rate of m, expressed as a percentage of the untreated control group;
y is the control effect when compound B is applied at an application rate of n, expressed as a percentage of the untreated control group;
E0is the theoretical control effect when compound a and compound B are applied at application rates of m and n, expressed as a percentage of the untreated control group.
If the actual weed control rate (E) observed in the bioassay exceeds the theoretical control effect calculated using the Colby's method (E)0) It means that the efficacy of the herbicidal composition is greater than the sum of the efficacies of the ingredients, which means that the composition has a synergistic effect.
Test one: control of barnyard grass (Echinochloa crus _ galli (L.) P. Beauv.)
The weeding composition (metazosulfuron + oxyfluorfen) of the invention has the control effect on barnyard grass (Echinochloa crus _ galli (L.) P. Beauv.):
TABLE 1
Figure DEST_PATH_IMAGE008
The test results in table 1 show: the metazosulfuron and oxyfluorfen have obvious synergistic effect on the control effect of barnyard grass (Echinochloa crus _ galli (L.) P. Beauv.) within the range of 1:1-1: 100.
And (2) test II: control effect on black grass (Buchnera cruciata Hamilt.)
The weeding composition (metazosulfuron and oxyfluorfen) has the control effect on black grass (Buchnera cruciata Hamilt.):
TABLE 2
Figure DEST_PATH_IMAGE010
The test results in table 2 show: the metazosulfuron and oxyfluorfen in the range of 1:1-1:100 show obvious synergistic effect on the control effect of the black grass (Buchnera cruciata Hamilt.).
And (3) test III: prevention and treatment effect on strange vegetables (Lindernia procumbens (Krock.) Philcox)
The weeding composition (metazosulfuron and oxyfluorfen) of the invention has the control effect on strange lettuce (Lindernia procumbens (Krock.) Philcox):
TABLE 3
Figure DEST_PATH_IMAGE012
The test results in table 3 show that: the metazosulfuron and oxyfluorfen have obvious synergistic effect on the control effect of strange lettuce (Philcox) within the range of 1:1-1: 100.
And (4) testing: control of Arthrospira japonica (Rotala indica (Willd.) Koehne.)
The weeding composition (metazosulfuron and oxyfluorfen) of the invention has the control effect on herba jielensis (Rotala indica (Willd.) Koehne.):
TABLE 4
Figure DEST_PATH_IMAGE014
The test results in table 4 show: the prophylactis pyrazosulfuron and oxyfluorfen have obvious synergistic effect on the control effect of the herba jieri (Rotala indica (Willd.) Koehne.) in the range of 1:1-1: 100.
In addition, the combination of metazosulfuron and oxyfluorfen was tolerated by wheat and rice without unacceptable toxicity by safety observations of Triticum aestivum (spring) and rice (Oryza sativa).

Claims (21)

1. A weeding composition containing metazosulfuron and oxyfluorfen is characterized in that the active components consist of a compound (A) and a compound (B); wherein the compound (A) is metazosulfuron or its salt; the compound (B) is oxyfluorfen, and is characterized in that: the weight ratio of the compound (A) to the compound (B) is 1:15-1: 60.
2. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein: the weight ratio of the compound (A) to the compound (B) is 1:15-1: 50.
3. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein: the weight ratio of the compound (A) to the compound (B) is 1:15-1: 45.
4. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein: the weight ratio of the compound (A) to the compound (B) is 1:20-1: 45.
5. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein the contents of the compound (A) and the compound (B) account for 5 to 70 percent of the herbicidal composition.
6. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein the contents of the compound (A) and the compound (B) account for 5 to 60 percent of the herbicidal composition.
7. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein the contents of the compound (A) and the compound (B) account for 5 to 50 percent of the herbicidal composition.
8. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, further comprising a filler and/or a surfactant.
9. The herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1, wherein the dosage form is wettable powder, water-soluble granules, water-soluble liquid, emulsifiable concentrate, suspending agent, microcapsule, microemulsion, aqueous emulsion, suspoemulsion, microcapsule suspension-suspending agent, water dispersible granules, ultra-low volume liquid, tablets, low volume dispersible granules, pills or dry suspension.
10. Use of the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 for controlling undesired plant germination or growth.
11. Use of the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 for controlling undesired plant germination or growth of grassy weeds, sedge weeds and broadleaf weeds.
12. Use of a herbicidal composition comprising metazosulfuron and oxyfluorfen according to claim 1 for controlling barnyard grass (Echinochloa crus _ galli (L.) P. Beauv.), green bristlegrass (Setaria virdis (L.) Beauv.), crab grass (Digitaria sanguinalis (L.) Scop.), Japanese stephania japonica (Leptochloa chinensis), wild oat grass (Avenfatua L.), Chenopodium album (L.), chickweed (Stellaria media mellea.), chickweed (Stellaria media Media (L.), Lugliola grass (Schoenoptus juncoides Roxb.), Cyperus heterophylla (Cyperus difformis L.), Monochoria (Monochoria variola), and Avenus sativa (Royle.) for controlling undesired plant germination of Echinochloa, Roylera, Williaceae, or Royle grass (Williaceae).
13. Use of the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 for controlling undesired germination or growth of plants in rice, wheat, barley, rye, rape, canola, beet, maize, turf, cotton, vegetables, sugar cane, soybean, broadleaf weeds, cyperaceae weeds, gramineae weeds.
14. A method for controlling undesired plants, which comprises applying the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 to undesired plants or their growing field to thereby control the germination or growth of the undesired plants.
15. A method of controlling undesirable vegetation, comprising: (i) the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 is applied to undesired plants or their growing field before the undesired plants germinate (before germination), (ii) after the undesired plants germinate (after germination), or (iii) at (i) and (ii) so as to control the undesired plants from germinate or grow.
16. A method for controlling undesired plants, which comprises contacting the undesired plants or a place where they grow with the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1.
17. A method for controlling undesired plants, which comprises applying the herbicidal composition as claimed in claim 1 to soil or water to control the germination or growth of undesired plants.
18. A method for controlling undesired plants, which comprises applying the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 to undesired plants or their growing field to thereby control the germination or growth of the undesired plants.
19. A method for controlling undesired plants, which comprises applying the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 to soil or water to prevent the germination or growth of undesired plants.
20. A method of controlling undesirable vegetation which comprises applying a herbicidal composition comprising metazosulfuron and oxyfluorfen of claim 1 to a plant of a useful crop, to the seed of a useful crop, or to other reproductive part of a useful crop.
21. A method for controlling undesired plants, which comprises adding the herbicidal composition containing metazosulfuron and oxyfluorfen according to claim 1 to irrigation water and applying it to the undesired plants or their growing sites by using a ground or aerial duster, sprayer, or granule applicator.
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CN106106488A (en) * 2016-06-19 2016-11-16 李祥英 Containing flazasulfuron and the Herbicidal combinations of Oxyfluorfen

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