WO2013180129A1 - 除草組成物 - Google Patents
除草組成物 Download PDFInfo
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- WO2013180129A1 WO2013180129A1 PCT/JP2013/064768 JP2013064768W WO2013180129A1 WO 2013180129 A1 WO2013180129 A1 WO 2013180129A1 JP 2013064768 W JP2013064768 W JP 2013064768W WO 2013180129 A1 WO2013180129 A1 WO 2013180129A1
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- Prior art keywords
- weed
- compound
- weeds
- salt
- herbicidal
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Classifications
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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
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/10—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings with sulfur as the ring hetero atom
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
Definitions
- the present invention relates to (a) nicosulfuron or a salt thereof (hereinafter abbreviated as Compound A), (b) dimethenamide-P or a salt thereof (hereinafter abbreviated as Compound B), (c) topramesone or a salt thereof (hereinafter referred to as Compound A). , Abbreviated as compound C).
- Patent Document 1 discloses a method for controlling undesired plants, which comprises applying dimethenamide and at least one other herbicide selected from amino acid biosynthesis inhibitors to undesired plants.
- Patent Document 2 discloses a synergistic herbicidal composition containing a 3-heterocyclyl-substituted benzoyl derivative and a specific herbicide.
- the specific combination of Compound A, Compound B, and Compound C, which are the herbicidal active ingredients of the present invention exhibits a remarkable synergistic effect when they are combined. There is also no specific description regarding.
- An object of the present invention is to provide a herbicidal composition having a broader herbicidal spectrum and high activity, and further to provide a method for controlling undesired plants using them or suppressing their growth.
- the present inventors applied each compound alone or in combination by combining a specific compound A, compound B and compound C, which are herbicidal active ingredients of the present invention.
- the present invention was completed by obtaining the knowledge that an excellent herbicidal effect that could not be expected was obtained as compared with the case where two kinds were applied in combination (for example, a combination of Compound A and Compound C). That is, the present invention has the following gist.
- a herbicidal composition containing (a) nicosulfuron or a salt thereof, (b) dimethenamide-P or a salt thereof, and (c) toprazone or a salt thereof.
- the mixing ratio of (a) and (b) is 1: 1.3 to 1: 400 by weight ratio, and the mixing ratio of (a) and (c) is 15: 1 to 1 by weight ratio. : 30 herbicidal composition according to (1) above.
- the undesirable plant is a Convolvulaceae weed, Solanum weed, Gramineae weed, Aoiaceae weed, Asteraceae weed or Legume weed.
- the undesired plants are grass weeds, mallow weeds, asteraceae weeds, or legume weeds.
- the method according to (4) above, wherein the undesirable plant is an annual or perennial grass weed.
- the method according to (4) above, wherein the undesired plant is a highly harmful weed in a corn field.
- the herbicidal composition of the present invention can control a wide range of undesired plants occurring on cultivated land or non-cultivated land.
- the herbicidal activity exhibits an effect that is more than that in which each herbicidal activity is added additively, that is, synergistic action.
- Such a herbicidal composition of the present invention can be applied at a low dose as compared with the case where each drug is applied alone, and is therefore effective in reducing the environmental load on the application area or its surroundings.
- the herbicidal composition of the present invention has (1) a composition containing compound A and compound B, and when compound C is further mixed therewith, (2) a composition containing compound B and compound C, Further, when compound A is mixed therewith, (3) a remarkable herbicidal activity is exhibited when compound B is further mixed therewith against the composition containing compound A and compound C.
- the effect is that the herbicidal activity of the mixed use of the first herbicidal active ingredient and the second herbicidal active ingredient and the herbicidal activity of the third herbicidal active ingredient are merely additively added, that is, synergistic action is achieved. Is.
- E 2 ( ⁇ + ⁇ + ⁇ ) ⁇ ( ⁇ + ⁇ + ⁇ ) / 100 + ( ⁇ ) / 10000
- ⁇ Growth inhibition rate when herbicide X is treated in an amount of xg / ha
- ⁇ growth inhibition rate when herbicide Y is treated in an amount of yg / ha
- ⁇ growth inhibition rate when herbicide Z is treated in the amount of zg / ha
- E 1 Growth inhibition rate expected when herbicide X is treated with xg / ha and herbicide Y is treated with yg / ha
- E 2 Growth inhibition rate expected when herbicide X is treated with xg / ha, herbicide Y with yg / ha and herbicide Z with zg / ha.
- the herbicidal composition of the present invention exhibits a synergistic effect when calculated by the above formula.
- nicosulfuron (generic name) is 2- (4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl) -N, N-dimethylnicotinamide.
- dimethenamide-P (generic name) is (S) -2-chloro-N- (2,4-dimethyl-3-thienyl) -N- (2-methoxy-1-methylethyl) acetamide.
- topramezone (generic name) is [3- (4,5-dihydro-1,2-oxazol-3-yl) -4-mesyl-o-tolyl] (5-hydroxy-1-methylpyrazole-4 -Yl) methanone.
- any salt may be used as long as it is agriculturally acceptable.
- alkali metal salts such as sodium salt and potassium salt
- alkaline earth metal salts such as magnesium salt and calcium salt
- ammonium salts such as monomethylammonium salt, dimethylammonium salt and triethylammonium salt
- hydrochloride salt and perchlorine Inorganic acid salts such as acid salts, sulfates and nitrates
- organic acid salts such as acetates and methanesulfonates.
- the mixing ratio of each compound in the present invention must be appropriately adjusted according to the formulation form, weather conditions, undesirable plant type and growth situation, etc., and cannot be determined unconditionally, but the mixing ratio of Compound A and Compound B Is, for example, 1: 1.3 to 1: 400 by weight, desirably 1: 2.5 to 1: 150, and the mixing ratio of Compound A and Compound C is, for example, 15: 1 to 1:30, preferably 6.7: 1 to 1:10.
- Compound A is 5 to 150 g / ha, preferably 10 to 100 g / ha
- Compound B is 200 to 2000 g / ha, preferably 250 to 1500 g / ha
- Compound C is 10 to 150 g / ha, Desirably, it is 15 to 100 g / ha.
- the herbicidal composition of the present invention may be applied to an undesired plant or to a place where they grow. Moreover, you may apply at any time before and after generation
- various spraying forms such as soil treatment, foliage treatment, irrigation treatment, flooding treatment can be selected, farmland such as upland, orchards, paddy fields, or shores, fallow fields, playgrounds, golf courses, It can be applied to vacant land, forests, factory premises, tracksides, roadsides, etc.
- the herbicidal composition of the present invention can control a wide range of undesirable plants such as annual and perennial weeds.
- cygnus weeds (sedge ( Cyperus spp.))
- cyperus weeds purple nutsedge ( Cyperus rotundus L.)
- crabs smallflower umbrella sedge ( Cyperus difformis L.)
- Yellow nutsedge Cyperus esculentus L.
- cyperus amur cyperus ( Cyperus microiria Steud.)
- Etc. Spikesedge
- Kyllinga spp. [Assassic weed green kyllinga ( Kyllinga brevifolia Rottb.
- barnyard grass Echinochloa spp.
- barnyardgrass Echinochloa crus-galli L.
- barnyardgrass early watergrass (Echinochloa oryzicola vasing. )
- Shirohie Japanese millet (Echinochloa utilis Ohwi et Yabuno)
- Digitaria weeds crabgrass (Digitaria spp.)
- crabgrass weeds e.g. crabgrass (summergrass (Digitaria ciliaris (Retz.
- ryegrass Lolium spp.) [Examples of Italian ryegrass (Italian ryegrass ( Lolium multiflorum Lam.)), Etc.], foxtail weed (foxtail (Setaria spp.)) [as Setaria weeds such foxtail (green foxtail (Setaria viridis L.) ) and the like], chub Weeds (sorghum (Sorghum spp.)) [As the sorghum weeds such Johnson grass (johnsongrass (Sorghum halepense (L.) Pers.), A shutter Kane (shattercane (Sorghum bicolor (L.) Moench.
- oat Avena spp.
- oat Avena spp.
- oat wild oat ( Avena fatua L.)
- Species weeds Brome ( Bromus spp.)
- Examples of the genus Sparrows ( Bromus spp.) Include drooping brome ( Bromus tectorum L.), Japanese brome ( Bromus japonicus Thunb.), Etc.) Strawberryweed genus weed (meadowgrass ( Poa spp.)) (As strawberry genus weed, for example, bluegrass ( Poa annua L.)), foxtail grass ( Alopecurus spp) .)) [as the alopecurus weeds such Alopecurus (blackgrass (Alopecurus myosuroides Huds.) , shortawn foxtail (Alopecurus aequalis Sobol.
- bra carrier weeds signal grass (Brachiaria spp.) [As the bra carrier weeds, e.g.
- Bidens spp Bidens weeds
- the Bidens weeds such Bidens pilosa (hairy beggarticks (Bidens pilosa L .)), American Sendangsa (devils berggarticks ( Bidens frondosa L.)), Sendangsa ( Bidens biternata (Lour.) Merr.
- Et Sherff beggarticks ( Bidens subalternans DC.), Etc.)], harret bassabane ( Conyza bonariensis) (L.) Cronq.)), Taraxacum officinale (dandelion (Taraxacum officinale Weber)) , Izuhahako weeds (horseweed (Conyz a spp.)) (for example, canadian horseweed ( Conyza canadensis (L.) Cronquist)), cocklebur ( Xanthium spp.)) (for example, For example, Japanese fir (common cocklebur ( Xanthium strumarium L.)) and the like, ragweed ( Ambrosia spp.)) [For example, Ragweed (annual ragweed ( Ambrosia artemisiifolia L.)), etc.
- Tsu Aeschynomene indica weeds proison bean (Sesbania spp.)
- Tesbania spp. rostrate sesbania (Sesbania rostrata Bremek. & Oberm.)
- Fang Natsu Roh Aeschynomene indica sesbania pea (Sesbania cannabina (Retz .) Pers.
- Umbelliferae weeds Umbelliferae weeds (apiaceae) such as; violet (violet (Viola mandshurica W. Becker) ) violaceae weeds such as (violaceae); Niwazekishou (blue-eyedgrass (Sisyrinchium rosulatum Bicknell )) iris weeds (iridaceae) such as; geraniaceae weeds such as the United States Fuuro (carolina geranium (Geranium carolinianum L.) ) (geraniaceae); Lamium purpureum (purple deadnettle (Lamium purpureum L .)), Lamiaceae weeds ( labiatae ) such as henbit ( Lamium amplexicaule L.); velvetleaf ( Abutilon theophrasti MEDIC .)), Mallow weed ( malvaceae ) such as
- Chenopodium weeds (goosefoot (Chenopodium spp)) [the Chenopodium weeds such common lambsquarters (common lambsquarters (Chenopodium album L.) ) and the like] as such Chenopodiaceae weeds (Chenopodiaceae); purslane (common purslane (Portulaca oleracea L.) ) Portulacaceae weeds (portulacaceae) like; Amaranthaceae weeds (. pigweed (Amaranthus spp)) [pigweed Shokuzatsu As, for example Amerikabiyu (prostrate pigweed (Amaranthus blitoides S.
- Amaranthus lividus (livid amaranth (Amaranthus lividus L. ), Purple amaranth (Amaranthus blitum L.)), Hosoaogeitou (smooth pigweed (Amaranthus hybridus L.) , Amaranthus patulus Bertol.), Igahobiyu (powell amaranth (Amaranthus powellii S.Wats. )), Amaranthus viridis (slender amaranth (Amaranthus viridis L.) ), giant e Naga Ao Gay tow (palmer amaranth (Amaranthus palmeri S.Wats.
- Solanum weeds (nightshade (Solanum spp)) [The Solanum weeds such nightshade (black nightshade (Solanum nigrum L.) ) , and the like Solanaceae weeds such as is] (Solanaceae); Polygonum weeds (.
- knotweed (Polygonum spp)) [the Polygonum weeds such Ooinutade (spotted knotweed (Polygonum lapathifolium L.) ), Sanaetade (green smartweed (Polygonum scabrum MOENCH)), etc.], such as polyaceae weed ( polygonaceae ); red crab weed (flexuous bittercress ( Cardamine flexuosa WITH.)), White weed (mustard ( Sinapis spp.)) (For example, Cucurbitaceae miscellaneous such as Sicyos angulatus (burcucumber (Sicyos angulatus L.)) ; (Charlock (Sinapis arvensis L.)) Cruciferae weeds such as and the like] (Cruciferae) (Cucurbitaceae); dayflower (common dayflower (Commelina communis L.) ) commelinaceae weeds (commelinaceae) such as; Heb
- Mock strawberry Duchesnea chrysantha (Zoll et Mor) Miq) rose weeds such as ( rosaceae); Kurumabazakurosou (carpetweed (Mollugo verticillata L.) molluginaceae weeds such as) (molluginacea);.. cleavers (false cleavers (Galium spurium var echinospermon (Wallr) Hayek)), Shirahoshimugura (stickywilly (Galium aparine L.) Rubiaceae weed ( rubiaceae ); and the like.
- the herbicidal composition of the present invention is very useful in practical use. Examples include the following cases. (1) A significant synergistic effect is exhibited, and even if the application amount of each of Compound A, Compound B, and Compound C is small, the excellent herbicidal activity is exhibited, so that the influence on the surrounding environment is suppressed. (2) The persistence of the herbicidal effect is longer than when each of Compound A, Compound B, and Compound C is applied alone or in combination of two (for example, a combination of Compound A and Compound B). . That is, there may be a case where a herbicidal composition having a long-term residual effect can be provided.
- the soil treatment is performed at a high leaf age. In some cases, herbicidal compositions having a wide range of treatment time can be provided.
- the herbicidal composition of the present invention is suitable for the purpose of the present invention
- the herbicide, fungicide, antibiotics other than the above-mentioned active ingredients taking into consideration the application scene, undesirable plant types and growth conditions, etc. It can be used in combination or in combination with plant hormones, insecticides, fertilizers, safeners and the like. In this case, even more excellent effects and functions may be exhibited.
- the other herbicides for example, (1) those which are supposed to show herbicidal activity by disturbing the hormonal action of plants, and (2) they are said to show herbicidal efficacy by inhibiting photosynthesis of plants. (3) It is said that it itself becomes a free radical in the plant body and generates active oxygen to show a fast herbicidal effect.
- the herbicidal composition of the present invention comprises compound A, compound B, and compound C, which are active ingredients, blended with various adjuvants according to a conventional method for preparing agricultural chemicals, and is used in powder, granule, granule wettable powder, water Japanese pills, tablets, pills, capsules (including forms packaged with water-soluble films), aqueous suspensions, oily suspensions, microemulsions, suspoemulsions, aqueous solvents, emulsions, solutions, pastes
- the preparation can be prepared and applied in various forms. That is, as long as it meets the object of the present invention, it can be in any form of preparations commonly used in the art.
- compound A, compound B and compound C may be mixed together to prepare a 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, dimethyl sulfoxide, N, N-dimethylformamide, dimethylacetamide, N-methyl-2-pyrrolidone, alcohol; fatty acid salt, benzoate, polycarboxylate, alkyl Sulfate ester, alkyl sulfate, alkyl aryl sulfate, alkyl diglycol ether sulfate, alcohol sulfate ester, alkyl sulfonate, alkyl aryl sulfonate, aryl sulfonate, lignin sul
- 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.
- auxiliary agents they can be appropriately selected from those known in the art.
- various commonly used adjuvants such as extenders, thickeners, anti-settling agents, antifreeze agents, dispersion stabilizers, safeners, antifungal agents, foaming agents, disintegrants, binders, etc. should 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 in terms of weight percentage.
- a compound A and a compound C prepared together and a compound B prepared as it is or diluted to a predetermined concentration with water or the like, and various spreading agents (if necessary) Surfactant, vegetable oil, mineral oil, etc.) are added and applied to the target plant.
- a compound B and a compound C prepared together and a compound A prepared as such are diluted as they are or with water to a predetermined concentration, and various spreading agents ( Surfactant, vegetable oil, mineral oil, etc.) are added and applied to the target plant.
- Compound A, Compound B and Compound C prepared together are diluted as they are or with water or the like to a predetermined concentration, and various spreading agents (surfactants, vegetable oils, mineral oils, etc.) as necessary.
- the application to the target plant may be mixed and applied simultaneously when diluted to a predetermined concentration with water or the like, or Each may be applied continuously or at appropriate intervals. In order to exhibit the effects of the present invention more effectively, it is preferable to apply Compound A, Compound B and Compound C simultaneously.
- a herbicidal composition containing (a) nicosulfuron or a salt thereof, (b) dimethenamide-P or a salt thereof, and (c) toprazone or a salt thereof.
- the herbicidal composition according to the above (1) comprising (a), (b) and (c) in an amount capable of producing a herbicidal synergistic effect (herbicidal synergistic effective amount).
- the weight ratio of (a) and (b) is from 1: 1.3 to 1: 400, and the weight ratio of (a) to (c) is from 15: 1 to 1:30.
- Herbicidal composition is not construed as being limited to these.
- the weight ratio of (a) and (b) is in the range of 1: 2.5 to 1: 150, and the weight ratio of (a) and (c) is in the range of 6.7: 1 to 1:10.
- the herbicidal composition of (1) Applying the herbicidally effective amount of the herbicidal composition containing (a), (b), and (c) to the undesired plants or the place where they grow, to control or inhibit the undesired plants how to.
- the herbicidally effective amount of (a), the herbicidally effective amount of (b), and the herbicidally effective amount of (c) are applied to an undesirable plant or a place where they grow, thereby controlling or controlling the undesirable plant.
- the adjuvant for formulation is at least one selected from the group consisting of a surfactant, a carrier, a solvent, a vegetable oil, a mineral oil, and a transesterified vegetable oil.
- the herbicidal composition according to the above (1) which controls or suppresses the growth of convolvulaceae weeds, solanaceous weeds, gramineous weeds, mallowaceae weeds, asteraceae weeds or legume weeds.
- the herbicidal composition according to (1) above which controls or inhibits the growth of grasses, mallows, asteraceae or legumes.
- the herbicidal composition according to the above (1) which contains only (a), (b) and (c) as active herbicidal ingredients.
- the undesired plant is a Convolvulaceae weed, Solanum weed, Gramineae weed, Aoiaceae weed, Asteraceae weed or Legume weed.
- the method according to (5) or (6) above, wherein the undesired plant is a grass weed, mallow weed, asteraceae weed or legume weed.
- Test example 1 A 1 / 300,000 ha pot was filled with upland soil and seeds of velvetleaf ( Abutilon theophrasti Medic.) Were sown. One day later, a flowable agent containing nicosulfuron as an active ingredient (trade name: One Hope Emulsion, manufactured by Ishihara Sangyo Co., Ltd.), an emulsion containing dimethenamide-P as an active ingredient (trade name: Spectrum, manufactured by BASF), and topramezone are effective. A predetermined amount of a flowable agent (trade name: Clio, manufactured by BASF) as an ingredient was diluted with water (equivalent to 1,000 L / ha) and treated with a small spray.
- Test example 2 The field soil was put in a 1 / 160,000ha pot and seeds of korean lespedeza (Kummerowia stipulacea (Maxim.) Makino) were sown. One day later, predetermined amounts of One Hope Emulsion (trade name), Clio (trade name), and Spectrum (trade name) were diluted in water (equivalent to 300 L / ha), and the soil was treated with a small spray. On the 14th day after the treatment with the chemical, the growth state of the Malaya spruce was observed with the naked eye, evaluated in the same manner as in Test Example 1, and the calculated growth inhibition rate (%) is shown in Table 2.
- Test example 3 1 / 1,000,000 ha pot was filled with upland field soil and seeds of ragweed (annual ragweed, Ambrosia artemisiifolia L.) were sown. When ragweed reaches 6.0-8.0 leaf stage, dilute a predetermined amount of One Hope Emulsion (trade name), Clio (trade name), and Spectrum (trade name) in water (equivalent to 300L / ha), and then foliage with a small spray Processed. On the 20th day after the chemical treatment, the growth state of ragweed was observed with the naked eye, evaluated in the same manner as in Test Example 1, and the calculated growth inhibition rate (%) is shown in Table 3.
- ragweed annual ragweed, Ambrosia artemisiifolia L.
- Test example 4 1 / 160,000ha pot was filled with upland soil and seeded with oat (wild oat, Avena fatua L.) seeds. One day later, predetermined amounts of One Hope Emulsion (trade name), Clio (trade name), and Spectrum (trade name) were diluted in water (equivalent to 300 L / ha), and the soil was treated with a small spray. On the 28th day after the chemical treatment, the growth state of oats was visually observed and evaluated in the same manner as in Test Example 1, and the calculated growth inhibition rate (%) is shown in Table 4.
- the herbicidal composition of the present invention has a broad herbicidal spectrum, is highly active and has a long-lasting effect, in particular, broadens the herbicidal spectrum against grass species and is resistant to ALS inhibitors and the like. Application is possible, and expansion of application scenes is expected, and it is useful as a herbicidal composition. Furthermore, the herbicidal composition of the present invention can delay the development of resistance against weeds that acquire resistance by repeated application of specific herbicides by combining active ingredients having different action mechanisms, etc. Is extremely useful. The entire contents of the specification, claims, and abstract of Japanese Patent Application No. 2012-120607 filed on May 28, 2012 are incorporated herein as the disclosure of the specification of the present invention. Is.
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Abstract
Description
特許文献2には3-ヘテロシクリル置換ベンゾイル誘導体と特定の除草剤とを含む相乗性除草性組成物について開示されている。
しかしながら、上記のいずれの特許文献においても、本発明の除草有効成分である化合物Aと化合物Bと化合物Cとの具体的な組合せに関しても、それらを組み合わせたときに、顕著な相乗作用を奏することに関しても具体的な記載はされていない。
本発明の目的は、より幅広い殺草スペクトルを持ち、高活性な除草組成物を提供すること、さらに、それらを用いた望ましくない植物を防除又はその生育を抑制する方法を提供することである。
即ち、本発明は、以下の要旨を有するものである。
(1)(a)ニコスルフロン又はその塩と、(b)ジメテナミド-P又はその塩と、(c)トプラメゾン又はその塩とを含有する除草組成物。
(2)(a)と(b)との混合比率が重量比で1:1.3~1:400であり、(a)と(c)との混合比率が重量比で15:1~1:30である、上記(1)に記載の除草組成物。
(3)ヒルガオ科雑草、ナス科雑草、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草を、防除又はその生育を抑制する、上記(1)に記載の除草組成物。
(4)(a)ニコスルフロン又はその塩の除草有効量と、(b)ジメテナミド-P又はその塩の除草有効量と、(c)トプラメゾン又はその塩の除草有効量とを、望ましくない植物又はそれらが生育する場所に施用し、望ましくない植物を防除又はその生育を抑制する方法。
(5)(a)を5~150g/ha、(b)を200~2000g/ha、(c)を10~150g/ha施用する、上記(4)に記載の方法。
(6)望ましくない植物が、ヒルガオ科雑草、ナス科雑草、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草である、上記(4)に記載の方法。
(7)望ましくない植物が、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草である、上記(4)に記載の方法。
(8)望ましくない植物が、一年生又は多年生のイネ科雑草である、上記(4)に記載の方法。
(9)望ましくない植物が、トウモロコシ畑における強害雑草である、上記(4)に記載の方法。
このような本発明の除草組成物は、各薬剤を単独で施用する場合に比し、低薬量で施用できるため、施用地域又はその周辺への環境負荷の軽減にも有効である。
本発明の除草組成物は、(1)化合物Aと化合物Bを含有する組成物に対し、さらにそこに化合物Cを混用した場合、(2)化合物Bと化合物Cを含有する組成物に対し、さらにそこに化合物Aを混用した場合、(3)化合物Aと化合物Cを含有する組成物に対し、さらにそこに化合物Bを混用した場合に、顕著な除草活性を示す。その効果は、第1の除草有効成分と第2の除草有効成分との混用の除草活性と第3の除草有効成分の除草活性が単に相加的に加えられる以上の効果、即ち相乗作用を奏するものである。
2種の有効成分を組み合わせた場合の除草活性が、その2種の有効成分各々の除草活性の単純な合計(期待される活性)よりも大きくなる場合、これを相乗作用という。
2種の有効成分の組合せにより期待される活性は、次のようにして計算することができる(Colby S.R.、「Weed」15巻、20~22頁、1967年を参照)。
E1=(α+β)-(αβ)/100
3種の有効成分を組み合わせた場合には、同様に、次のようにして計算することができる。
E2=(α+β+γ)-(αβ+αγ+βγ)/100+(αβγ)/10000
ただし、上記式中、
α=除草剤Xをxg/haの量で処理した時の生育抑制率、
β=除草剤Yをyg/haの量で処理した時の生育抑制率、
γ=除草剤Zをzg/haの量で処理した時の生育抑制率、
E1=除草剤Xをxg/ha及び除草剤Yをyg/haの量で処理した時に期待される生育抑制率、
E2=除草剤Xをxg/ha、除草剤Yをyg/ha及び除草剤Zをzg/haの量で処理した時に期待される生育抑制率。
すなわち、実際の生育抑制率(実測値)が前記計算による生育抑制率(計算値)より大きい場合には、組合せによる活性は相乗作用を示すということができる。
本発明の除草組成物は、前記式で計算した場合、相乗作用を示す。
また、土壌処理、茎葉処理、灌水処理、湛水処理のような種々の散布形態を選択することができ、畑地、果樹園、水田等の農耕地、或いは畦畔、休耕田、運動場、ゴルフ場、空き地、森林、工場敷地、線路脇、道路脇等の非農耕地への適用が可能である。
スズメノチャヒキ属雑草(brome (Bromus spp.))〔スズメノチャヒキ属雑草としては、例えばウマノチャヒキ(drooping brome (Bromus tectorum L.)、スズメノチャヒキ(japanese brome (Bromus japonicus Thunb.))などが挙げられる〕、イチゴツナギ属雑草(meadowgrass (Poa spp.))〔イチゴツナギ属雑草としては、例えばスズメノカタビラ(annual bluegrass(Poa annua L.))などが挙げられる〕、スズメノテッポウ属雑草(foxtail grass (Alopecurus spp.))〔スズメノテッポウ属雑草としては、例えばスズメノテッポウ(blackgrass (Alopecurus myosuroides Huds.)、shortawn foxtail (Alopecurus aequalis Sobol. var. amurensis))などが挙げられる〕、バミューダグラス(bermudagrass(Cynodon dactylon (L.) Pers.))、キビ属雑草(panic grass(Panicum spp.))〔キビ属雑草としては、例えばギニアキビ(guinea grass(Panicum maximum Jacq.))、オオクサキビ(fall panicum(Panicum dichotomiflorum (L.) Michx.))などが挙げられる〕、ブラキャリア属雑草(signal grass(Brachiaria spp.))〔ブラキャリア属雑草としては、例えばplantain signal grass(Brachiaria plantaginea (LINK) Hitchc.)、palisade signal grass(Brachiaria decumbens Stapf)、mauritius signal grass(Brachiaria mutica (Forssk.) Stapf)などが挙げられる〕、スズメノヒエ属雑草(paspalum (Paspalum spp.) 〔スズメノヒエ属雑草としては、例えばシマスズメノヒエ(dallisgrass (Paspalum dilatatum Poir.))、タチスズメノヒエ (vasey's grass (Paspalum urvillei Steud.))などが挙げられる〕、ロットボエリア属雑草 (itchgrass (Rottboellia spp.) 〔ロットボエリア属雑草としては、例えばツノアイアシ(itchgrass (Rottboellia cochinchinensis (LOUR.) W.D.CLAYTON))などが挙げられる〕、クリノイガ属雑草 (sandbur (Cenchrus spp.)) 〔クリノイガ属雑草としては、例えばシンクリノイガ(southern sandbur (Cenchrus echinatus L.))などが挙げられる〕のようなイネ科雑草(gramineae);オオイヌノフグリ(persian speedwell(Veronica persica Poir.))、タチイヌノフグリ(corn speedwell(Veronica arvensis L.))のようなゴマノハグサ科雑草(scrophulariaceae);センダングサ属雑草(beggar ticks(Bidens spp.))〔センダングサ属雑草としては、例えばコセンダングサ(hairy beggarticks(Bidens pilosa L.))、アメリカセンダングサ (devils berggarticks(Bidens frondosa L.))、センダングサ(Bidens biternata (Lour.) Merr. et Sherff 、beggarticks(Bidens subalternans DC.))などが挙げられる〕、アレチノギク(hairy fleabane(Conyza bonariensis (L.) Cronq.))、セイヨウタンポポ(dandelion(Taraxacum officinale Weber))、イズハハコ属雑草(horseweed (Conyza spp.))〔イズハハコ属雑草としては、例えばヒメムカシヨモギ(canadian horseweed (Conyza canadensis (L.) Cronquist))などが挙げられる〕、オナモミ属雑草(cocklebur (Xanthium spp.))〔オナモミ属雑草としては、例えばオナモミ(common cocklebur (Xanthium strumarium L.))などが挙げられる〕、ブタクサ属雑草(ragweed (Ambrosia spp.))〔ブタクサ属雑草としては、例えばブタクサ(annual ragweed(Ambrosia artemisiifolia L.))などが挙げられる〕、キオン属雑草(ragwort (Senecio spp.))〔キオン属雑草としては、例えばノボロギク(old-man-in-the-spring (Senecio vulgaris L.))などが挙げられる〕のようなキク科雑草(compositae);タヌキマメ属雑草(rattlepod or rattlebox (Crotalaria spp.))〔タヌキマメ属雑草としては、例えばクロタラリア(sunn-hemp(Crotalaria juncea L.))などが挙げられる〕、ツノクサネム属雑草(poison bean(Sesbania spp.))〔ツノクサネム属雑草としては、例えばセスバニア(rostrate sesbania(Sesbania rostrata Bremek. & Oberm.))、キバナツノクサネム(sesbania pea(Sesbania cannabina (Retz.) Pers. ))などが挙げられる〕、マルバヤハズソウ(korean lespedeza (Kummerowia stipulacea (Maxim.) Makino))、シロツメクサ(white clover(Trifolium repens L.))のようなマメ科雑草(leguminosae);オランダミミナグサ(sticky chickweed(Cerastium glomeratum Thuill.))、ハコベ属雑草(starwort (Stellaria spp.))〔ハコベ属雑草としては、例えばハコベ(common chickweed(Stellaria media L.))などが挙げられる〕のようなナデシコ科雑草(caryophyllaceae);シマニシキソウ(garden spurge(Euphorbia hirta L.))、エノキグサ(threeseeded copperleaf(Acalypha australis L.))、ショウジョウソウ(fireplant(Euphorbia heterophylla L.))のようなトウダイグサ科雑草(euphorbiaceae);オオバコ(asiatic plantain(Plantago asiatica L.))のようなオオバコ科雑草(plantaginaceae);カタバミ(creeping woodsorrel(Oxalis corniculata L.))のようなカタバミ科雑草(oxalidaceae);チドメグサ(lawn pennywort(Hydrocotyle sibthorpioides Lam.))のようなセリ科雑草(apiaceae);スミレ(violet(Viola mandshurica W. Becker))のようなスミレ科雑草(violaceae);ニワゼキショウ(blue-eyedgrass(Sisyrinchium rosulatum Bicknell))のようなアヤメ科雑草(iridaceae);アメリカフウロ(carolina geranium(Geranium carolinianum L.))のようなフウロソウ科雑草(geraniaceae);ヒメオドリコソウ(purple deadnettle(Lamium purpureum L.))、ホトケノザ(henbit (Lamium amplexicaule L.))のようなシソ科雑草(labiatae);イチビ(velvetleaf(Abutilon theophrasti MEDIC.))、アメリカキンゴジカ(prickly sida (Sida spinosa L.))のようなアオイ科雑草(malvaceae);アメリカアサガオ(ivy-leaved morningglory(Ipomoea hederacea (L.) Jacq.))、マルバアサガオ(common morningglory(Ipomoea purpurea ROTH))、ルコウソウ(cypressvine morningglory(Ipomoea quamoclit L.))、Ipomoea grandifolia (DAMMERMANN) O'DONNELL、hairy merremia(Merremia aegyptia (L.) URBAN)、セイヨウヒルガオ(field bindweed(Convolvulus arvensis L.))のようなヒルガオ科雑草(convolvulaceae);アカザ属雑草(goosefoot (Chenopodium spp.))〔アカザ属雑草としては、例えばシロザ(common lambsquarters(Chenopodium album L.))などが挙げられる〕のようなアカザ科雑草(chenopodiaceae);スベリヒユ(common purslane(Portulaca oleracea L.))のようなスベリヒユ科雑草(portulacaceae);ヒユ属雑草(pigweed(Amaranthus spp.))〔ヒユ属雑草としては、例えばアメリカビユ(prostrate pigweed(Amaranthus blitoides S. Wats.))、イヌビユ(livid amaranth(Amaranthus lividus L.)、purple amaranth(Amaranthus blitum L.))、ホソアオゲイトウ(smooth pigweed(Amaranthus hybridus L.)、Amaranthus patulus Bertol.)、イガホビユ(powell amaranth(Amaranthus powellii S.Wats.))、ホナガイヌビユ(slender amaranth(Amaranthus viridis L.))、オオホナガアオゲイトウ(palmer amaranth(Amaranthus palmeri S.Wats.))、アオゲイトウ(redroot pigweed(Amaranthus retroflexus L.))、ヒユモドキ(tall waterhemp (Amaranthus tuberculatus (Moq.) Sauer.))、タリホノアオゲイトウ(common waterhemp(Amaranthus tamariscinus Nutt.))、ハリビユ(thorny amaranth(Amaranthus spinosus L.))、ataco(Amaranthus quitensis Kunth.)、ホソバイヌビユ(roughfruit amaranth(Amaranthus rudis Sauer.))などが挙げられる〕のようなヒユ科雑草(amaranthaceae);ナス属雑草(nightshade (Solanum spp.))〔ナス属雑草としては、例えばイヌホオズキ(black nightshade(Solanum nigrum L.))などが挙げられる〕のようなナス科雑草(solanaceae);タデ属雑草(knotweed (Polygonum spp.))〔タデ属雑草としては、例えばオオイヌタデ(spotted knotweed(Polygonum lapathifolium L.))、サナエタデ(green smartweed(Polygonum scabrum MOENCH))などが挙げられる〕のようなタデ科雑草(polygonaceae);タネツケバナ(flexuous bittercress(Cardamine flexuosa WITH.))、シロガラシ属雑草(mustard (Sinapis spp.))〔シロガラシ属雑草としては、例えばノハラガラシ(Charlock (Sinapis arvensis L.))などが挙げられる〕のようなアブラナ科雑草(cruciferae);アレチウリ(burcucumber(Sicyos angulatus L.))のようなウリ科雑草(cucurbitaceae);ツユクサ(common dayflower(Commelina communis L.))のようなツユクサ科雑草(commelinaceae);ヘビイチゴ(mock strawberry(Duchesnea chrysantha ( Zoll. et Mor. ) Miq.))のようなバラ科雑草(rosaceae);クルマバザクロソウ(carpetweed(Mollugo verticillata L.))のようなザクロソウ科雑草(molluginacea);ヤエムグラ(false cleavers(Galium spurium var. echinospermon (Wallr.)Hayek))、シラホシムグラ(stickywilly(Galium aparine L.))のようなアカネ科雑草(rubiaceae);などが挙げられる。
(1)顕著な相乗作用を奏し、化合物A、化合物B、及び化合物Cのそれぞれの施用量が少量であっても良好な除草活性を奏することから、周辺環境に与える影響が抑えられる。
(2)化合物A、化合物B、及び化合物Cのそれぞれを単独で施用又は2種を組合せて施用(たとえば化合物Aと化合物Bとの組合せ)する場合に比して、除草効果の持続性が長い。即ち、長期残効性を持った除草組成物を提供できる場合がある。
(3)化合物A、化合物B、及び化合物Cのそれぞれを単独で施用又は2種を組合せて施用(たとえば化合物Aと化合物Bとの組合せ)する場合に比して、イネ科草種及び広葉草種の両方に高い効果を示す、広スペクトラムの除草組成物を提供できる場合がある。
(4)化合物A、化合物B、及び化合物Cのそれぞれを単独で施用又は2種を組合せて施用(たとえば化合物Aと化合物Bとの組合せ)する場合に比して、除草剤抵抗性雑草や低感受性雑草の出現を抑えられる場合がある。
(5)農耕地、特にトウモロコシ畑において、強害雑草として問題となっているヒエ属、メヒシバ属、エノコログサ属、イチゴツナギ属、カラスムギ属、シバムギ属、スズメノテッポウ属、オヒシバ属、ツノアイアシ属、モロコシ属、キビ属等のような、一年生イネ科雑草及び多年生イネ科雑草を防除できる。
(6)化合物A、化合物B、及び化合物Cのそれぞれを単独で施用又は2種を組合せて施用(たとえば化合物Aと化合物Bとの組合せ)する場合に比して、土壌処理から高葉令での茎葉処理まで、幅広い処理適期を持った除草組成物を提供できる場合がある。
前記他の除草剤としては、例えば、(1)植物のホルモン作用を攪乱することで除草効力を示すとされているもの、(2)植物の光合成を阻害することで除草効力を示すとされているもの、(3)それ自身が植物体中でフリーラジカルとなり、活性酸素を生成させて速効的な除草効力を示すとされているもの、(4)植物のクロロフィル生合成を阻害し、光増感過酸化物質を植物体中に異常蓄積させることで除草効力を示すとされているもの、(5)カロチノイドなどの植物の色素生合成を阻害し、白化作用を特徴とする除草効力を示すとされているもの、(6)イネ科植物に特異的に除草効力が強く認められるもの、(7)植物のアミノ酸生合成を阻害することで除草効力を示すとされているもの、(8)植物の細胞有糸分裂を阻害することで除草効力を示すとされているもの、(9)植物のタンパク質生合成あるいは脂質生合成を阻害することで除草効力を示すとされているもの、(10)植物に寄生することで除草効力を示すとされているもの、などが挙げられる。
本発明の除草組成物における有効成分と各種補助剤との配合割合は、重量%比で0.001:99.999~95:5、望ましくは0.005:99.995~90:10程度とすることができる。
(1)化合物A、化合物B及び化合物Cを別々に製剤調製したものを、そのまま、若しくは水等で所定濃度に希釈し、必要に応じて各種展着剤(界面活性剤、植物油、鉱物油など)を添加して、対象植物に施用する。
(2-1)化合物A及び化合物Bを一緒に製剤調製したものと、化合物Cを製剤調製したものとを、そのまま、若しくは水等で所定濃度に希釈し、必要に応じて各種展着剤(界面活性剤、植物油、鉱物油など)を添加して、対象植物に施用する。
(2-2)化合物A及び化合物Cを一緒に製剤調製したものと、化合物Bを製剤調製したものとを、そのまま、若しくは水等で所定濃度に希釈し、必要に応じて各種展着剤(界面活性剤、植物油、鉱物油など)を添加して、対象植物に施用する。
(2-3)化合物B及び化合物Cを一緒に製剤調製したものと、化合物Aを製剤調製したものとを、そのまま、若しくは水等で所定濃度に希釈し、必要に応じて各種展着剤(界面活性剤、植物油、鉱物油など)を添加して、対象植物に施用する。
(3)化合物A、化合物B及び化合物Cを一緒に製剤調製したものを、そのまま、若しくは水等で所定濃度に希釈し、必要に応じて各種展着剤(界面活性剤、植物油、鉱物油など)を添加して、対象植物に施用する。
前記施用方法(1)及び(2-1)~(2-3)において、対象植物への施用は、例えば、水等で所定濃度に希釈する時に混合して同時に施用してもよいし、或いは各々を連続して若しくは適切な間隔をあけて施用してもよい。本発明の効果をより効果的に発揮させるには、化合物A、化合物B及び化合物Cを同時に施用することが好ましい。
(1)(a)ニコスルフロン又はその塩と、(b)ジメテナミド-P又はその塩と、(c)トプラメゾン又はその塩とを含有する除草組成物。
(2)(a)と(b)と(c)とを除草相乗作用を奏する量(除草相乗有効量)で含有する、前記(1)の除草組成物。
(3)(a)と(b)の重量比が1:1.3~1:400、(a)と(c)の重量比が15:1~1:30の範囲である、前記(1)の除草組成物。
(4)(a)と(b)の重量比が1:2.5~1:150、(a)と(c)の重量比が6.7:1~1:10の範囲である、前記(1)の除草組成物。
(5)(a)と(b)と(c)とを含有する除草組成物の除草有効量を、望ましくない植物又はそれらが生育する場所に施用し、望ましくない植物を防除又はその生育を抑制する方法。
(6)(a)の除草有効量と、(b)の除草有効量と、(c)の除草有効量とを、望ましくない植物又はそれらが生育する場所に施用し、望ましくない植物を防除又はその生育を抑制する方法。
(7)望ましくない植物が、除草性化合物に対する感受性が低下した雑草である、前記(5)又は(6)の方法。
(8)望ましくない植物が、ALS(アセト乳酸合成酵素)阻害剤に対する感受性が低下した雑草である、前記(5)又は(6)の方法。
(9)(a)の除草相乗作用を奏する量(除草相乗有効量)と、(b)の除草相乗作用を奏する量(除草相乗有効量)と、(c)の除草相乗作用を奏する量(除草相乗有効量)とを施用する、前記(5)又は(6)の方法。
(10)(a)を5~150g/ha、(b)を200~2000g/ha、(c)を10~150g/haを施用する、前記(5)又は(6)の方法。
(11)(a)を10~100g/ha、(b)を250~1500g/ha、(c)を15~100g/haを施用する、前記(5)又は(6)の方法。
(12)さらに、(d)単独では除草効果を示さない製剤用補助剤を含有する、前記(1)の除草組成物。
(13)(d)製剤用補助剤が界面活性剤、担体、溶剤、植物油、鉱物油、及びエステル交換植物油からなる群より選ばれる少なくとも1種である、前記(12)の除草組成物。
(14)ヒルガオ科雑草、ナス科雑草、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草を、防除又はその生育を抑制する、前記(1)に記載の除草組成物。
(15)イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草を、防除又はその生育を抑制する、前記(1)に記載の除草組成物。
(16)除草有効成分として、(a)、(b)及び(c)のみを含有する、前記(1)の除草組成物。
(17)望ましくない植物が、ヒルガオ科雑草、ナス科雑草、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草である、前記(5)又は(6)の方法。
(18)望ましくない植物が、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草である、前記(5)又は(6)の方法。
1/300,000haポットに畑作土壌をつめ、イチビ(velvetleaf、Abutilon theophrasti Medic.)の種子を播種した。その1日後、ニコスルフロンを有効成分とするフロアブル剤(商品名:ワンホープ乳剤、石原産業社製)、ジメテナミド-Pを有効成分とする乳剤(商品名:Spectrum、BASF社製)、及びトプラメゾンを有効成分とするフロアブル剤(商品名:Clio、BASF社製)の所定量を水(1,000L/ha相当)に希釈し、小型スプレーで土壌処理した。
薬剤処理後、28日目にイチビの生育状態を肉眼で観察調査し、後記評価基準に従って評価した。生育抑制率(%)〔実測値〕及びコルビー(Colby)の方法により算出した生育抑制率(%)〔計算値〕を第1表に示す。
生育抑制率(%)=0(無処理区同等)~100(完全枯殺)の抑草率(%)
1/160,000haポットに畑作土壌をつめ、マルバヤハズソウ(korean lespedeza、Kummerowia stipulacea (Maxim.) Makino)の種子を播種した。その1日後、ワンホープ乳剤(商品名)、Clio(商品名)、及びSpectrum(商品名)の所定量を水(300L/ha相当)に希釈し、小型スプレーで土壌処理した。
薬剤処理後、14日目にマルバヤハズソウの生育状態を肉眼で観察調査し、前記試験例1と同様に評価し、算出した生育抑制率(%)を第2表に示す。
1/1,000,000haポットに畑作土壌をつめ、ブタクサ(annual ragweed、Ambrosia artemisiifolia L.)の種子を播種した。ブタクサが6.0-8.0葉期に達したとき、ワンホープ乳剤(商品名)、Clio(商品名)、及びSpectrum(商品名)の所定量を水(300L/ha相当)に希釈し、小型スプレーで茎葉処理した。
薬剤処理後、20日目にブタクサの生育状態を肉眼で観察調査し、前記試験例1と同様に評価し、算出した生育抑制率(%)を第3表に示す。
1/160,000haポットに畑作土壌をつめ、カラスムギ(wild oat、Avena fatua L.)の種子を播種した。その1日後、ワンホープ乳剤(商品名)、Clio(商品名)、及びSpectrum(商品名)の所定量を水(300L/ha相当)に希釈し、小型スプレーで土壌処理した。
薬剤処理後、28日目にカラスムギの生育状態を肉眼で観察調査し、前記試験例1と同様に評価し、算出した生育抑制率(%)を第4表に示す。
さらに、本発明の除草組成物は、異なる作用メカニズムを有する有効成分を組み合わせることにより、特定の除草剤の繰り返し施用により抵抗性を獲得する雑草に対して、抵抗性の発達を遅らせることができるなど、極めて有用である。
なお、2012年5月28日に出願された日本特許出願2012-120607号の明細書、特許請求の範囲、及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。
Claims (9)
- (a)ニコスルフロン又はその塩と、(b)ジメテナミド-P又はその塩と、(c)トプラメゾン又はその塩とを含有する除草組成物。
- (a)と(b)との混合比率が重量比で1:1.3~1:400であり、(a)と(c)との混合比率が重量比で15:1~1:30である、請求項1に記載の除草組成物。
- ヒルガオ科雑草、ナス科雑草、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草を、防除又はその生育を抑制する、請求項1に記載の除草組成物。
- (a)ニコスルフロン又はその塩の除草有効量と、(b)ジメテナミド-P又はその塩の除草有効量と、(c)トプラメゾン又はその塩の除草有効量とを、望ましくない植物又はそれらが生育する場所に施用し、望ましくない植物を防除又はその生育を抑制する方法。
- (a)を5~150g/ha、(b)を200~2000g/ha、(c)を10~150g/ha施用する、請求項4に記載の方法。
- 望ましくない植物が、ヒルガオ科雑草、ナス科雑草、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草である、請求項4に記載の方法。
- 望ましくない植物が、イネ科雑草、アオイ科雑草、キク科雑草又はマメ科雑草である、請求項4に記載の方法。
- 望ましくない植物が、一年生又は多年生のイネ科雑草である、請求項4に記載の方法。
- 望ましくない植物が、トウモロコシ畑における強害雑草である、請求項4に記載の方法。
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EP13796913.5A EP2856873A4 (en) | 2012-05-28 | 2013-05-28 | HERBICIDE COMPOSITION |
MX2014014537A MX363619B (es) | 2012-05-28 | 2013-05-28 | Composicion herbicida. |
US14/401,996 US9420794B2 (en) | 2012-05-28 | 2013-05-28 | Herbicidal composition |
JP2014518682A JPWO2013180129A1 (ja) | 2012-05-28 | 2013-05-28 | 除草組成物 |
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EP (1) | EP2856873A4 (ja) |
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Cited By (2)
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CN106135249A (zh) * | 2015-04-24 | 2016-11-23 | 江苏龙灯化学有限公司 | 一种除草组合物 |
CN109169695A (zh) * | 2018-08-22 | 2019-01-11 | 广西三晶化工科技有限公司 | 一种除草剂组合物及其制备方法和应用 |
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CN111793059B (zh) * | 2020-07-20 | 2021-06-25 | 安徽华星化工有限公司 | 一种采用酸碱析脱色处理获取高含量烟嘧磺隆的精制方法 |
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- 2013-05-28 MX MX2014014537A patent/MX363619B/es unknown
- 2013-05-28 EP EP13796913.5A patent/EP2856873A4/en not_active Withdrawn
- 2013-05-28 WO PCT/JP2013/064768 patent/WO2013180129A1/ja active Application Filing
- 2013-05-28 US US14/401,996 patent/US9420794B2/en active Active
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CN109169695A (zh) * | 2018-08-22 | 2019-01-11 | 广西三晶化工科技有限公司 | 一种除草剂组合物及其制备方法和应用 |
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EP2856873A1 (en) | 2015-04-08 |
MX363619B (es) | 2019-03-28 |
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MX2014014537A (es) | 2015-02-24 |
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