Method for controlling undesired plants and promoting growth of useful plants

Abstract

Provided are a method and a composition for controlling undesired plants and promoting the growth of useful plants. Provided is a method for controlling undesired plants and promoting the growth of useful plants, in which an effective amount of diflufenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from compound group A described in the description are applied to the undesired plants, sites where the undesired plants grow, or sites where the useful plants are cultivated.

Description

Technical Field

[0001] The present invention relates to a method for controlling undesirable plants and promoting the growth of useful plants, wherein an effective amount of tiafenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A are applied to undesirable plants, a site where undesirable plants grow, or a site where useful plants are cultivated. Background Art

[0002] Patent Document 1 discloses a herbicidal composition containing a uracil compound represented by a specific chemical formula and other herbicidally active compounds as active ingredients.

[0003] Non-Patent Document 1 discloses the herbicidal effect of a mixture of fluazifop-butyl and metribuzin on glyphosate-resistant horseweed.

[0004] In Patent Document 2, Table 1-17 discloses a pesticide composition comprising fluazifop-butyl and fluazifop-butyl, wherein the weight ratio of fluazifop-butyl to fluazifop-butyl is 1 / 1,000 or less in terms of fluazifop-butyl / fluazifop-butyl.

[0005] However, these documents do not specifically describe the method of the present invention for controlling undesirable plants and promoting the growth of useful plants, which will be described later.

[0006] Patent Document 3 describes a lawn grass growth promoter comprising a PPO inhibitory compound, a VLCFA synthesis inhibitory compound, or a combination thereof, and a method for promoting the growth of lawn grass. However, Patent Document 3 does not describe fluazifop-butyl.

[0007] In Non-Patent Document 2 and Non-Patent Document 3, although the effects of fluazifop-butyl on the growth inhibition or plant height (heavy weight) of useful plants such as legumes or mint were confirmed when fluazifop-butyl was used alone for treatment, there is no description in any of the documents about the effect of mixing fluazifop-butyl with other herbicide compounds on promoting the growth of useful plants.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: International Publication No. 2013 / 154396

[0011] Patent Document 2: Japanese Patent Application Publication No. 2020-15768

[0012] Patent Document 3: Japanese Patent Application Publication No. 2016-88913

[0013] Non-patent literature

[0014] Non-patent literature 1: Weed Technology, 35, 817-823

[0015] Non-patent document 2: Weed Technology, 35, 991-994

[0016] Non-patent document 3: Weed Technology, 36, 729-732 Summary of the invention

[0017] Problems to be solved by the invention

[0018] At present, a large number of herbicide mixtures and herbicides are used to control various unwanted plants. However, the combination of herbicides may not be able to fully exert the effect of controlling unwanted plants, or the effects of the herbicides may be reduced. Furthermore, there is also a concern that the herbicides may cause phytotoxicity to useful plants and reduce the growth and quality of useful plants.

[0019] The object of the present invention is to provide a method for controlling undesirable plants and promoting the growth of useful plants.

[0020] Means for solving problems

[0021] The present invention provides a method for controlling undesirable plants and promoting the growth of useful plants (hereinafter also referred to as the method of the present invention), wherein an effective amount of fluazifop-butyl (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A are applied to undesirable plants, a place where undesirable plants grow, or a place where useful plants are cultivated.

[0022] [Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds]

[0023] In addition, the present invention provides a pesticide composition (hereinafter also referred to as the composition of the present invention), which contains fluazifop-butyl (a1) and at least one herbicide compound (a2) selected from the above-mentioned compound group A as active ingredients, and the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 by weight.

[0024] Furthermore, the present invention provides a combination comprising fluazifop-butyl (a1) and at least one herbicide compound (a2) selected from the above compound group A as active ingredients, wherein the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 by weight. In the present specification, even when only the composition of the present invention is described, the above combination is also included.

[0025] Effects of the Invention

[0026] The composition of the present invention has an excellent herbicidal effect on unwanted plants that cannot be predicted from the case where (a1) and (a2) are used alone, and has the effect of promoting the growth of useful plants. As a result, the application amount of fluazifop-butyl (a1) and / or at least one herbicide compound (a2) selected from the following compound group A can be reduced, which is useful in practical situations. DETAILED DESCRIPTION

[0027] According to the present invention, by applying an effective amount of fluazifop-butyl (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A to an undesirable plant, a place where an undesirable plant grows, or a place where a useful plant is cultivated, the undesirable plant can be prevented. In addition, by applying an effective amount of the composition of the present invention to an undesirable plant, a place where an undesirable plant grows, or a place where a useful plant is cultivated, the undesirable plant can be prevented.

[0028] According to the present invention, the growth of useful plants can be promoted by applying an effective amount of fluazifop-butyl (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A to undesirable plants, places where undesirable plants grow, or places where useful plants are cultivated. In addition, the growth of useful plants can be promoted by applying an effective amount of the composition of the present invention to undesirable plants, places where undesirable plants grow, or places where useful plants are cultivated.

[0029] When promoting the growth of useful plants, fluazifop-butyl (a1), the above-mentioned herbicide compound (a2) or the composition of the present invention can be applied in effective amounts to undesirable plants, places where undesirable plants grow, or places where useful plants are cultivated before starting the cultivation of useful plants, for example, before sowing seeds of useful plants or before transplanting seedlings of useful plants. After the application, the growth of the useful plants whose cultivation has started is promoted by sowing seeds or transplanting seedlings.

[0030] The composition of the present invention contains fluazifop-butyl (a1) and at least one herbicide compound (a2) selected from the following compound group A as active ingredients.

[0031] Compound group A is a group consisting of S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate and dimethenamid-P as herbicide compounds (a2). Among them, preferably S-metolachlor, metribuzin, pyroxasulfone or dimethenamid, more preferably S-metolachlor or metribuzin, or more preferably S-metolachlor, pyroxasulfone or dimethenamid. Further preferably S-metolachlor or pyroxasulfone, or further more preferably S-metolachlor or dimethenamid, particularly preferably S-metolachlor.

[0032] Fluthiosulfuron (a1) and the herbicide compound (a2) may exist in the form of salts, alkyl esters, hydrates, different crystal forms, various structural isomers, etc. In such cases, these are of course also included in the scope of the present invention.

[0033] The mixing ratio of fluazifop-butyl (a1) and the herbicide compound (a2) in the present invention may vary depending on various conditions such as the formulation form of the mixed active ingredients, meteorological conditions, the type of the undesirable plants to be controlled, and the growth conditions, and cannot be generally specified, but is usually 1:0.8 to 1:1000, preferably 1:1.2 to 1:200, in terms of the weight ratio of (a1): (a2). When the herbicide compound (a2) is S-isopropylamine, the weight ratio of (a1): (a2) is more preferably 1:1.2 to 1:180, further preferably 1:1.2 to 1:150, and particularly preferably 1:1.2 to 1:120. When the herbicide compound (a2) is metribuzin, the weight ratio of (a1): (a2) is more preferably 1:1.2 to 1:190, further preferably 1:1.2 to 1:180, further more preferably 1:1.2 to 1:160, particularly preferably 1:1.5 to 1:176, further particularly preferably 1:1.5 to 1:130, and further particularly preferably 1:1.5 to 1:88. When the herbicide compound (a2) is pyraclostrobin, the weight ratio of (a1): (a2) is more preferably 1:1.2 to 1:160, further preferably 1:1.2 to 1:120, further more preferably 1:1.2 to 1:80, further preferably 1:1.2 to 1:70, further particularly preferably 1:1.2 to 1:60, and further particularly preferably 1:1.2 to 1:40. When the herbicide compound (a2) is pyralid, the weight ratio of (a1): (a2) is more preferably 1:7 to 1:200, more preferably 1:8 to 1:200, and particularly preferably 1:12 to 1:200. When the herbicide compound (a2) is pethoxamid, the weight ratio of (a1): (a2) is more preferably 1:8 to 1:200, more preferably 1:12 to 1:160, and particularly preferably 1:15 to 1:120. When the herbicide compound (a2) is pyralid-P, the weight ratio of (a1): (a2) is more preferably 1:6 to 1:200, more preferably 1:8 to 1:160, and particularly preferably 1:9.6 to 1:120.

[0034] The appropriate amount of fluazifop-butyl (a1) and the herbicide compound (a2) used in the present invention may vary depending on various conditions such as the formulation form of the mixed active ingredients, meteorological conditions, the type of the undesirable plants to be controlled, and the growth conditions, and cannot be generally specified, but the appropriate amount of (a1) used is usually 0.01 to 400 g, preferably 0.05 to 300 g, more preferably 0.1 to 200 g, further preferably 0.5 to 100 g, and particularly preferably 1 to 100 g per hectare, and the appropriate amount of (a2) used is usually 0.1 to 5000 g, and preferably 1 to 4000 g. When the herbicide compound (a2) is S-isopropylamine, the appropriate amount of its use is more preferably 10 to 3000 g, further preferably 25 to 2000 g, and particularly preferably 250 to 1500 g per hectare. When the herbicide compound (a2) is metribuzin, the application amount is more preferably 10 to 3000 g, more preferably 25 to 2000 g, and particularly preferably 50 to 1500 g per hectare. When the herbicide compound (a2) is pyraclostrobin, the application amount is more preferably 10 to 1000 g, more preferably 25 to 500 g, and particularly preferably 50 to 300 g per hectare. When the herbicide compound (a2) is pyraclostrobin, the application amount is more preferably 10 to 3700 g, more preferably 25 to 3300 g, and particularly preferably 500 to 3000 g per hectare. When the herbicide compound (a2) is pethoxamid, the application amount is more preferably 10 to 3000 g, more preferably 25 to 3000 g, and particularly preferably 500 to 2000 g per hectare. When the herbicide compound (a2) is fenacet-P, the appropriate amount to be applied is more preferably 10 to 3000 g, further preferably 25 to 3000 g, and particularly preferably 300 to 2000 g per hectare.

[0035] The composition of the present invention is applied to undesirable plants, places where undesirable plants grow, or places where useful plants are cultivated, and shows excellent control effects on undesirable plants, and promotes the growth of useful plants. The above-mentioned places relate to various aspects of non-agricultural land such as parking lots, cemeteries, homesteads, levees, gardens, parks, forests, roads, farm roads, grounds, factory lands, dry fields, orchards, mulberry gardens, lawns, etc. Among them, it is desired to be applied to agricultural land or places where useful plants will be cultivated in the future. The above-mentioned cultivation refers to a series of actions starting from sowing seeds of useful plants, transplanting seeds, or transplanting vegetative propagation organs of useful plants. It should be noted that the above-mentioned seeds refer to seeds or seedlings, etc.

[0036] The application method of the composition of the present invention can be appropriately selected from soil treatment, stem and leaf treatment, ponding treatment, etc. The application period of the composition of the present invention can be appropriately selected from the range from after harvesting useful plants to before next sowing, and from after sowing useful plants to before germination.

[0037] Generally, in the case of soil treatment, the application amount of (a1) is preferably 0.01 to 400 g per hectare, more preferably 0.05 to 300 g, and the application amount of (a2) is preferably 0.1 to 5000 g per hectare, more preferably 1 to 4000 g. Generally, in the case of stem and leaf treatment, the application amount of (a1) is preferably 0.01 to 400 g per hectare, more preferably 0.05 to 300 g, and the application amount of (a2) is preferably 0.1 to 5000 g per hectare, more preferably 1 to 4000 g. Generally, in the case of ponding treatment, the application amount of (a1) is preferably 0.01 to 400 g per hectare, more preferably 0.05 to 300 g, and the application amount of (a2) is preferably 0.1 to 5000 g per hectare, more preferably 1 to 4000 g.

[0038] The soil treatment is a method of applying the composition of the present invention to the soil before the useful plants or the unwanted plants germinate. By treating the soil with the composition of the present invention, a treatment layer is formed on the soil surface, and the effect of the composition of the present invention is exerted on each plant.

[0039] The above-mentioned stem and leaf treatment refers to a method in which the composition of the present invention is applied to the stems and leaves of various plants after the useful plants or the undesired plants have sprouted. By subjecting the composition of the present invention to stem and leaf treatment, the agent is absorbed or contacted from the stem and leaves, and the effect of the composition of the present invention is exerted on each plant.

[0040] The above-mentioned ponding treatment is a method of applying the composition of the present invention to a paddy field where useful plants are cultivated or a paddy field where unwanted plants are ponded. By subjecting the composition of the present invention to ponding treatment, the effect of the composition of the present invention is exerted on each plant.

[0041] In each of the above treatments, the composition of the present invention is generally diluted with water or the like to a prescribed concentration, and is spread on undesirable plants, places where undesirable plants grow, or places where useful plants are cultivated using a sprayer. In addition, flying devices such as unmanned helicopters and drones, power spreaders, or boom sprayers may also be used.

[0042] The amount of the composition of the present invention used in each of the above-mentioned treatments can be adapted to the above-mentioned mixing ratio or application amount of fluazifop-butyl (a1) and the herbicide compound (a2).

[0043] The above-mentioned "promotion of growth of useful plants (hereinafter sometimes described as 'growth promotion')" of the present invention refers to an increase in plant weight, an increase in leaf area, an increase in the number of healthy leaves, an increase in plant height, an increase in root growth or root density, an increase in the number or weight of seeds or fruits, an increase in the number of flowers or fruits. The composition of the present invention is particularly suitable for increasing plant weight and / or increasing seed weight.

[0044] The above growth promotion can be quantified to show the effect by the following method.

[0045] (1) Plant weight

[0046] The plant weight refers to the fresh weight obtained by cutting out the above-ground part of each useful plant and measuring the weight, or the dry weight obtained by drying the cut sample and measuring the weight.

[0047] (2) Leaf area

[0048] The leaf area refers to the total area of ​​leaves collected from various useful plants and calculated by leaf area measurement.

[0049] (3) Number of healthy leaves

[0050] The number of healthy leaves is determined by measuring the number of healthy leaves of each useful plant.

[0051] (4) Plant height

[0052] The plant height is determined by placing the above-ground part of each useful plant upright and measuring the height from the highest position to the ground surface.

[0053] (5) Root growth or root density

[0054] Root growth or root density refers to the fresh weight obtained by digging up the roots of each useful plant and measuring the weight, or the dry weight obtained by drying the dug sample and measuring the weight.

[0055] (6) Number or weight of seeds or fruits

[0056] The number or weight of seeds or fruits refers to collecting seeds or fruits of each useful plant and counting their number to determine the number, or measuring their weight to determine the total weight or average value.

[0057] (7) Number of flowers or fruits

[0058] The number of flowers or fruits is determined by measuring the number of flowers or fruits of each useful plant.

[0059] The compositions of the present invention can be used to control or inhibit the growth of various undesirable plants, such as barnyardgrass (Echinochloa crus-galli, Echinochloa oryzicola), southern crabgrass (Digitaria ciliaris, Digitaria adscendens), large crabgrass (Digitaria sanguinalis), smooth crabgrass (Digitaria ischaemum), East Indian crabgrass (Digitaria microbachne), Jamaican crabgrass (Digitaria horizontalis), green foxtail (Setaria viridis), giant foxtail (Setaria faberi), yellow foxtail (Setaria lutescens), goosegrass (Eleusineindica), wild oat (Avena fatua), johnsongrass (Sorghum halepense), quackgrass (Agropyron repens), hairy signalgrass (Urochloavillosa), alexandergrass (Brachiaria plantaginea), guineagrass (Panicummaximum), paragrass (Panicum purpurascens), Chinese sprangletop (Leptochloa chinensis), red sprangletop (Leptochloa panicea), annual bluegrass (Poa annua), shortawn foxtail (Alopecurusaequalis)), blackgrass (Alopecurus myosuroides)), cholorado bluestem (Agropyrontsukushiense), broadleaf signalgrass (Brachiariaplatyphylla), southern sandbur (Cenchrus echinatus), Italian ryegrass (Lolium multiflorum), bermudagrass (Cynodon dactylon), violet crabgrass (Digitaria violascens), knotgrass (Paspalumdistichum), little quakinggrass (Briza minor), sweet vernalgrass (Anthoxanthum odoratum), fall panicum (Panicum dichotomiflorum), shattercane (Sorghum bicolor), American Grass weeds (Poaceae) such as sloughgrass (Beckmannia syzigachne);

[0060] Rice flatsedge (Cyperus iria), purple nutsedge (Cyperus rotundus), yellow nutsedge (Cyperus esculentus), tidal-marsh flatsedge (Cyperus serotinus), smallflower umbrella sedge (Cyperus difformis), needle spikerush (Eleocharis acicularis), waterchestnut (Eleocharis kuroguwai), green kyllinga (Kyllingabrevifolia var.leiolepis), Schoenoplectus nipponicus, cosmopolitan bulrush (Bolboschoenus koshevnikovii), amur cyperus (Cyperus microiria) and rock bulrush (Schoenoplectus juncoides);

[0061] Weeds in the Alismataceae family such as Japanese ribbon waparo (Sagittaria pygmaea), arrow-head (Sagittaria trifolia), and channelled waterplantain (Alismacanaliculatum);

[0062] Weeds of the Pontederiaceae family such as heartshape false pickerelweed (Monochoria vaginalis) and korsakow monochoria (Monochoria korsakowii);

[0063] Weeds in the Lythraceae family, such as Indian toothcup (Rotala indica) and jerry-jerry (Ammannia multiflora);

[0064] Weeds in the Elatinaceae family such as long stem water-wort (Elatine triandra);

[0065] Weeds in the Malvaceae family such as velvetleaf (Abutilon theophrasti), prickly sida (Sidaspinosa), volunteer cotton (Gossypium hirsutum), common mallow (Malva neglecta), little mallow (Malva parviflora), and venice mallow (Hibiscus trionum);

[0066] Common cocklebur (Xanthium strumarium), common ragweed (Ambrosia artemisiifolia), thistle (Breea setosa), hairy galinsoga (Galinsoga ciliata), wild chamomile (Matricaria chamomilla), scentless chamomile (Tripleurospermum maritimum), mayweed chamomile (Anthemis cotula), hairy fleabane (Conyza bonariensis), tall fleabane (Conyza sumatrensis), tall goldenrod (Solidagoaltissima), prickly lettuce (Lactuca serriola), philadelphia fleabane (Erigeron philadelphicus), annual fleabane (Erigeron annuus), common groundsel (Senecio vulgaris), giant ragweed (Ambrosia trifida), horseweed (Conyza canadensis), dandelion (Taraxacum officinale), devils beggarticks (Bidens frondosa), beggar ticks (Bidens biternata), hairy beggarticks (Bidens pilosa), narrow-leaf hawksbeard (Crepis tectorum), santa maria feverfew (Parthenium hysterophorus), spiny sowthistle (Sonchus asper), annual sowthistle (Sonchusoleraceus), volunteer common sunflower (Helianthus annuus), Canada thistle (Cirsium arvense), bristly starbur (Acanthospermum hispidum);

[0067] Weeds in the Solanaceae family such as black nightshade (Solanum nigrum), jimsonweed (Daturastramonium), cutleaf groundcherry (Physalis angulate var. angulata), horseenettle (Solanum carolinense), cut-leaf nightshade (Solanum triflorum), eastern black nightshade (Solanum ptycanthum), and hairy nightshade (Solanum sarrachoides);

[0068] Slender amaranth (Amaranthus viridis), redroot pigweed (Amaranthus retroflexus), livid amaranth (Amaranthus blitum), Japanese chaff-flower (Achyranthes bidentata var. japonica), palmer amaranth (Amaranthus palmeri), kochia (Bassia scoparia), smoothie amaranth (Amaranthus hybridus), slender amaranth (Amaranthus viridis), powell's amaranth (Amaranthus powellii), spiny amaranth (Amaranthus spinosus), clammy Weeds in the Amaranthaceae family such as goosefoot (Dysphania pumilio), common lambsquarters (Chenopodium album), fat hen (Chenopodium album var. centrorubrum), narrow-leaf goosefoot (Chenopodium pratericola), procumbent pigweed (Amaranthus blitoides), Russian thistle (Salsola sp.), and waterhemp (Amaranthus tuberculatus);

[0069] Pale smartweed (Polygonum lapathifolium), ladysthumb (Polygonum persicaria), wild buckwheat (Polygonum convolvulus), knotweed (Polygonum aviculare), pale smartweed (Persicaria lapathifoliavar. lapathifolia), Japanese knotweed (Fallopia japonica), oriental lady's thumb (Persicaria longiseta), sheep sorrel (Rumex acetosellasubsp. pyrenaicus), thunberg knotweed (Persicaria thunbergii), Nepalese smartweed (Persicaria nepalensis), Japanese Weeds in the Polygonaceae family, such as dock (Rumex japonicus) and Pennsylvania smartweed (Persicaria pensylvanica);

[0070] flexuous bittercress (Cardamine flexuosa), shepherd's-purse (Capsella bursa-pastoris), Indian mustard (Brassica juncea), variableleaf yellowcress (Rorippa indica), marsh yellowcress (Rorippa palustris), volunteer canola (Brassica spp.), smallseed falseflax (Camelina microcarpa), flixweed (Descurainia sophia), black mustard (Brassica nigra), tumble mustard (Sisymbriumaltissimum), wild mustard (Sinapis arvensis), field pennycress (Thlaspi Cruciferous weeds (Brassicaceae) such as water mustard (London rocket (Sisymbrium irio)), and pinnatetansymustard (Descurainia pinnata);

[0071] Weeds of the Convolvulaceae family such as tall morningglory (Ipomoea purpurea), field bindweed (Calystegia arvensis), ivyleaf morningglory (Ipomoea hederacea), wholeleaf morningglory (Ipomoea hederacea var. integriuscula), palmleaf morningglory (Ipomoea wrightii), and pitted morningglory (Ipomoea lacunosa);

[0072] Weeds in the Portulacaceae family, such as common purslane (Portulaca oleracea);

[0073] Sicklepod (Cassia obtusifolia), red clover (Trifoliumpratense), narrowleaf vetch (Vicia sativa subsp. nigravar. segetalis), white clover (Trifolium repens), tiny vetch (Vicia hirsuta), volunteer alfalfa (Medicago sativa), blackmedic (Medicago lupulina), common lespedeza (Kummerowia striata), suckling clover (Trifolium dubium), bird's foot trefoil (Lotus corniculatus var. japonicus), Florida beggarweed (Desmodium tortuosum), hemp Leguminous weeds (Fabaceae) such as sesbania (Sesbania herbacea);

[0074] Weeds in the Caryophyllaceae family such as common chickweed (Stellaria media), water chickweed (Stellaria aquatica), sticky chickweed (Cerastium glomeratum), Japanese pearlwort (Sagina japonica), bog chickweed, bog starwort (Stellaria uliginosa var. undulata), pot marigold (Calendula officinalis), and cowcockle (Vaccaria hispanica);

[0075] Weeds in the Lamiaceae family such as henbit (Lamium amplexicaule) and purple dead nettle (Lamium purpureum);

[0076] Weeds in the Rubiaceae family such as catchweed (Galium spurium), catchweed bedstraw (Galiumaparine), and Florida pusley (Richardia scabra);

[0077] Euphorbiaceae weeds such as threeseeded copperleaf (Acalypha australis), spotted spurge (Euphorbia maculata), texasweed (Caperonia palustris), and Virginia copperleaf (Acalypha virginica);

[0078] Commelinaceae weeds such as Asiatic dayflower (Commelina communis);

[0079] Weeds of the Linderniaceae family such as common false pimpernel (Lindernia procumbens), false pimpernel (Lindernia dubia subsp. major), false pimpernel (Lindernia dubia subsp. dubia), and narrow-leaved pimpernel (Lindernia micrantha);

[0080] Weeds of the Plantaginaceae family such as dopatrium (Dopatrium junceum), Gratiola japonica, Asiatic plantain (Plantago asiatica), Persian speedwell (Veronica persica), and corn speedwell (Veronica arvensis);

[0081] Weeds in the Molluginaceae family such as Carpetweed (Mollugo verticillata);

[0082] Weeds in the Onagraceae family, such as cutleaf evening primrose (Oenothera laciniata) and American willowherb (Epilobium ciliatum);

[0083] Weeds in the Geraniaceae family such as redstem filaree (Erodium cicutarium);

[0084] Weeds in the Apiaceae family, such as poison-hemlock (Conium maculatum);

[0085] Weeds in the Urticaceae family, such as burning nettle (Urtica urens);

[0086] Weeds in the Zygophyllaceae family such as puncturevine (Tribulus terrestris); and

[0087] Weeds of the Cucurbitaceae family such as burcucumber (Sicyos angulatus) etc.

[0088] The composition of the present invention can be suitably used for controlling or inhibiting the growth of undesirable plants, such as barnyardgrass (Echinochloa crus-galli, Echinochloa oryzicola), southern crabgrass (Digitaria ciliaris, Digitaria adscendens), large carbgrass (Digitaria sanguinalis), smooth crabgrass (Digitariaischaemum), East Indian crabgrass (Digitaria microbachne), Jamaican crabgrass (Digitaria horizontalis), giant foxtail (Setariafaberi), goosegrass (Eleusine indica), wild oat (Avena fatua), Chinese sprangletop (Leptochloa chinensis), annual bluegrass (Poaannua), shortawn foxtail (Alopecurus aequalis), blackgrass (Alopecurus myosuroides), Italian ryegrass (Lolium multiflorum), violet crabgrass (Digitaria violascens), fall panicum (Panicum dichotomiflorum), and American sloughgrass (Beckmannia syzigachne);

[0089] Weeds of the Cyperaceae family such as purple nutsedge (Cyperus rotundus), yellow nutsedge (Cyperus esculentus), and green kyllinga (Kyllinga brevifolia var. leiolepis);

[0090] Weeds in the Malvaceae family (Malvaceae), such as velvetleaf (Abutilon theophrasti);

[0091] Weeds in the Asteraceae family such as common ragweed (Ambrosia artemisiifolia), hairy galinsoga (Galinsoga ciliata), tall fleabane (Conyza sumatrensis), philadelphia fleabane (Erigeron philadelphicus), and dandelion (Taraxacum officinale);

[0092] Weeds in the Solanaceae family, such as black nightshade (Solanum nigrum);

[0093] Redroot pigweed (Amaranthus retroflexus), powell's amaranth (Amaranthus powellii), livid amaranth (Amaranthus blitum), palmer amaranth (Amaranthus palmeri), smooth pigweed (Amaranthus hybridus), slender amaranth (Amaranthus viridis), spiny amaranth (Amaranthus spinosus), kochia (Bassia scoparia), common lambsquarters (Chenopodium album), fat hen (Chenopodium album var. centrorubrum), waterhemp (Amaranthus tuberculatus)) in the Amaranthaceae family;

[0094] Weeds in the Polygonaceae family such as pale smartweed (Polygonum lapathifolium), palesmartweed (Persicaria lapathifolia var. lapathifolia), Oriental lady'sthumb (Persicaria longiseta), and Nepalese smartweed (Persicarianepalensis);

[0095] Weeds in the Brassicaceae family such as flexuous bittercress (Cardamine flexuosa), shepherd's-purse (Capsella bursa-pastoris), and marsh yellowcress (Rorippapalustris);

[0096] Weeds in the Convolvulaceae family such as tall morningglory (Ipomoea purpurea), ivyleaf morningglory (Ipomoea hederacea), field bindweed (Convolvulus sarvensis), and pitted morningglory (Ipomoea lacunosa);

[0097] Weeds in the Portulacaceae family, such as common purslane (Portulaca oleracea);

[0098] Leguminous weeds (Fabaceae) such as narrowleaf vetch (Vicia sativa subsp. nigra var. segetalis) and common lespedeza (Kummerowia striata);

[0099] Weeds in the Caryophyllaceae family such as common chickweed (Stellaria media) and sticky chickweed (Cerastium glomeratum);

[0100] Weeds in the Lamiaceae family such as henbit (Lamium amplexicaule);

[0101] Weeds in the Rubiaceae family, such as catchweed (Galium spurium);

[0102] Commelinaceae weeds such as Asiatic dayflower (Commelina communis); and Plantaginaceae weeds such as persian speedwell (Veronica persica); etc.

[0103] The composition of the present invention is useful for controlling or inhibiting the growth of undesirable plants such as Poaceae, Cyperaceae, Malvaceae, Asteraceae, Solanaceae, Amaranthaceae, Polygonaceae, Brassicaceae, Convolvulaceae, Fabaceae, Caryophyllaceae, Lamiaceae, Rubiaceae, Commelinaceae and Plantaginaceae.

[0104] The composition of the present invention is further useful for controlling or inhibiting the growth of undesirable plants such as weeds in the Poaceae family, weeds in the Asteraceae family, and weeds in the Amaranthaceae family.

[0105] The composition of the present invention is particularly useful for controlling or inhibiting the growth of undesirable plants such as Italian ryegrass (Lolium multiflorum), goosegrass (Eleusine indica), waterhemp (Amaranthus tuberculatus) and horseweed (Conyza canadensis).

[0106] The composition of the present invention is used for controlling the above-mentioned undesirable plants or inhibiting their growth in the cultivation of useful plants, such as lawn grass, soybean (Glycine max), alfalfa (Medicago sativa), chickpea (Cicer arietinum), pea (Pisum sativum), lentil (Lens culinaris), cotton (Gossypium spp.), wheat (Triticum aestivum), rice (Oryza sativa), barley (Hordeum vulgare), rye (Secale cereale), oat (Avena sativa), corn (Zea mays), sorghum (Sorghum spp.), Chinese colza (Brassica rapa var.nippo-oleifera), rapeseed (canola (Brassica napus), sunflower (Helianthus annuus), sugar beet (sugar beet (Beta vulgaris ssp.vulgaris, Beta vulgaris var.saccharifera, Beta vulgaris var.hortensis), sugarcane (Saccharum officinarum), peanut (Arachis hypogaea), flax (Linum usitatissimum), tobacco (tabaco (Nicotiana tabacum)) and coffee (coffea arabica)). Therefore, the composition of the present invention is preferably used in a place where the above-mentioned useful plants grow or a place where the above-mentioned useful plants are cultivated.

[0107] The composition of the present invention is particularly used in places where useful plants such as lawn grass, soybeans, cotton, wheat, rice, corn, turnips, rapeseed, sunflowers, sugar beets, sugar cane, peanuts, flax, tobacco or coffee grow or in places where the above useful plants are cultivated. Among them, the composition of the present invention is preferably used in places where useful plants such as lawn grass, soybeans, wheat, rice or corn grow or in places where the above useful plants are cultivated. Furthermore, the composition of the present invention is more preferably used in places where useful plants such as soybeans, wheat, rice or corn grow or in places where the above useful crops are cultivated.

[0108] Useful plants include plants that have been endowed with tolerance to HPPD inhibitors such as isoxazolidinone, ALS inhibitors such as imazapyr and thifensulfuron-methyl, EPSP synthase inhibitors such as glyphosate, glutamine synthetase inhibitors such as glufosinate, acetyl CoA carboxylase inhibitors such as sethoxydim, herbicides such as bromoxynil, dicamba, and 2,4-D by classical breeding methods. Specifically, corn and rapeseed varieties resistant to imidazolinone herbicides (trade name: Clearfield); STS soybeans resistant to sulfonylurea ALS-inhibiting herbicides; and the like.

[0109] Useful plants also include transformed plants produced by gene recombination technology. Examples of transformed plants include transformed plants with herbicide tolerance, transformed plants with pest resistance, transformed plants related to plant components, and transformed plants with plant pathogen resistance. Furthermore, useful plants also include stacked varieties combining these multiple useful traits.

[0110] The composition of the present invention can be effectively used in the case of selectively controlling or inhibiting the growth of undesirable plants in the cultivation of various transformed plants of the above-mentioned useful plants (for example, soybean, cotton, rapeseed, corn, etc.).

[0111] The transformed plants for herbicide tolerance include glyphosate-tolerant corn, soybean, cotton, rapeseed, and sugar beet, glufosinate-tolerant corn, soybean, cotton, and rapeseed, and bromoxynil-tolerant cotton.

[0112] Examples of pest-resistant transformed plants include plants that can synthesize toxins known to be synthesized by Bacillus, etc. The toxins synthesized by these transformed plants impart resistance to beetle pests, hemipteran pests, dipteran pests, lepidopteran pests, and nematodes.

[0113] Examples of such toxins include insecticidal proteins from Bacillus cereus and Bacillus japonicus; delta-endotoxins such as Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab, Cry3A, Cry3Bb1 or Cry9C from Bacillus thuringiensis; insecticidal proteins such as VIP1, VIP2, VIP3 or VIP3A; insecticidal proteins from nematodes; toxins produced by animals such as scorpion toxins, spider toxins, bee toxins or insect-specific neurotoxins; filamentous fungal toxins; plant lectins; lectins; trypsin inhibitors, serine protease inhibitors , potato glycoprotein, cysteine ​​protease inhibitors, papain inhibitors and other protease inhibitors; ricin, corn-RIP, abrin, luffin, saponin, bryophyte and other ribosome inactivating proteins (RIP); steroid metabolic enzymes such as 3-hydroxysteroid oxidase, ecdysteroid-UDP-glucosyltransferase, cholesterol oxidase; ecdysone inhibitors; HMG-CoA reductase; ion channel inhibitors such as sodium channel and calcium channel inhibitors; juvenile hormone esterase; diuretic hormone receptor; stilbene synthase; bibenzyl synthase; chitinase; glucanase; etc. In addition, such toxins also include δ-endotoxin proteins such as Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab, Cry3A, Cry3Bb1, Cry9C, Cry34Ab or Cry35Ab, mixed toxins of insecticidal proteins such as VIP1, VIP2, VIP3 or VIP3A, toxins with missing parts, and modified toxins.

[0114] Examples of transformed plants related to plant components include plants imparted with traits such as modified oil and grain components and enhanced amino acid content.

[0115] Examples of plants transformed with resistance to plant pathogens include plants imparted with the ability to produce a selectively acting antipathogenic substance.

[0116] Specific transformed plants are not particularly limited, but examples thereof include corn, soybean, cotton, rapeseed and sugar beet varieties resistant to glyphosate (trade name: RoundupReady, Agrisure, Gly-Tol); corn, soybean, cotton and rapeseed varieties resistant to glufosinate (trade name: LibertyLink); cotton varieties resistant to bromoxynil (trade name: BXN); corn and soybean varieties resistant to both glyphosate and ALS inhibitors (trade name: Optimum, GAT); varieties resistant to imidazolinone compounds (trade name: IMI); corn varieties expressing Cry1Ab toxin (trade name: YieldGard); corn varieties expressing Cry3Bb1 toxin (trade name: YieldGard Rootworm); corn varieties expressing Cry1Ab and Cry3Bb1 toxins (trade name: YieldGard Plus); a corn variety expressing Cry1Fa2 toxin and phosphinothricin N-acetyltransferase (PAT) for conferring tolerance to glufosinate (trade name: Herculex I); a cotton variety expressing Cry1Ac toxin (trade name: NuCOTN33B, Bollgard I); a cotton variety expressing Cry1Ac and Cry2Ab toxins (trade name: Bollgard II); a cotton variety expressing VIP toxin (trade name: VIPCOT); a corn variety (Herculex I) expressing Cry1Fa2 toxin and phosphinothricin N-acetyltransferase (PAT) for conferring tolerance to glufosinate; a variety with GA21 glyphosate tolerance trait (trade name: NatureGard Agrisure GT Advantage); a variety with Bt11 corn borer (CB) trait (trade name: Agrisure CB Advantage); a low linolenic acid soybean with reduced linolenic acid content (trade name: VISTIVE); a corn variety with increased lysine or oil content; etc.

[0117] As shown in the examples described below, the composition of the present invention can exert a higher effect by combining fluazifop-butyl (a1) and the herbicide compound (a2), compared with the case where they are used separately. Since the higher effect is exerted for a long time, it is very useful in practical situations such as when there is a concern that the effect of the pesticide composition will be reduced due to rainfall, temperature, etc. after application.

[0118] In the present invention, in the composition of the present invention, other herbicidal compounds can be further mixed and used as needed. The other herbicidal compounds can be appropriately selected from various known herbicidal compounds in consideration of the applicable occasions of the composition of the present invention, the types of undesirable plants as the control object, the growth conditions, etc. In addition, the composition of the present invention can be mixed or used in combination with fungicides, antibiotics, plant hormones, pesticides, fertilizers, pesticides, etc., in which case it sometimes shows a more excellent effect and action. As other herbicidal compounds, for example, the following substances (common names) can be cited, and one or more of them can be appropriately selected. Among them, the other herbicidal compounds further mixed are selected from herbicidal compounds different from the herbicide compound (a2). That is, for example, in the case where the herbicide compound (a2) is metribuzin, the other herbicidal compounds further mixed are selected from compounds other than metribuzin.

[0119] (1) Such as 2,4-D, 2,4-D-butotyl, 2,4-D-butyl, 2,4-D-dimethylammonium, 2,4-D-diolamine, 2,4-D-ethyl, 2,4-D-2-ethylhexyl, 2,4-D-isobutyl, 2,4-D-isoctyl, 2,4-D-isopropyl, 2,4-D-isopropylamine isopropylammonium), 2,4-D sodium salt (2,4-D-sodium), 2,4-D isopropanolamine salt (2,4-D-isopropanolammonium), 2,4-D triethanolamine salt (2,4-D-trolamine), 2,4-DB, 2,4-DB butyl ester (2,4-DB-butyl), 2,4-DB dimethylammonium salt (2,4-DB-dimethylammonium), 2,4-DB isooctyl ester (2,4-DB-isoctyl), 2,4-DB potassium salt (2,4-DB-potassium), 2,4-DB sodium salt (2,4-DB-sodium), 2,4-D choline salt (2,4-D choline salt), 2,4-dichlorprop, dichlorprop-butotyl, dichlorprop-dimethylammonium, dichlorprop-isoctyl, dichlorprop-potassium, dichlorprop-P, dichlorprop-P-d imethylammonium), dichlorprop-P-potassium, dichlorprop-P-sodium, MCPA, MCPA-butotyl, MCPA-dimethylammonium, MCPA-2-ethylhexyl, MCPA-potassium, MCPA-sodium,MCPA ethyl thioester (MCPA-thioethyl), MCPB, MCPB ethyl ester (MCPB-ethyl), MCPB sodium salt (MCPB-sodium), 2-methyl-4-chloropropionic acid (mecoprop), 2-methyl-4-chloropropionic acid butoxyethyl ester (mecoprop-butotyl), 2-methyl-4-chloropropionic acid sodium salt (mecoprop-sodium), 2-methyl-4-chloropropionic acid (mecoprop-P), 2-methyl-4-chloropropionic acid butoxyethyl ester (mecoprop-P-butotyl), 2-methyl-4-chloropropionic acid dimethylamine salt (mecoprop-P-dimethylammonium), 2-methyl-4-chloropropionic acid- 2-ethylhexyl (mecoprop-P-2-ethylhexyl), mecoprop-P-potassium, naproanilide, clomeprop, phenoxy compounds such as HIA-1; 2,3,6-TBA, dicamba, dicamba-butotyl, dicamba-diglycolamine, dicamba-dimethylammonium, dicamba-diethanolamine ba-diolamine), dicamba-isopropylammonium, dicamba-potassium, dicamba-sodium, picloram, picloram-dimethylammonium, picloram-isoctyl, picloram-potassium, picloram-triisopropanolammon ium), picloram-triisopropylammonium, picloram-trolamine, triclopyr, triclopyr-butotyl, triclopyr-triethylammonium, clopyralid, clopyralid-olamine, clopyralid-potassium,Aromatic carboxylic acid compounds such as clopyralid-triisopropanolammonium, aminopyralid, aminocyclopyrachlor, halauxifen, halauxifen-methyl, indolauxipyr, and DAS-534; in addition, naptalam, naptalam-sodium, benazolin, benazolin-ethyl, quinclorac, chloromethanequine Compounds such as quinmerac, diflufenzopyr, diflufenzopyr-sodium, fluroxypyr, fluroxypyr-2-butoxy-1-methylethyl, fluroxypyr-meptyl, chlorflurenol, chlorflurenol-methyl, clacyfos, and fluchloraminopyr are believed to exhibit herbicidal effects by disrupting the hormone action of plants.

[0120] (2) Chlorotoluron, diuron, fluometuron, linuron, isoproturon, metobenzuron, tebuthiuron, dimefuron, isouron, karbutilate, methabenzthiazuron, metoxuron, metoburomuron, monolinuron, Urea compounds such as neburon and siduron; terbumeton, trietazine, simazine, atrazine, atraton, simetryn, prometryn, dimethametryn, terbuthylazine, cyanazine, ametryn, cybutryne, terbutryn, prometryn, triazine compounds such as oxazinone, metribuzin, and metamitron; triazine compounds such as bromacil, bromacil-lithium, lenacil, and terbacil; uracil compounds such as propanil, cypromid, tetflupyrolimet, pe anilide compounds such as betaine, ...In addition, compounds such as pyridate, bentazone, bentazone-sodium, amicarbazone, methazole, and chloridazon are believed to exhibit herbicidal effects by inhibiting plant photosynthesis.

[0121] (3) Quaternary ammonium salt compounds such as paraquat and diquat are believed to exhibit rapid herbicidal effects by converting themselves into free radicals in plants and generating active oxygen.

[0122] (4) Nitrofen, chlomethoxyfen, bifenox, acifluorfen, acifluorfen-sodium, fomesafen, fomesafen-sodium, oxyfluorfen, lactofen, aclonifen, ethoxyfen-ethyl, Diphenyl ether compounds such as fluoroglycofen-ethyl and fluoroglycofen; cyclic imide compounds such as chlorphthalim, flumioxazin, flumiclorac, flumiclorac-pentyl, cinidon-ethyl, fluthiacet-methyl, and EK-5385; in addition, oxadiazon (oxadiargyl), oxadiazon, sulfentrazone, carfentrazone-ethyl, thidiazimin, pentoxazone, azafenidin, pyraflufen-ethyl, benzfendizone, butafenacil, saflufenacil, epirifenasil (e The present invention relates to compounds such as pyrifenacil, fluazolate, profluazol, flufenpyr-ethyl, bencarbazone, pyraclonil, cyclopyranil, trifludimoxazin, flufenoximacil, etc., which are believed to exhibit herbicidal effects by inhibiting the biosynthesis of chlorophyll in plants and causing abnormal accumulation of photosensitized peroxides in plants.

[0123] (5) Pyridazinone compounds such as norflurazon and metflurazon; pyrazole compounds such as pyrazolynate, pyrazoxyfen, benzofenap, topramezone, cypyrafluone, bipyrazone, tolpyralate, and pyraquinate; in addition, amitrole, fluridone, flurtamone, diflufenican, methoxyphenone, clomazone, broclozone, bixlozone, mesotrione, and chlorpyrifos. The present invention relates to a compound which is believed to inhibit the biosynthesis of pigments of plants such as carotenoids and exhibit a herbicidal effect characterized by a bleaching effect, such as oxadiazole, oxadiazole, tembotrione, tefuryltrione, fenquinotrione, cyclopyrimorate, difenzoquat, difenzoquat-methylsulfate, isoxachlortole, benzobicyclon, bicyclopyrone, picolinafen, beflubutamid, ketospiradox, ketospiradox-potassium, and flusulfinam.

[0124] (6) Such as diclofop-methyl, diclofop acid, pyriphenop-sodium, fluazifop-butyl, fluazifop acid, fluazifop-P, fluazifop-P-butyl, haloxyfop-methyl, haloxyfop-methyl, haloxyfop-butyl ...methyl, haloxyfop-butyl, haloxyfop-methyl, haloxyfop-butyl, haloxyfop-methyl, haloxyfop-butyl, haloxyfop- p), haloxyfop-etotyl, haloxyfop-P, haloxyfop-P-methyl, quizalofop-ethyl, quizalofop-P, quizalofop-P-ethyl, quizalofop-P-tefuryl, cyhalofop-butyl, oxadiazine Aryloxyphenoxypropionic acid compounds such as fenoxaprop-ethyl, fenoxaprop-P, fenoxaprop-P-ethyl, clodinafop-propargyl, clodinafop, propaquizafop, HNPC-A8169, and SYP-1924; cyclohexanedione compounds such as alloxydim-sodium, alloxydim, clethodim, sethoxydim, tralkoxydim, butroxydim, tepraloxydim, profoxydim, and cycloxydim; phenylpyrazoline compounds such as pinoxaden; and compounds that are believed to inhibit the biosynthesis of fatty acids and show herbicidal effects on plants.

[0125] (7) Such as chlorimuron-ethyl, chlorimuron acid, sulfometuron-methyl, sulfometuron acid, primisulfuron-methyl, primisulfuron acid, bensulfuron-methyl, bensulfuron acid, chlorsulfuron, metsulfuron-methyl, metsulfuron acid, ethers cinosulfuron, pyrazosulfuron-ethyl, pyrazosulfuron, flazasulfuron, rimsulfuron, nicosulfuron, imazosulfuron, flucetosulfuron, cyclosulfamuron, prosulfuron, flupyrsulfuron-methyl-sodium, flupyrsulfuron flupyrsulfuron, triflusulfuron-methyl, triflusulfuron, halosulfuron-methyl, halosulfuron, thifensulfuron-methyl, thifensulfuron, ethoxysulfuron, oxasulfuron, ethametsulfuron, ethametsulfuron on-methyl), iodosulfuron, iodosulfuron-methyl-sodium, sulfosulfuron, triasulfuron, tribenuron-methyl, tribenuron, tritosulfuron, foramsulfuron, trifloxysulfuron, trifloxysulfuron-sodium,Mesosulfuron-methyl, mesosulfuron, orthosulfamuron, amidosulfuron, azimsulfuron, propyrisulfuron, metazosulfuron, methiopyrsulfuron, monosulfuron-methyl, iofensulfuron, iofensulfuron sodium sulfonylurea compounds such as flumetsulam, metosulam, dimesulfazet, diclosulam, cloransulam-methyl, florasulam, penoxsulam, and pyroxsulam; imazapyr, imazapyr-isopropylamine salt, and imidazolinone compounds such as propylammonium, imazethapyr, imazethapyr-ammonium, imazaquin, imazaquin-ammonium, imazamox, imazamox-ammonium, imazamethabenz, imazamethabenz-methyl, and imazapic; pyrimidine sulfoxide (pyrimidinesulfoxide) rithiobac-sodium), bispyribac-sodium, pyriminobac-methyl, pyribenzoxim, pyriftalid, pyriflubenzoxim; flucarbazone, flucarbazone-sodium, propoxycarbazone-sodium, propoxycarbazone acid,Sulfonylaminocarbonyl triazolinone compounds such as thiencarbazone-methyl; sulfonylanilide compounds such as pyrimisulfan and triafamone; in addition, glyphosate, glyphosate-sodium, glyphosate-potassium, glyphosate-ammonium, glyphosate-diammonium, glyphosate-isopropylammonium, glufosinate-sulfate Compounds that are believed to exhibit herbicidal effects by inhibiting the biosynthesis of amino acids in plants, such as glyphosate-trimesium, glyphosate-sesquisodium, glufosinate, glufosinate-ammonium, glufosinate-P, glufosinate-P-ammonium, glufosinate-P-sodium, bialafos, bialafos-sodium, and cinmethylin.

[0126] (8) Dinitroaniline compounds such as trifluralin, oryzalin, nitralin, pendimethalin, ethalfluralin, benfluralin, prodiamine, butralin and dinitramine; amide compounds such as bensulide, naproxamide, naproxamide-M, propyzamide, pronamide and beflubutamid-M; organophosphorus such as amiprofos-methyl, butamifos, anilofos and piperophos phenyl carbamate compounds such as propham, chlorpropham, barban, and carbetamide; cumylamine compounds such as daimuron, cumyluron, bromobutide, and methyldymron; in addition, compounds that are believed to exhibit herbicidal effects by inhibiting plant cell mitosis such as dithiopyr, thiazopyr, chlorthal-dimethyl, chlorthal, diphenamid, flamprop-M-methyl, flamprop-M, flamprop-M-isopropyl, and swep.

[0127] (9) Chloroacetamide compounds such as alachlor, metazachlor, butachlor, pretilachlor, metolachlor, S-metolachlor, thenylchlor, pethoxamid, acetochlor, propachlor, dimethenamid, dimethenamid-P, propisochlor, and dimethachlor; molinate, dimepiperate, pyributicarb, EPTC, butylate, vernolate, pebulate, cycloate ), prosulfocarb, esprocarb, thiobencarb, diallate, tri-allate, orbencarb; in addition, compounds that are believed to exhibit herbicidal effects by inhibiting protein biosynthesis or lipid biosynthesis in plants, such as etobenzanid, mefenacet, flufenacet, tridiphane, fentrazamide, oxaziclomefone, benfuresate, pyroxasulfone, dalapon, dalapon-sodium, TCA-sodium, trichloroacetic acid, etc.

[0128] (10) Compounds that are believed to exhibit herbicidal activity by inhibiting cellulose biosynthesis in plants, such as dichlobenil, triaziflam, indaziflam, flupoxam, and isoxaben.

[0129] (11) MSMA, DSMA, CMA, endothal, endothall-dipotassium, endothall-sodium, endothall-mono(N,N-dimethylalkylammonium), ethofumesate, sodium chlorate, pelargonic acid, nonanoic acid, fosamine, fosamine-ammonium, ipfencarbazone, acrolein, ammonium sulfamate, borax, chloroacetic acid, sodium chloroacetate, cyanamide, methylarsonic acid, dimethylarsinic acid acid), sodium dimethylarsinate, dinoterb, dinoterb-ammonium, dinoterb-diolamine, dinoterb-acetate, DNOC, ferrous sulfate, flupropanate, flupropanate-sodium, mefluidide, mefluidide-diolamine, metam, metam-ammonium, metam-potassium, metam-sodium, methylisothiocyanate, pentachlorophenol, sodium pentachlorophenoxide, pentachlorophenol laurate, quinoclamine, sulfuric acid acid), urea sulfatesulfate), xanthinosin, herbimycin, unguinol, metatyrosine, sarmentine, thaxtomin A, mevalocidin, alpha-limonene, pyribambenz-propyl, pyribambenz-isopropyl, iptriazopyrid, asulam, asulam-sodium, icafolin and other herbicides.

[0130] (12) Microorganisms that are believed to exhibit herbicidal activity by parasitizing plants, such as Xanthomonas campestris, Exserohilummonoceras, and Drechslera monoceras.

[0131] The above-mentioned other herbicidal compounds may be selected from one or more kinds as appropriate. It should be noted that the other herbicidal compounds are not limited to the compounds exemplified above.

[0132] When applying the composition of the present invention, you can arbitrarily choose to apply to undesirable plants, and to the place where they grow (it can be before or after the production of the plant) or to the place where useful plants are cultivated. In addition, fluazifop-butyl (a1) and the herbicide compound (a2) can be mixed and applied when the materials are separately formulated, or they can be formulated together and applied. As an example of a specific application method, the following method can be cited.

[0133] 1. Fluthiosulfuron (a1) and the herbicide compound (a2) are prepared together and applied directly.

[0134] 2. Fluthiosulfuron (a1) and the herbicide compound (a2) are prepared together, diluted with water or the like to a predetermined concentration, and various spreading agents (surfactants, vegetable oils, mineral oils, etc.) are added as needed before application.

[0135] 3. Fluthiosulfuron (a1) and the herbicide compound (a2) are separately formulated and applied directly.

[0136] 4. Fluthiosulfuron (a1) and the herbicide compound (a2) are separately formulated, diluted with water or the like to a predetermined concentration, and various spreading agents (surfactants, vegetable oils, mineral oils, etc.) are added as needed before application.

[0137] 5. Fluthiosulfuron (a1) and the herbicide compound (a2) are prepared separately and diluted with water or the like to a predetermined concentration, mixed, and various spreading agents (surfactants, vegetable oils, mineral oils, etc.) are added as needed and applied.

[0138] The composition of the present invention can be prepared by mixing fluazifop-butyl (a1) as an active ingredient with a herbicide compound (a2) and various adjuvants according to a conventional pesticide formulation method, and the formulation can be prepared in various forms such as powder, granules, water-dispersible granules, wettable powders, tablets, pills, capsules (including forms packaged with water-soluble films), aqueous suspensions, oily suspensions, microemulsions, suspoemulsions, aqueous solvents, emulsions, liquids, pastes, etc. for application, but as long as it is suitable for the purpose of the present invention, it can be any formulation form commonly used in this field. When preparing the formulation, fluazifop-butyl (a1) and the herbicide compound (a2) can be prepared together, or they can be prepared separately.

[0139] Examples of auxiliary agents used in the preparations include solid carriers such as diatomaceous earth, slaked lime, calcium carbonate, talc, white carbon, kaolin, bentonite, kaolinite, sericite, clay, sodium carbonate, sodium bicarbonate, sodium sulfate, zeolite, starch, and sugars; solvents such as water, toluene, xylene, solvent naphtha, dioxane, acetone, isophorone, methyl isobutyl ketone, chlorobenzene, cyclohexane, dimethyl sulfoxide, dimethylformamide, dimethylacetamide, N-methyl-2-pyrrolidone, and alcohols (e.g., propylene glycol); Fatty acid salts, benzoates, alkyl sulfosuccinates, dialkyl sulfosuccinates, polycarboxylates, alkyl sulfate ester salts, alkyl sulfates, alkyl aryl sulfates, alkyl diglycol ether sulfates, alcohol sulfate ester salts, alkyl sulfonates, alkyl aryl sulfonates, aryl sulfonates, lignin sulfonates, alkyl diphenyl ether disulfonates, polystyrene sulfonates, alkyl phosphate ester salts, alkyl aryl phosphates, styrylaryl phosphates, polyoxyethylene alkyl ether sulfate ester salts, polyoxyethylene alkyl aryl ether sulfate anionic surfactants and spreading agents such as salts, polyoxyethylene alkyl aryl ether sulfates, polyoxyethylene alkyl ether phosphates, polyoxyethylene alkyl aryl phosphates, polyoxyethylene aryl ether phosphates, naphthalene sulfonate formaldehyde condensates, and alkyl naphthalene sulfonate formaldehyde condensates; sorbitan fatty acid esters, glycerol fatty acid esters, fatty acid polyglycerol esters, fatty acid alcohol polyglycol ethers, acetylene glycols, acetylene alcohols, oxyalkylene block polymers, polyoxyethylene alkyl ethers, polyoxyethylene alkyl aryl ethers, polyoxyethylene Nonionic surfactants and spreading agents such as styryl aryl ether, polyoxyethylene glycol alkyl ether, polyethylene glycol, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerol fatty acid ester, polyoxyethylene hydrogenated castor oil, and polyoxypropylene fatty acid ester; vegetable oils and mineral oils such as olive oil, kapok oil, castor oil, palm oil, camellia oil, coconut oil, sesame oil, corn bran oil, rice bran oil, peanut oil, cottonseed oil, soybean oil, rapeseed oil, linseed oil, tung oil, and liquid paraffin.

[0140] As long as the purpose of the present invention is not exceeded, one or more of these adjuvants may be appropriately selected and used. In addition, various adjuvants commonly used, such as extenders, thickeners, anti-settling agents, antifreeze agents, dispersion stabilizers, phytotoxicity reducing agents, antifungal agents, foaming agents, disintegrants, and binders, may also be used. The mixing ratio of various adjuvants to fluazifop-butyl (a1) and the herbicide compound (a2) or their mixture is about 0.1:99.9 to 99.9:0.1 by weight, preferably about 0.2:99.8 to 85:15.

[0141] Next, an example of a preferred embodiment of the present invention is described, but the present invention is not to be construed as being limited to these.

[0142] [1] A method for controlling undesirable plants and promoting the growth of useful plants, wherein an effective amount of tiafenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A are applied to undesirable plants, a place where undesirable plants grow, or a place where useful plants are cultivated.

[0143] [Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds]

[0144] [2] The method according to [1], wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor, pyroxasulfone, pethoxamid, tri-allate and dimethenamid-P.

[0145] [3] The method according to [1], wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor, metribuzin, pyroxasulfone and tri-allate.

[0146] [4] The method according to [1], wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor, pyroxasulfone and tri-allate.

[0147] [5] The method according to [1], wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor and metribuzin.

[0148] [6] The method according to [1], wherein the herbicide compound (a2) is S-metolachlor or metribuzin.

[0149] [7] The method according to [1], wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor and pyroxasulfone.

[0150] [8] The method according to [1], wherein the herbicide compound (a2) is S-metolachlor or pyroxasulfone.

[0151] [9] The method according to [1], wherein the herbicide compound (a2) is at least one selected from S-metolachlor and tri-allate.

[0152]

[10] The method according to [1], wherein the herbicide compound (a2) is S-metolachlor or tri-allate.

[0153]

[11] The method according to [1], wherein the herbicide compound (a2) is S-metolachlor.

[0154]

[12] The method according to any one of [1] to

[11] , wherein (a1) and (a2) are applied at a mixing ratio of 1:0.8 to 1:1000 by weight.

[0155]

[13] The method according to any one of [1] to

[11] , wherein (a1) and (a2) are applied at a mixing ratio of 1:1.2 to 1:200 by weight.

[0156]

[14] The method according to any one of [1] to

[11] , wherein (a1) is applied at 0.01 to 400 g / ha, and (a2) is applied at 0.1 to 5000 g / ha.

[0157]

[15] The method according to any one of [1] to

[11] , wherein (a1) is applied at 0.05 to 300 g / ha, and (a2) is applied at 1 to 4000 g / ha.

[0158]

[16] A pesticide composition comprising tiafenacil (a1) and at least one herbicide compound (a2) selected from the above compound group A as active ingredients, wherein the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 by weight.

[0159]

[17] The pesticide composition according to

[16] , wherein the mixing ratio of (a1) to (a2) is 1:1.2 to 1:200 by weight.

[0160]

[18] A combination comprising tiafenacil (a1) and at least one herbicide compound (a2) selected from the above compound group A as active ingredients, wherein the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 by weight.

[0161]

[19] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is at least one selected from S-metolachlor, pyroxasulfone, pethoxamid, tri-allate and dimethenamid-P.

[0162]

[20] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor, metribuzin, pyroxasulfone and tri-allate.

[0163]

[21] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor, pyroxasulfone and tri-allate.

[0164]

[22] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is at least one selected from S-metolachlor and metribuzin.

[0165]

[23] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is S-metolachlor or metribuzin.

[0166]

[24] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is at least one selected from S-metolachlor and pyroxasulfone.

[0167]

[25] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is S-metolachlor or pyroxasulfone.

[0168]

[26] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is at least one selected from S-metolachlor and tri-allate.

[0169]

[27] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is S-metolachlor or tri-allate.

[0170]

[28] The pesticide composition according to

[16] or

[17] , wherein the herbicide compound (a2) is S-metolachlor.

[0171]

[29] A method for promoting the growth of useful plants, which comprises applying an effective amount of tiafenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A to undesirable plants, a place where undesirable plants grow, or a place where useful plants are cultivated before starting to cultivate the useful plants.

[0172] [Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds]

[0173]

[30] The method for promoting the growth of useful plants according to

[29] , wherein the herbicide compound (a2) is S-metolachlor.

[0174]

[31] A method for increasing the yield of useful plants, comprising applying an effective amount of tiafenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A to undesirable plants, a site where undesirable plants grow, or a site where useful plants are cultivated.

[0175] [Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds]

[0176]

[32] The method according to

[31] , wherein the herbicide compound (a2) is S-metolachlor.

[0177]

[33] A method for promoting the growth of useful plants, comprising applying an effective amount of tiafenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A to undesirable plants, a site where undesirable plants grow, or a site where useful plants are cultivated.

[0178] [Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds]

[0179]

[34] The method according to

[33] , wherein the herbicide compound (a2) is S-metolachlor.

[0180] Example

[0181] In order to describe the present invention in more detail, Examples are described below, but the present invention is not limited to these Examples.

[0182] First, a test on the herbicidal effect of the composition of the present invention on undesirable plants will be described.

[0183] (1) Weed control test (Lolium multiflorum)

[0184] 1 / 1,000,000 ha pots were filled with soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the multiflora ryegrass reached the 2.3-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-metolachlor as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by a conventional aqueous suspension preparation method were diluted with water (equivalent to 200 L / ha) containing 0.5 volume % of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Co., Ltd.). The growth state of the multiflora ryegrass was visually inspected on the 6th day after the spraying, and the growth inhibition rate (%) was evaluated according to the following evaluation criteria. The results are shown in Table 1.

[0185] Evaluation criteria:

[0186] Growth inhibition rate (%) = 0 (equivalent to the untreated area) ~ 100 (completely dead)

[0187] In addition, based on the following Colby formula (see SR Colby, Weeds, 15 (1967), pp20-22), the growth inhibition rate (%) [expected value] was calculated, and the results are also shown in Table 1.

[0188] Colby Formula;

[0189] E=X+Y-(X·Y / 100)

[0190] X: Growth inhibition rate when compound A is treated at αg / ha

[0191] Y: Growth inhibition rate when compound B is treated at βg / ha

[0192] E: Expected growth inhibition rate when compound A is treated at a dose of αg / ha and compound B is treated at a dose of βg / ha [expected value]

[0193] That is, if the growth inhibition rate of the composition of the present invention exceeds E (growth inhibition rate [expected value]) calculated by the above calculation, the combination has a synergistic effect.

[0194] As can be seen from Table 1, by mixing fluazifop-butyl (a1) and S-isopropylamine (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) and S-isopropylamine (a2) are combined exceeds the expected value in any combination of dosages, and has a synergistic effect.

[0195] [Table 1]

[0196] Table 1

[0197]

[0198] (2) Weed control test (Lolium multiflorum)

[0199] A 1 / 1,000,000 ha pot was filled with dryland crop soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.5-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-metolachlor as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by a conventional aqueous suspension preparation method were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CORPORATION). On the 16th day after the spraying, the growth state of Lolium perenne was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 2. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 2.

[0200] As can be seen from Table 2, by mixing fluazifop-butyl (a1) and S-isopropylamine (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) and S-isopropylamine (a2) are combined exceeds the expected value in any combination of dosages, and has a synergistic effect.

[0201] [Table 2]

[0202] Table 2

[0203]

[0204] (3) Weed control effect test (Lolium multiflorum)

[0205] A 1 / 1,000,000 ha pot was filled with dryland crop soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.8-3.2 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-metolachlor as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by a conventional aqueous suspension preparation method were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CORPORATION). On the 7th day after the spraying, the growth state of Lolium perenne was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 3. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 3.

[0206] As can be seen from Table 3, by mixing fluazifop-butyl (a1) and S-isopropylamine (a2) at a specific dosage, the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) and S-isopropylamine (a2) are combined also exceeds the expected value in the combination of specific dosages, and has a synergistic effect.

[0207] [Table 3]

[0208] Table 3

[0209]

[0210] (4) Weed control test (Lolium multiflorum)

[0211] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with Italian ryegrass (Lolium multiflorum) seeds. When the multiflora ryegrass reached the 2.5-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as the active ingredient prepared by a conventional aqueous suspension preparation method and a wettable powder containing metribuzin as the active ingredient (trade name: Sencor wettable powder, manufactured by Bayer CropScience) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CORPORATION). On the 7th day after the spraying, the growth state of Lolium perenne was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 4. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 4.

[0212] As can be seen from Table 4, by mixing fluazifop-butyl (a1) and metribuzin (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) and metribuzin (a2) are combined exceeds the expected value in any combination of drug doses, and has a synergistic effect.

[0213] [Table 4]

[0214] Table 4

[0215]

[0216] (5) Weed control test (Lolium multiflorum)

[0217] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with Italian ryegrass (Lolium multiflorum) seeds. When the multiflora ryegrass reached the 3.0-3.3 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient prepared by a conventional aqueous suspension preparation method and a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), a water-dispersible granule containing pyraclostrobin as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science), or a wettable powder containing pyraclostrobin as an active ingredient prepared by a conventional wettable powder preparation method were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 6th day after the spraying, the growth state of Lolium multiflorum was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 5. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 5.

[0218] As can be seen from Table 5, by mixing fluazifop-butyl (a1) with metribuzin, pyraclostrobin, or wild wheat dapoxetine (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with metribuzin, pyraclostrobin, or wild wheat dapoxetine (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0219] [Table 5]

[0220] Table 5

[0221]

[0222] (6) Weed control test (Lolium multiflorum)

[0223] A 1 / 1,000,000 ha pot was filled with dryland crop soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.5-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient prepared by a conventional aqueous suspension preparation method and a water-dispersible granule containing pyraclostrobin as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CORPORATION). On the 14th day after the spraying, the growth state of Lolium perenne was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 6. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 6.

[0224] As can be seen from Table 6, by mixing fluazifop-butyl (a1) and pyraclostrobin (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) and pyraclostrobin (a2) are combined exceeds the expected value in any combination of drug doses, and has a synergistic effect.

[0225] [Table 6]

[0226] Table 6

[0227]

[0228] (7) Weed control effect test (Lolium multiflorum)

[0229] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with Italian ryegrass (Lolium multiflorum) seeds. When the multiflora ryegrass reached the 2.8-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as the active ingredient and an emulsion containing pethoxacil as the active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA) prepared by a conventional aqueous suspension preparation method, or an emulsion containing fenacet-P as the active ingredient (trade name: Field Star P Emulsion, manufactured by BASF) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreader (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). The growth state of Lolium perenne was observed and investigated on the 7th day after spraying, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test, and the results are shown in Table 7. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test, and the results are also shown in Table 7.

[0230] As can be seen from Table 7, by mixing fluazifop-butyl (a1) with pethoamid or cresfenacet-P (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with pethoamid or cresfenacet-P (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0231] [Table 7]

[0232] Table 7

[0233]

[0234] (8) Weed control test (Lolium multiflorum)

[0235] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with Italian ryegrass (Lolium multiflorum) seeds. When the multiflora ryegrass reached the 3.0-3.1 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-isopropylamine as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by a conventional aqueous suspension preparation method, a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), or a water-dispersible granule containing sulfamethoxazole as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 4th day after the spraying, the growth state of Lolium perenne was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 8. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 8.

[0236] As can be seen from Table 8, by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, or pyraclostrobin (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with S-isopropylamine, metribuzin, or pyraclostrobin (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0237] [Table 8]

[0238] Table 8

[0239]

[0240] (9) Weed control effect test (Lolium multiflorum)

[0241] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with Italian ryegrass (Lolium multiflorum) seeds. When the multiflora ryegrass reached the 3.2-4.0 leaf stage, an aqueous suspension prepared by a conventional aqueous suspension preparation method and containing fluazifop-butyl as an active ingredient, a wettable powder prepared by a conventional wettable powder preparation method and containing pyralid as an active ingredient, an emulsion containing pethoxamid as an active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA), or an emulsion containing fenacet-P as an active ingredient (trade name: Field Star P emulsion, manufactured by BASF) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreader (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 6th day after the spraying, the growth state of Lolium perenne was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 9. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 9.

[0242] As can be seen from Table 9, by mixing fluazifop-butyl (a1) with wild wheat ballast, pethoamid, or methylphenacyl-P (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with wild wheat ballast, pethoamid, or methylphenacyl-P (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0243] [Table 9]

[0244] Table 9

[0245]

[0246] (10) Weed control effect test (Eleusine indica)

[0247] 1 / 1,000,000 ha pots were filled with upland crop soil and seeded with goosegrass (Eleusine indica). When the sedge grass reached the 6.5-7.8 leaf stage, an aqueous suspension prepared by a conventional aqueous suspension preparation method with fluazifop-butyl as the active ingredient, an emulsion with S-isopropylamine as the active ingredient (trade name: Dual Gold, manufactured by Syngenta), a wettable powder with methicillin as the active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), or a water-dispersible granule with sulfamethoxazole as the active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) was diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 13th day after spraying, the growth state of goosegrass was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test, and the results are shown in Table 10. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test, and the results are also shown in Table 10.

[0248] From Table 10, it can be seen that by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, or pyraclostrobin (a2), the control effect on goosegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with S-isopropylamine, metribuzin, or pyraclostrobin (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0249] [Table 10]

[0250] Table 10

[0251]

[0252] (11) Weed control effect test (Eleusine indica)

[0253] 1 / 1,000,000 ha pots were filled with upland crop soil and seeded with goosegrass (Eleusine indica). When the sedge grass reached the 7.0-8.3 leaf stage, an aqueous suspension prepared by a conventional aqueous suspension preparation method with fluazifop-butyl as the active ingredient, a wettable powder prepared by a conventional wettable powder preparation method with oxazolidinone as the active ingredient, an emulsion with pethodiola as the active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA), or an emulsion with fenacet-P as the active ingredient (trade name: Field Star P emulsion, manufactured by BASF) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the third day after spraying, the growth state of goosegrass was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test, and the results are shown in Table 11. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test, and the results are also shown in Table 11.

[0254] As can be seen from Table 11, by mixing fluazifop-butyl (a1) with wild wheat ballast, pethoamid, or methylphenoxyacetamide-P (a2), the control effect on goosegrass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with wild wheat ballast, pethoamid, or methylphenoxyacetamide-P (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0255] [Table 11]

[0256] Table 11

[0257]

[0258] (12) Herbicidal effect test (Amaranthus tuberculatus)

[0259] 1 / 1,000,000 ha pots were filled with upland crop soil and waterhemp (Amaranthus tuberculatus) seeds were sown. When Amaranthus striata reached the 6.0-8.5 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-isopropylamine as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by a conventional aqueous suspension preparation method, a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), or a water-dispersible granule containing pyraclostrobin as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 13th day after spraying, the growth state of Amaranthus scabra was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 12. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 12.

[0260] From Table 12, it can be seen that by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, or pyraclostrobin (a2), the control effect on Amaranthus striata is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with S-isopropylamine, metribuzin, or pyraclostrobin (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0261] [Table 12]

[0262] Table 12

[0263]

[0264] (13) Herbicidal effect test (Amaranthus tuberculatus)

[0265] 1 / 1,000,000 ha pots were filled with upland crop soil and waterhemp (Amaranthus tuberculatus) seeds were sown. When Amaranthus striata reached the 5.0-8.0 leaf stage, an aqueous suspension prepared by a conventional aqueous suspension preparation method and containing fluazifop-butyl as an active ingredient, a wettable powder prepared by a conventional wettable powder preparation method and containing oxazolidinone as an active ingredient, an emulsion containing pethoxamid as an active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA), or an emulsion containing fenacet-P as an active ingredient (trade name: Field Star P emulsion, manufactured by BASF) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreader (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 4th day after the spraying, the growth state of Amaranthus scabra was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 13. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 13.

[0266] As can be seen from Table 13, by mixing fluazifop-butyl (a1) with wild wheat ballast, pethoamid, or methylphenthiazide-P (a2), the control effect on Amaranthus scabra is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with wild wheat ballast, pethoamid, or methylphenthiazide-P (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0267] [Table 13]

[0268] Table 13

[0269]

[0270] (14) Weed control test (Conyza canadensis)

[0271] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with horseweed (Conyza canadensis) seeds. When the diameter of the small grass reached 12-17 cm, an aqueous suspension containing fluazifop-butyl as the active ingredient and an emulsion containing S-isopropylamine as the active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by the conventional method for preparing an aqueous suspension, a wettable powder containing metribuzin as the active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), or a water-dispersible granule containing sulfamethoxazole as the active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the 6th day after spraying, the growth state of the small grass was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test. The results are shown in Table 14. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test. The results are also shown in Table 14.

[0272] As can be seen from Table 14, by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, or pyraclostrobin (a2), the control effect on pyraclostrobin is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with S-isopropylamine, metribuzin, or pyraclostrobin (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0273] [Table 14]

[0274] Table 14

[0275]

[0276] (15) Weed control test (Conyza canadensis)

[0277] 1 / 1,000,000 ha pots were filled with upland crop soil and sown with horseweed (Conyza canadensis) seeds. When the diameter of the small grass reached 13-19 cm, an aqueous suspension prepared by a conventional aqueous suspension preparation method with fluazifop-butyl as the active ingredient, a wettable powder prepared by a conventional wettable powder preparation method with oxazolidinone as the active ingredient, an emulsion with pethodiola as the active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA), or an emulsion with fenacet-P as the active ingredient (trade name: Field Star P emulsion, manufactured by BASF) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). On the third day after spraying, the growth state of the sedge was visually inspected, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above-mentioned (1) herbicidal effect test, and the results are shown in Table 15. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above-mentioned (1) herbicidal effect test, and the results are also shown in Table 15.

[0278] As can be seen from Table 15, by mixing fluazifop-butyl (a1) with wild wheat dapoxetine, pethoamid, or cresenesulfonamide-P (a2), the control effect on small grass is improved compared with the use of each single agent. It is known that the growth inhibition rate when fluazifop-butyl (a1) is combined with wild wheat dapoxetine, pethoamid, or cresenesulfonamide-P (a2) exceeds the expected value in any combination, and has a synergistic effect.

[0279] [Table 15]

[0280] Table 15

[0281]

[0282] Next, a comparative test between the composition of the present invention and a composition containing other herbicide compounds instead of fluazifop-butyl is described.

[0283] (16) Weed control effect test (comparative test)

[0284] A 1 / 1,000,000 ha pot was filled with dryland crop soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.5-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient prepared by a conventional aqueous suspension preparation method, an aqueous suspension containing saflufenacil as an active ingredient (trade name: Sharpen, manufactured by BASF), a wettable powder containing fomesafen as an active ingredient prepared by a conventional wettable powder preparation method, an emulsion containing fluazifop-butyl as an active ingredient (trade name: ATTACK SHOT emulsion, manufactured by Maruwa Biochemical Co., Ltd. (Maruwa Biochemical Co., Ltd.) バ A dry flowable concentrate with carfentrazone as an active ingredient (trade name: Task DF, manufactured by Ishihara Sangyo Co., Ltd.), or an aqueous suspension with pyraclostrobin as an active ingredient (trade name: Ecopart Flowable, manufactured by Nippon Nosokaku Co., Ltd.), and an emulsion with S-isopropylamine as an active ingredient (trade name: Dual Gold, manufactured by Syngenta), or a wettable powder with metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science Co., Ltd.), in a solution containing 0.5 volume % of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) was diluted in water (equivalent to 200 L / ha) and sprayed with a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CO., L.). The growth state of the multiflora ryegrass was visually inspected on the 4th day after the spraying, and the growth inhibition rate (%) was evaluated according to the evaluation criteria described in the above (1) herbicidal effect test. The results are shown in Table 16. In addition, the growth inhibition rate (%) [expected value] was calculated according to the Colby formula described in the above (1) herbicidal effect test. The results are also shown in Table 16.

[0285] As can be seen from Table 16, by mixing fluazifop-butyl (a1) with S-metolachlor or metribuzin (a2), the control effect on multifloral ryegrass is improved compared with the use of each single agent. It is known that when fluazifop-butyl (a1) is combined with S-metolachlor or metribuzin, the growth inhibition rate exceeds the expected value, and there is a synergistic effect.

[0286] Furthermore, the combination of fluazifop-butyl (a1) and S-metolachlor or metribuzin (a2) as the composition of the present invention showed a higher growth inhibition rate than the case where a test compound other than fluazifop-butyl was combined with S-metolachlor or metribuzin.

[0287] On the other hand, by mixing the test compounds other than fluazifop-butyl with S-isopropylamine or metribuzin, no improvement in the control effect on multifloral ryegrass was confirmed compared with the use of each single agent. Furthermore, it was found that the growth inhibition rate in the case of combining them did not exceed the expected value, and there was no synergistic effect.

[0288] [Table 16]

[0289] Table 16

[0290]

[0291] Next, a test on the growth promoting effect of the composition of the present invention on useful plants (hereinafter referred to as a plant growth promoting effect test) will be described.

[0292] First, a test on the plant growth promoting effect under conditions where plant growth is undesirable is described.

[0293] (17) Plant growth promotion effect test (corn)

[0294] 1 / 1,000,000ha pots were filled with soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.5-3.0 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-isopropylamine as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) or a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science) prepared by a conventional aqueous suspension preparation method were mixed with a spreading agent (trade name: Destin) containing 0.5 volume % and then spread to the soil. y HC, manufactured by Winfield Solutions, LLC.) was diluted in water (equivalent to 200 L / ha) and sprayed with a small spray gun (model: W-101-132G, manufactured by ANEST IWATA Co., Ltd.). Seeds of forage corn (variety: Snow Dent Otoha, manufactured by Snow Brand Seedlings Co., Ltd.) were sown in the pots after spraying. The aboveground part of the forage corn was cut on the 20th day after sowing, and the weight was measured to calculate the fresh weight. The results are shown in Table 17.

[0295] As can be seen from Table 17, by mixing fluazifop-butyl (a1) with S-metolachlor or metribuzin (a2), the fresh weight of corn for feed increased compared with the untreated area and the area using each agent alone.

[0296] [Table 17]

[0297] Table 17

[0298]

[0299] (18) Plant growth promotion effect test (corn)

[0300] 1 / 1,000,000 ha pots were filled with soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the multiflora ryegrass reached the 2.7-3.1 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing S-isopropylamine as an active ingredient (trade name: Dual Gold, manufactured by Syngenta) prepared by a conventional aqueous suspension preparation method, a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), or a water-dispersible granule containing sulfamethoxazole as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by Anest Iwata Corporation). Seeds of forage corn (variety: Snow Dent Otoha, manufactured by Snow Brand Seedlings Co., Ltd.) were sown in the sprayed pots. The above-ground parts of the forage corn were cut off on the 21st day after sowing and weighed to determine the fresh weight. The results are shown in Table 18.

[0301] As can be seen from Table 18, by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, or pyraclostrobin (a2), the fresh weight of feed corn increased compared with the untreated area and the use of each agent alone.

[0302] [Table 18]

[0303] Table 18

[0304]

[0305] (19) Plant growth promotion effect test (corn)

[0306] A 1 / 1,000,000 ha pot was filled with soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 3.2-3.7 leaf stage, an aqueous suspension prepared by a conventional aqueous suspension preparation method with fluazifop-butyl as an active ingredient, a wettable powder prepared by a conventional wettable powder preparation method with fenvalerate as an active ingredient, or an emulsion (trade name: Successor 600, manufactured by Stahler Suisse SA) with pethodiamide as an active ingredient was diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed with a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CO., LTD.). Seeds of forage corn (variety: Snow Dent Otoha, manufactured by Snow Brand Seedlings Co., Ltd.) were sown in the sprayed pots. The aboveground parts of the forage corn were cut on the 21st day after sowing and weighed to determine the fresh weight. The results are shown in Table 19.

[0307] As can be seen from Table 19, by mixing fluazifop-butyl (a1) with fenthiocarb or pethodiolac (a2), the fresh weight of corn for feed increased compared with the untreated area and the area using each agent alone.

[0308] [Table 19]

[0309] Table 19

[0310]

[0311] (20) Plant growth promotion effect test (corn)

[0312] Soil was placed in a 1 / 1,000,000-ha pot, and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.7-3.0-leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and an emulsion containing fenacet-P as an active ingredient (trade name: Field Star P emulsion, manufactured by BASF) prepared by a conventional aqueous suspension preparation method were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Co., Ltd.). Seeds of forage corn (variety: Snow Dent Otoha, manufactured by Snow Brand Seedlings Co., Ltd.) were sown in the pot after spraying. On the 33rd day after sowing, the above-ground part of the feed corn was cut and weighed to determine the fresh weight. The results are shown in Table 20.

[0313] As can be seen from Table 20, by mixing fluazifop-butyl (a1) and pyrifos-P (a2), the fresh weight of corn for feed increased compared with the untreated area and the area using each agent alone.

[0314] [Table 20]

[0315] Table 20

[0316]

[0317] (21) Plant growth promotion effect test (wheat)

[0318] A 1 / 1,000,000 ha pot was filled with soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 3.3-3.8 leaf stage, an aqueous suspension containing fluazifop-butyl as an active ingredient and a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science) or a water-dispersible granule containing pyraclostrobin as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science) prepared by a conventional aqueous suspension preparation method were diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) and sprayed using a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CORPORATION). Wheat seeds (variety: Norin 61, manufactured by Asahi Farm) were sown in the sprayed pots. The aboveground parts of the wheat were harvested on the 22nd day after sowing and weighed to determine the fresh weight. The results are shown in Table 21.

[0319] As can be seen from Table 21, by mixing fluazifop-butyl (a1) with metribuzin or pyraclostrobin (a2), the fresh weight of wheat increased compared with the untreated area and the area using each agent alone.

[0320] [Table 21]

[0321] Table 21

[0322]

[0323] (22) Plant growth promotion effect test (wheat)

[0324] 1 / 1,000,000ha pots were filled with soil and seeds of Italian ryegrass (Lolium multiflorum) were sown. When the Italian ryegrass reached the 2.5-2.8 leaf stage, an aqueous suspension prepared by a conventional aqueous suspension preparation method with fluazifop-butyl as the active ingredient and a wettable powder prepared by a conventional wettable powder preparation method with ferric pyraclostrobin as the active ingredient were mixed with a spreading agent (trade name: Destin) containing 0.5% by volume. yHC, manufactured by Winfield Solutions, LLC.) was diluted in water (equivalent to 200 L / ha) and sprayed with a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CO., LTD.). Wheat seeds (variety: Norin 61, manufactured by Asahi Farm) were sown in the pots after spraying. The aboveground part of the wheat was cut on the 21st day after sowing, and the weight was measured to find the fresh weight. The results are shown in Table 22.

[0325] As can be seen from Table 22, by mixing fluazifop-butyl (a1) and oxazolidinone (a2), the fresh weight of wheat increased compared with the untreated area and the area using each agent alone.

[0326] [Table 22]

[0327] Table 22

[0328]

[0329] (23) Plant growth promotion effect test (soybean)

[0330] 1 / 200,000 ha pots were filled with soil and sown with seeds of Italian ryegrass (Lolium multiflorum). When the multiflora ryegrass reaches the 2.5-3.0 leaf stage, an aqueous suspension prepared by a conventional method for preparing an aqueous suspension containing fluazifop-butyl as an active ingredient is mixed with an emulsion containing S-isopropylamine as an active ingredient (trade name: Dual Gold, manufactured by Syngenta), a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), a water-dispersible granule containing sulfamethoxam as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science), a wettable powder containing pyraclostrobin as an active ingredient prepared by a conventional method for preparing a wettable powder, an emulsion containing pethoxamid as an active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA), or an emulsion containing methacrylamid-P as an active ingredient (trade name: Field Star P emulsion, manufactured by BASF), diluted in water (equivalent to 200 L / ha) containing 0.5% by volume of a spreading agent (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.), and sprayed with a small spray gun (model: W-101-132G, manufactured by Anest Iwata Co., Ltd.). Soybean seeds (variety: ENREI, manufactured by Asahi Farm) were sown and planted in the pots after spraying. On the 97th day after sowing, seeds were collected from the grown soybeans, and the weight was measured to calculate the total weight. The results are shown in Table 23.

[0331] As can be seen from Table 23, by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, pyraclostrobin, pyraclostrobin, pethodiola, or pyraclostrobin-P (a2), the total weight of soybean seeds increased compared with the untreated area and the single agent application.

[0332] [Table 23]

[0333] Table 23

[0334]

[0335] From the results of the above-mentioned plant growth promoting effect tests (17) to (23), it was confirmed that the composition of the present invention has a growth promoting effect on useful plants. On the other hand, in the plant growth promoting effect tests (17) to (23), since the seeds of undesirable plants were sown, the undesirable plants were controlled by the composition of the present invention, so that the interference with the useful plants caused by the undesirable plants was alleviated, which is considered to be at least one of the main reasons for the growth promoting effect of the composition of the present invention on useful plants. Therefore, the plant growth promoting effect test of the composition of the present invention on useful plants, which was carried out under the condition that the seeds of undesirable plants were not sown, is recorded.

[0336] (24) Plant growth promotion effect test (soybean)

[0337] Soil was placed in a 1 / 500,000 ha pot, and an aqueous suspension containing fluazifop-butyl as an active ingredient prepared by a conventional aqueous suspension preparation method, an emulsion containing S-metolachlor as an active ingredient (trade name: Dual Gold, manufactured by Syngenta), a wettable powder containing metribuzin as an active ingredient (trade name: Sencor wettable powder, manufactured by Bayer Crop Science), a water-dispersible granule containing pyraclostrobin as an active ingredient (trade name: Sakura, manufactured by Bayer Crop Science), a wettable powder containing pyraclostrobin as an active ingredient prepared by a conventional wettable powder preparation method, an emulsion containing pethoxamid as an active ingredient (trade name: Successor 600, manufactured by Stahler Suisse SA), or an emulsion containing methoxyfen-P as an active ingredient (trade name: FieldStar P emulsion, manufactured by BASF) were mixed in a solution containing 0.5 volume % of a spreader (trade name: Destiny HC, manufactured by Winfield Solutions, LLC.) was diluted in water (equivalent to 200 L / ha) and sprayed with a small spray gun (model: W-101-132G, manufactured by ANEST IWATA CO., LTD.). Soybean seeds (variety: ENREI, manufactured by Asahi Farm) were sown in the pots after spraying. The aboveground part of the soybean was cut on the 48th day after sowing, and the weight was measured to calculate the fresh weight. The results are shown in Table 24.

[0338] As can be seen from Table 24, by mixing fluazifop-butyl (a1) with S-isopropylamine, metribuzin, pyraclostrobin, wild wheat chlorpyrifos, pethodiamide, or pyraclostrobin-P (a2), the fresh weight of soybeans increased compared with the untreated area and the use of each single agent. It can be seen that the composition of the present invention has a growth-promoting effect on soybeans under the condition that no undesirable plants are sown.

[0339] [Table 24]

[0340] Table 24

[0341]

[0342] From the results of the above-mentioned herbicidal effect test and plant growth promoting effect test, it is clear that the composition of the present invention has an effect of controlling undesirable plants and an effect of promoting the growth of useful plants.

[0343] It should be noted that the entire contents of the specification, claims, and abstract of Japanese Patent Application No. 2022-121363 filed on Jul. 29, 2022 are incorporated herein by reference and adopted as a disclosure of the specification of the present invention.

Claims

1. A method for controlling undesirable plants and promoting the growth of useful plants, wherein: An effective amount of tiafenacil (a1) and an effective amount of at least one herbicide compound (a2) selected from the following compound group A are applied to undesirable plants, a site where undesirable plants grow, or a site where useful plants are cultivated, Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds. 2 . The method according to claim 1 , wherein the herbicide compound (a2) is at least one selected from the group consisting of S-metolachlor and metribuzin.

3. The method according to claim 1, wherein the herbicide compound (a2) is S-metolachlor.

4. The method according to any one of claims 1 to 3, wherein the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 in terms of the weight ratio of (a1):(a2).

5. The method according to any one of claims 1 to 3, wherein the mixing ratio of (a1) to (a2) is 1:1.2 to 1:200 by weight. 6 . The method according to claim 1 , wherein (a1) is applied at 0.01 to 400 g / ha, and (a2) is applied at 0.1 to 5000 g / ha. 7 . The method according to claim 1 , wherein (a1) is applied at 0.05 to 300 g / ha, and (a2) is applied at 1 to 4000 g / ha.

8. A pesticide composition comprising tiafenacil (a1) and at least one herbicide compound (a2) selected from the following compound group A as active ingredients, wherein the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 by weight. Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds. 9 . The pesticide composition according to claim 8 , wherein the mixing ratio of (a1) to (a2) is 1:1.2 to 1:200 in terms of the weight ratio of (a1):(a2).

10. A combination comprising tiafenacil (a1) and at least one herbicide compound (a2) selected from the following compound group A as active ingredients, wherein the mixing ratio of (a1) to (a2) is 1:0.8 to 1:1000 by weight. Compound Group A: S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, and dimethenamid-P as herbicide compounds.

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