MXPA06004410A - Herbicidal method - Google Patents

Abstract

A combination of N-(7-fluoro-3, 4-dihydro-3 -oxo-4-prop -2-ynyl -2H-1, 4-benzoxadin-6-yl)cyclohex -1-ene-1, 2-dicarboxamide [Flumioxazin]and 1-(2-chloroimidazo[1, 2-a]pyridin-3 -ylsulfonyl)-3 -(4, 6-dimethoxypyrimidin -2-yl)urea [Imazosulfuron], wherein the weight ratio of Flumioxazin:Imazosulfuron is 1:0.1-20, is useful for controlling weeds in peanut field, vegetable field, tree field or non-cultivated land.

Description

HERBICIDE METHOD FIELD OF THE INVENTION This invention is directed to a herbicidal method. BACKGROUND OF THE INVENTION N- (7-Fluoro-3,4-dihydro-3-oxo-4-prop-2-ynyl-2H-l, 4-benzoxadin-6-yl) cyclohex-l-ene-l, 2 -dicarboxamide [Flumioxazin] is a herbicidal compound described in the US patent No. 4,640,707. Y, 1- (2-Chloroimidazo [1,2-a] pyridin-3-ylsulfonyl) -3- (4,6-dimethoxypyrimidin-2-yl) urea [Imazosulfuron] is also a herbicidal compound described in the patent of E.U.A. No .- 5, 017, -212. - In addition, it is suggested that the combination of Flumioxazin and Imazosulfuron can be used to control weeds in rice crops in WO 00/27203. BRIEF DESCRIPTION OF THE INVENTION This invention provides a method for controlling many weed species by an excellent herbicidal effect without phytotoxicity for crops. In detail, the invention provides a method for controlling weeds in a peanut crop, vegetable culture and tree growing. In addition, the invention also provides a method for controlling weeds on uncultivated land. According to the present invention, a REF .: 172350 combination of Flumioxazin and Imazosulfuron, in which the weight ratio of Flumioxazin: Imazosulfuron is 1: 0.1-20, is useful for controlling weeds in peanut crops, vegetable crops, tree crops and uncultivated land. Each of Flumioxazin and Imazosulfuron can be applied separately to weeds or to soil in a place where the weeds grow or will grow. In that case, a Flumioxazin formulation and an Imazosulfuron formulation are applied simultaneously or sequentially in general. However, Flumioxazin and Imazosulfuron are mixed and formulated normally in advance to create a herbicidal composition comprising both Flumioxazin and Imazosulfuron as active ingredients, which is applied to weeds or soil in a place where the weeds grow or grow. The composition comprising Flumioxazin and Imazosulfuron is used to effectively control many weed species in crops where crops are grown with or without tillage, such as peanut crops, vegetable crops and tree crops. In such cases, it does not cause a phytotoxicity. Significant to useful plants. In addition, it can also be used to control weeds on uncultivated land. In the composition, the mixing ratio Flumioxazin: Imazosulfuron used as active ingredients is about 1: 0.1-20, preferably about 1: 0.2-10. The composition is normally used to be formulated in emulsifiable granules, wettable powders, suspendable concentrates, granules and the like when mixing a solid carrier or a liquid vehicle and optionally a surfactant and the other auxiliaries for formulation. These formulations generally contain about 0.1 to 90% by weight, preferably about 1 to 80% by weight of total amount of Flumioxazin and Imazosulfuron. Examples of the solid carrier used to formulate the composition include clay powders and granules-fines such as kaolinite, diatomaceous earth, Fubasami clay, bentonite and alba earth; synthetic hydrated silica; talcum powder; sericite; quartz and the other inorganic minerals such as sulfur, activated carbon and calcium carbonate; and chemical fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, ammonium chloride and urea. Examples of the liquid carrier include water; alcohols such as methanol and ethanol; ketones such as acetone, ethylmethyl ketone and cyclohexanone; aromatic hydrocarbons such as toluene, xylene, ethylbezene and methylnaphthalene; non-aromatic hydrocarbons such as hexane, cyclohexane and kerosene; esters such as ethyl acetate and butyl acetate; nitriles such as acetonitrile and isobutyronitrile; ethers such as dioxane and diisopropyl ether; acidic amides such as dimethylformamide and dimethylacetamide and halogenated hydrocarbons such as dichloroethane and trichlorethylene. Examples of the surfactant used to formulate the composition include alkyl sulfate esters, alkylsulfonate salts, alkylarylsulfonate salts, alkylaryl ethers, polyoxyethylene alkylaryl ethers, polyethylene glycol ethers, polyvalent alcohol esters, and sugar alcohols. Examples of the other auxiliaries for the formulation include adhesion and dispersing agents such as casein; -jelly; polysaccharides (e.g., starch, gum arabic, cellulose derivatives, alginic acid); lignin derivatives; bentonite and synthetic water-soluble polymers (eg, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid) and stabilizers such as PAP (phosphate, isopropyl acid), BHT (2,6-tert-butyl-4-methylphenyl), BHA (2- / 3-tert-butyl-4-methoxyphenol), vegetable oil, mineral oil, fatty acid and fatty acid ester. The composition can also be prepared by mixing each formulation after formulating each of the active ingredients with the above-mentioned process. The composition obtained above can be applied as such. In addition, it can be diluted with water or the like, and then the dilution can be applied to soil or a plant. It can be expected to increase the herbicidal effect by using the composition together with another herbicide. Moreover, the composition can be used with an insecticide, fungicide, plant growth regulator, fertilizer, protector, soil improver and so forth. The dose of the composition depends on the mixing ratio of Flumioxazin and Imazosulfuron as active ingredients, environmental conditions, type of formulation, application time, method of application, place of application, weeds and target crops. The total amount of the active ingredients is usually around 1 to 1000 g per hectare. When the formulation is an emulsifiable concentrate, wettable powder, suspendable concentrate, the designated amount is usually diluted with about 100 to 2000 liters of water per hectare and applied. In addition, when the composition is applied to weeds by foliar treatment, it is expected to increase the herbicidal effect against weeds by adding an adjuvant to the dilution of the composition. In the cultivation of the vegetables of the present invention, examples of the crop include Solanaceae crops such as eggplant, tomato, green pepper and potato; Cucurbitaceae crops such as cucumber, squash, courgette, watermelon and melon; crucifera cultures such as radish, turnip, horseradish, rutabaga, Chinese cabbage, cabbage, mustard, broccoli and cauliflower; Rosaceous crops such as strawberry; compound crops such as burdock, crowned margarita, artichoke and lettuce; Liliaceae crops such as leeks, onions, garlic and asparagus; Umbelliferae crops such as carrot, parsley, celery and chivira; chenopodiaceae crops such as spinach and Swiss chard; labia cultures such as goatee, mint, basil and lavender; Convolvulaceae crops such as sweet potatoes; crops of Dioscoraceae such as sweet potato; arable crops such as taro and euphorbiaceous crops such as cassava. The cultivation of trees of the present invention may be a crop of orchard and non-fruit trees. Examples of the garden include fruits such as apple, pear (for example, pear, Japanese pear), quince (for example, quince, Chinese quince); stone fruits such as peach, plum (for example, plum, Japanese plum), nectarine, apricot (for example, apricot, Japanese apricot) and cherry; grapes; citrus fruits such as orange (for example, orange, Satsuma orange); lemon, lime and grapefruit; walnuts such as chestnut, walnut, hazel, almond, pistachio, cashew and macadamia nut; blackberries such as blueberry, blueberry, blackberry and raspberry; plate (for example, plate, plate) Japanese); FIG; medlar; olive; palm; banana; coffee; tea and mulberry. Examples of non-fruited trees include deciduous trees such as ash (Fraxinus spp.), Birch (Betula spp.), Dogwood (Cornus spp.), Poplar (Poplus spp.), Cyclamer (Cercis spp.), Wild fig (Platanus spp.) and zelkova (Zelkova spp.) And conifers such as tree of life (Thuja spp.), Fir (Abies spp.), Hemlock (Tsuga spp.), Juniper (Juniperus spp.), Pine (Pinus spp.), Spruce (Picea spp.) And yew (Taxus spp.). The cultivation of trees of the present invention can be a tree care crop, tree farm, forest and so on. Examples of the uncultivated land in the present invention include playground, vacant land, railways, parks, trailer parks, roads, dry beds, land under power transmission lines, land for housing and places to factories Examples of weeds include: Polygonaceous weeds such as Polygonum convolvulus (wild buckwheat), Polygonum lapathifolium (pale water pepper), Polygonum pensylvanicum (Pennsylvania water pepper), Polygonum persicaria (persicaria), Rumex crispus (Curly rosea) ), Rumex obtusifolius (European romaza) and Polygonum euspidetum (Japanese black centaurea); Portulacaceous weeds such as Partulaca olerácea (common purslane); Cariofilarian weeds such as Stellaria media (common alsine); Chenopodiaceous weeds such as Chenopodium album (common chenopodium) and Kochia acoparia (chamico); Amaranth weeds such as Amaranthus retroflexus (bloodthirsty amaranth) and Amaranthus hybridus (soft amaranth); Cruciferous weeds such as Raphanus raphanistrum (wild radish), Sinapis arvensis (wild mustard) and Capsella bursa-pastoris (shepherd's purse); Legume weeds such as Sesbania exal tata (hemp sesbania), Cassia obtusifolia (Obtusifolia del Senna), Desmodium tortuosum (Cuscus of Florida) and Trifolium repens (white clover); Malvaceous weeds such as Abutilon theophrasti (Alcotán) and Sida spinosa (spiny Aids); Violet weeds such as Viola arvensis (campirano thought) and Viola tricolor (wild thought); Rubiaceous weeds such as Galium aparine (presera); Convolvulaceous weeds such as Ipomoea hederacea (crucifoliar day morning glory), Ipomoea purpurea (morning glory of high day), Ipomoea hederacea var integriuscula (morning glory of whole leaf day), Ipomoea lacunose (morning glory boned) and Convolvulus ~ arvensis (correhuela campirana); Lipped weeds such as Lamium purpureum (licked purple) and Lamium amplexicaule (stinging leaf nettle); Solanaceous weeds such as Datura stramonium (chamico) and Solanum nigrum (black solano); Scrofulariaceous weeds such as Veronica persica (Veronica Persia) and Veronica hederaefolia (Veronica crucifoliar); Composite weeds such as Xanthium pensylvanicum (common claw), Helianthus annuus (common sunflower), Matricaria inodora (chamomile without aroma), Chrysanthemum segetum (corn marigold), Matricaria matricarioides (pineapple weed), Ambrosia artemisiifolia (common ragweed) ), Ambrosia trífida (giant ambrosia), Erigeron Canadensis (Canadian herigeron), Artemisia princes (Japanese sticky sagebrush) and Solidago altissima (tall goldenrod); Boraginaceous weeds such as Myosotis arvensis (forget-me-nots); Asclepiadaceous weeds such as Asclepias syriaca (common asclepiadea); Euphorbiaceous weeds such as Euphorbia helioscopia (lechetrenza) and Euphorbia maculata (mottled milk); Weedy grasses such as Echinochloa crus-galli (farmyard grass), Setaria viridis (green foxtail), Setaria faberi (giant foxtail), Digi taria sanguinalrs (southern garanchuelo), Eleusine indica (Argentina), Poa annua (annual blue grass), Alopecurus myosuroides (black grass), Avena fatus (wild oats), Sorghum halepense (Aleppo sorghum), Agropyron repens (grass), Bromus tectorum (brome villous), Cynodone dactylon ( bermuda), Panicum ^ dichotomiflorum (autumnal millet), Panicum-tezanum (Texan millet), Sorghum vulgare (splintered cane) and Lolium mul ti f forum (Italian ryegrass); Comelinaceous weeds such as Commelina communis (Asian day flower) and Commelina benghalensis (Bengali day flower); Equisetic weeds such as Eguisetum arvense (field horsetail) and Cyperaceae weeds such as Cyperus iría (rice sedge), Cyperus rotundus (purple sedge) and Cyperus esculentus (yellow sedge).

Examples Hereinafter, the present invention is explained by the examples in detail; however, the invention is not restricted by the following examples. Formulation examples of the composition for using the method of the present invention are given below. In the examples, the parts mean parts by weight.

Formulation example 1 Twenty-five parts of Flumioxazin, 25 parts of Imazosulfuron, 3 parts of calcium ligninsulfonate, 2 parts of sodium laurisulfate and 45 parts of synthetic hydrated silica are pulverized well and mixed to give a wettable powder.

Formulation example 2 Seventy parts of Flumioxazin, 14 parts of Imazosulfuron, 3 parts of calcium ligninsulfonate, 2 parts of sodium laurisulfate and 11 parts of synthetic hydrated silica are pulverized well and mixed to give a wettable powder.

Formulation Example 3 Fourteen parts of Flumioxazin, 70 parts of Imazosulfuron, 3 parts of calcium ligninsulfonate, 2 parts of sodium laurisulfate and 11 parts of synthetic hydrated silica are pulverized well and mixed to give a wettable powder.

Formulation Example 4 Ten parts of Flumioxazin, 5 parts of Imazosulfuron, 3 parts of calcium ligninsulfonate, 2 parts of sodium laurisulfate and 80 parts of synthetic hydrated silica are well sprayed and mixed to give the wettable powder.

Formulation Example 5 Twenty parts of Flumioxazin, 20 parts of _ Imazosulfurony. 3 parts of. Polyoxyethylene sorbitan monooleate, 3 parts of CMC (carboxymethylcellulose) and 54 parts of water are mixed and wet pulverized to achieve a particle diameter of 5 μ or less and give a suspendable concentrate.

Formulation Example 6 Fifty parts of Flumioxazin, 10 parts of Imazosulfuron, 3 parts of polyoxyethylene sorbitan monooleate, 3 parts of CMC (carboxymethylcellulose) and 34 parts of water are mixed and wet pulverized to achieve a particle diameter of 5 μm. less and give a suspended concentrate.

Formulation Example 7 Five parts of Flumioxazin, 25 parts of Imazosulfuron, 3 parts of polyoxyethylene sorbitan monooleate, 3 parts of CMC (carboxymethylcellulose) and 64 parts of water are mixed and wet pulverized to achieve a particle diameter of 5 μm. less and give a suspended concentrate.

Formulation example 8 Four parts of Flumioxazin, 2 parts of Imazosulfuron, 3 parts of polyoxyethylene sorbitan monooleate, 3 parts of CMC (carboxymethylcellulose) and 88 parts of water are mixed and wet pulverized to achieve a particle diameter of 5 μ or less and give a suspendable concentrate. Biological tests are given below.

Basis of evaluation The herbicidal activity is evaluated in 6 levels using the indexes from 0 to 5, that is, shown by "0", "1", "2", "3", "4" or "5", where a score of "0" means that there is no or very little difference in the degree of growth between treated plants and untreated plants at the time of observation, and a score of "5" means that the test plants die completely or that its growth is completely inhibited. The herbicidal values of "4" and "5" show excellent herbicidal activity. Phytotoxicity is evaluated in 4 levels using "no harm", "small", "medium" or "severe", where "no harm" means that no damage is found or that the damage causes practically no problems, "small" means that the damage is light but practically not permissible, "medium" means that the damage is medium and "severe" means that severe damage is found.

Test Example 1 (Test for peanut crops) Plastic pots each having a diameter of 18 cm and a depth of 14 cm were filled with high ground, and then planted with yellow sedge (Cyperus esculentus), hemp sesbania (Sesbania exal tata) and Senna obtusifolia (Cassia obtusifolia). In a greenhouse, they were cultivated for 12 days. Water dispersible granules of Flumioxazin (trade name: Valor SX, produced by Valent USA), emulsifiable concentrate of Imazosulfuron (produced by mixing well 5 parts of Imazosulfuron, 65 parts of ciciohexanone, 13 parts of Sorpol 2680 (product of Toho Chemical) and 17 parts of dimethylformamide) and a mixture of the water-dispersible granules of Flumioxazin and the emulsifiable concentrate of Imazosulfuron were independently diluted in their designated amounts with water. Each dilution was sprayed evenly over the test plants with a small sprinkler. After application, the test plants grew in the greenhouse for 7 days, and the herbicidal activity was then examined. In addition, the pots were planted with peanut (Arachis hypogea) 1 days after application, and the phytotoxicity against the crop was examined 10 days after sowing. The results are shown in table 1. Table 1 In the previous table, Ce means yellow sedge, It means hemp sesbania and Co means obtusifolia of Senna. As shown in Table 1 above, an excellent herbicidal effect was provided in the area treated with Flumioxazin and Imazosulfuron in comparison with the area treated with Flumioxazin or Imazosulfuron only. In addition, there was practically no damage that caused problems for the crop. Thus, the weeds selected from the group consisting of Cyperus spp. , Sesbania spp. and Cassia spp. can be controlled well in peanut crops by the application of Flumioxazin e-Imazosulfuron.

Test example 2 (Test for vegetable culture) Plastic pots each having a diameter of 18 cm and a depth of 14 cm were filled with high ground, and then planted with poultry grass (Echinochloa crus-galli) and onion (Allium cepa). The next day, a designated amount of Flumioxazin granules (trade name: BroadStar, produced by Valent USA), granules of Imazosulfuron (trade name: Takeoff Granule, produced by Sumitomo Chemical Takeda Agro Company) or a mixture of granules of Flumioxazin and granules Imazosulfuron was applied independently to a surface of the earth. After the application, the test plants grew for 29 days, and the herbicidal activity and phytotoxicity were then examined. The results are shown in table 2. Table 2 As shown in Table 2, an excellent herbicidal effect was provided in the area treated with the composition of the invention, as compared to the area treated with Flumioxazin or Imazosulfuron only. In addition, there was virtually no damage that caused problems for the crop. Thus, the weeds of Echinochloa sp. can be controlled well on onion crops by the application of Flumioxazin and Imazosulfuron.

Example 3 (Test for vegetable culture) Plastic pots (32 cm x 22 cm, depth: 8 cm) were filled with high soil, eggplant (Solanum melongena) and tomato (Lycopersicum esculentum) seedlings transplanted and planted later with black blast (Solanum nigrum), chamico (Datura stramonium), tail of giant fox (Setaria faber), southern garranchuelo (Digitaria sanguinalis), common alsl (Stellaria media), common chenopodium (Chenopodium album) and bloodthirsty amaranth (Amaranthus retroflexus). The next day, a designated amount of a mixture of dispersible granules in Flumioxazin water (trade name: Valor SX, produced by Valent Ü.SA) and suspended concentrates of Imazosulfuron (trade name: Sibatito 40, produced by Sumitomo Chemical Takeda Agro Company) was diluted with water and applied uniformly to a surface of the earth with a small sprinkler. After application, the test plants were allowed to grow in the greenhouse for 17 days, and the herbicidal activity and phytotoxicity were then examined. The results are shown in table 3.

Table 3 In the table above, Sn means black solano, Ds means shaman, Sf means tail of giant fox, Dg means southern garranchuelo, St means common alsine, Ca means common nodule and Ar means sanguinary amaranth. As shown in the previous results, the weeds selected from the group consisting of Solanum spp. , Datura spp. , Setaria spp. , Digi taria spp. , Stellaria spp. , Chenopodium spp. and Amaranthus spp. can be controlled well in eggplant or tomato crops by the application of Flumioxazin and Imazosulfuron.

Test example 4 (Test for vegetable crops) Plastic pots (26 cm x 19 cm, depth: 7 cm) were filled with high soil, cabbage seedlings (Brassica olerácea) were transplanted and then planted with shepherd's purse ( Capsella bursa-pastoris), wild mustard (Sinapis arvensis), giant foxtail (Setaria faber), southern crabgrass (Digi taria sanguinalis), common alsine (Stellaria media), common chenopodium (Chenopodium album) and bloodthirsty amaranth (Amaranthus - retroflexus). The next day, a designated amount of a mixture of water dispersible granules of Flumioxazin (trade name: Valor SX, produced by Valent USA) and suspended concentrates of Imazosulfuron (trade name: Sibatito 40, produced by Sumitomo Chemical Takeda Agro Company) diluted with water and applied uniformly to a surface of the earth with a small sprinkler. After application, the test plants were grown in the greenhouse for 17 days, and the herbicidal activity and phytotoxicity were then examined. The results are shown in table 4.

Table 4 In the above table, Cb means shepherd's purse, Sa means wild mustard, Sf means giant foxtail, Dg means southern crab, St means common alsine, Ca means common noodle, and Ar means bloody amaranth. As shown in the previous results, the weeds selected from the group that consists of Capsella spp. , Sinapsi s spp. , Setaria spp. , Digi taria spp. , Stellari a .spp. , Chenopodi um SPP • And Amaran thus spp. can be well controlled in cabbage cultures by the application of Flumioxazin and Imazosulfuron. Test Example 5 (Test for vegetable culture) Plastic pots each having a diameter of 18 cm and a depth of 14 'cm were filled with high ground, strawberry seedlings (Fragaria ananassa) were transplanted and then seeded with giant foxtail (Setaria faberi). The next day, a designated amount of granules of F0Lumi-? Xaz ± n (jiombxe- -comercial: BroadStar, produced by Valent U.S.A.), Imazosulfuron granules (trade name: Takeoff Granule, produced by Sumitomo Chemical Takeda Agro Company), or a mixture of Flumioxazin granules and Imazosulfuron granules was applied independently to a surface of the earth. After application, the test plants were grown for 17 days in the greenhouse, and the herbicidal activity and phytotoxicity were then examined. The results are shown in table 5.

Table 5 As shown in the previous results, the weed of Setaria sp. can be well controlled in strawberry crops by the application of Flumioxazin and Xmazosulfuron.

Test example 6 (Test for growing vegetables) Plastic pots (26 cm x 19 cm, depth: 7 cm) were filled with high soil, cucumber seedlings (Cucumis sativus), pumpkin (Cucubita moschata) and mint (Mentha spp.) were transplanted and then sown with poultry grass (Echinochloa crus-galli), southern crabgrass (Digitaria sanguinalis), common alkali (Stellaria media), bloodthirsty amaranth (Amaranthus retroflexus) and Persian veronica (Veronica persica). The next day, a designated amount of a mixture of Flumioxazin granules (trade name: BroadStar, produced by Valent U.S.A.) and granules of Imazosulfuron (trade name: Takeoff Granule, produced by Sumitomo Chemical Takeda Agro Company) was uniformly applied to a surface of the earth. After application, the test plants were grown in the greenhouse for 14 days, and the herbicidal activity and phytotoxicity were then examined. The results are shown in table 6.

Table 6 In the table above, Ec means free-range turf, Dg means Southern crabgrass, St means common alkaline, Ar bloody amaranth and Vp means Persian verona. Also, Cs means cucumber, Cm means pumpkin and Ms means mint. As shown in the previous results, weeds selected from the group consisting of Echinochloa spp. , Digi taria spp. , Stellaria spp. , Amaranthus spp. and Veronica spp. can be controlled well in cucumber crops, pumpkin or mint by applying Flumioxazin and Imazosulfuron.

Test example 7 (Test for growing trees) In the land of fruit trees where pears and aprons and orange trees grow Satsuma, a designated amount of a mixture of water dispersible granules of Flumioxazin (trade name: ValorSX, produced by Valent U.S.A.) and suspended concentrates of Imazosulfuron (trade name: Sibatito 40, produced by Sumitomo Chemical Takeda Agro Company) It was diluted with water and uniformly applied on morning glory cruciferous (Ipomoea hederacea) and field horsetail (Equisetum arvense) with a carbon dioxide sprinkler. The herbicidal activity and phytotoxicity were examined 63 days after the application. The results are shown in table 7. Table 7 In the table above, Ih means morning glory crucifoliar and Ea means field horse tail.

Test example 8 (Test for growing trees) In the greenhouse, plastic containers (46 cm x 31 cm, depth: 26 cm) were filled with high ground, peach trees were transplanted and allowed to grow, and then planted with bloodthirsty amaranth (Amaranthus retroflexus), common alkaline (Stellaria media), southern crabgrass (Digi taria sanguinalis) and annual bluegrass (Poa annua) ^ Next, a designated amount of a mixture of - Fl-umioxazin granules - (trade name: BroadStar, produced by Valent USA) and Imazosulfuron granules (trade name: Takeoff Granule, produced by Sumitomo Chemical Takeda Agro Company) was uniformly applied to a surface of the earth. The herbicidal activity and phytotoxicity were examined 23 days after the application. The results are shown in table 8. Table 8 In the table above, Ar means amaranth bloodthirsty, St means common alkaline, Dg means Southern crabgrass and Pa means bluish turf.

Test example 9 (Test for growing trees) In the greenhouse, plastic containers (46 cm x 31 cm, depth: 26 cm) were filled with high ground, grape trees were transplanted and cultivated, and then planted with bloodthirsty amaranth (Amaranthus retroflexus), common alder (Stellaria media), southern crab (Digi taria sanguinalis) and turf bluish annual (Poa annua). Then, a designated amount of a mixture of granules of -Flumioxazin (trade name: BroadStar, produced by Valent USA) and Imazosulfuron granules (trade name: Takeoff Granule, produced by Sumitomo Chemical Takeda Agro Company) was uniformly applied to a surface of the earth. The herbicidal activity and phytotoxicity were examined 23 days after the application. The results are shown in table 9. Table 9 In the table above, Ar means amaranth bloodthirsty, St means common alkaline, Dg means Southern crabgrass and Pa means bluish turf.

Test example 10 (Test for growing trees) In the greenhouse, plastic containers (46 cm x 31 cm, depth: 26 cm) were filled with high ground, chestnut trees were transplanted and allowed to grow, and then planted with bloodthirsty amaranth (Amaranthus retroflexus), common alkali (Stellaria media), southern crabgrass (Digi taria sanguinalis) and annual blue grass (Poa annua). Then, a designated amount of a mixture of Flumioxazin granules (trade name: BroadStar, produced by Valent U.S.A.) and Imazosulfuron granules (trade name: Takeoff Granule, produced by Sumitomo Chemical Takeda Agro Company) was uniformly applied to a surface of the earth. The herbicidal activity and phytotoxicity were examined 23 days after the application. The results are shown in table 10. Table 10 In the table above, Ar means amaranth bloodthirsty, St means common alkaline, Dg means Southern crabgrass and Pa means bluish turf. As shown in tables 7, 8, 9 and 10 weeds selected from the group consisting of Ipomoea spp., Equisetum spp., Amaranthus spp., Stellaria spp., Digitaria spp. and Poa spp., can be controlled well in tree crops (for example, pear, orange, peach, grape, chestnut) by the application of Flumioxazin and Imazosulfuron.

Test Example 11 (Test for uncultivated soil) A designated amount of a mixture of granules dispersible in water of Flumioxazin (trade name: ValorSX, produced by Valent USA) and suspended concentrates of Imazosulfuron (trade name: Sibatito 40, produced by Sumitomo Chemical Takeda Agro Company) was diluted with water and uniformly applied on a surface of soil and growing weeds (including common vetch (Vicia sativa), preserver (Galum aparine), Persian veronica (Veronica persica), leafy nettle (Lamium) amplexicaule) and Carolina geranium (Geranium carolinianum)) on the enguijarrada earth (approximately 10 cm) with a carbon dioxide sprinkler. The herbicidal activity is examined 20 days after the application. The results are shown in Table 11. In addition, the fresh weight of the growing weeds on the land of the designated area was measured 36 days after the application. For comparison, the fresh weight of the growing weeds was measured without the application. Furthermore, the fresh weight of the growing weeds was also measured, when the weeds had been removed by hand in place of the application. Table 11 In the table above, Vs means common vicia, Ga means presera, Vp means Persian veronica, La means nettle of hugging leaves and Gs means Carolina geranium. Table 12 As shown in Table 12, the method for controlling weeds of the present invention is effective against weeds growing in the spaces of the shrimp.

Test Example 12 (Test for uncultivated soil) Plastic pots each having a diameter of 9 cm and a depth of 7 cm were filled with high ground, and then planted with kudzu (Pueraria lobata). The next day, an unknown amount of a mixture of granules di spersabl is in Flumioxazin water (trade name-i-al: - Va-l-o-r- SX, -produced by-- Valent OR . S. TO . ) and suspended concentrates of Imazosul furon (trade name: Sibatito 40, produced by Sumitomo Chemical Takeda Agro Company) was diluted with water and applied uniformly to a surface of the earth with a small sprinkler. After application, the test plants were grown in the greenhouse for 14 days, and the herbicidal activity was then examined. The results are shown in table 13.

Table 13 As shown in Table 13, an excellent herbicidal effect was provided in the area - treated with Flumioxazin and Imazosulfuron in comparison with the area - treated with Flumioxazin or Imazosulfuron only. Thus, the kudzu weed can be well controlled in uncultivated land by the application of Flumioxazin and Imazosulfuron. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (29)

CLAIMS Having described the invention as above, the content of the following claims is claimed as property:

1. A method to control weeds in peanut crops, vegetable crops, tree crops or uncultivated land, which involves applying N- (7-fluoro-3, 4-dihydro-3-oxo-4-prop-2-inil) -2H-1, 4-benzoxadin-6-yl) cyclohex-l-ene-1,2-dicarboxamide [Flumioxazin] and 1- (2-chloroimidazo [1,2-a] pyridin-3-ylsulfonyl) -3- (4,6-dimethoxypyrimidin-2-yl) urea [Imazosulfuron], characterized in that the weight ratio of Flumioxazin: Imazosulfuron is 1: 0.1-20, separately or in combination to weeds or soil in a place where they grow or the weeds will grow.

2. The method characterized by pergo is to control weeds in peanut crops in accordance with claim 1.

3. The method for controlling weeds in peanut crops according to claim 2, characterized in that the weeds are selected from the group which consists of Cyperus spp. , Sesbania spp. and Cassia spp.

4. The method characterized in that it is for controlling weeds in vegetable crops according to claim 1.

5. The method for controlling weeds according to claim 4, characterized in that the vegetable is onion.

6. The method for controlling weeds in onion crops according to claim 5, characterized in that the weed is Echinochloa sp. The method for controlling weeds according to claim 4, characterized in that the vegetable is eggplant. 8. The method for controlling weeds in eggplant crops according to claim 7, characterized in that the weeds are selected from the group consisting of Solanum spp. , Datura spp. , Setaria spp. , Digitaria spp. , Stellaria spp. , Chenopodium spp. and Amaranthus spp. 9. The method for controlling weeds according to claim 4, characterized in that the vegetable is tomato. 10. The method for controlling weeds in tomato crops according to claim 9, characterized in that the weeds are selected from the group consisting of Solanum spp. , Datura spp. , Setaria spp. , Digitaria spp. , Stellaria spp. , Chenopodium spp. Y Amaranthus spp. 11. The method for controlling weeds according to claim 4, characterized in that the vegetable is col. 12. The method for controlling weeds in cabbage crops according to claim 11, characterized in that the weeds are selected from the group consisting of Capsella spp. , Sinapis spp. , Setaria spp. , Digi taria spp. , Stellaria spp. , Chenopodium spp. and Amaranthus spp. 13. The method for controlling weeds according to claim 4, characterized in that the vegetable is strawberry. The method for controlling weeds in strawberry crops according to claim 13, characterized in that the weed is Setaria sp. 15. The method for controlling weeds according to claim 4, characterized in that the vegetable is cucumber. 16. The method for controlling weeds in cucumber crops according to claim 15, characterized in that the weeds are selected from the group consisting of Echinochloa spp. , Digi taria spp. , Stellaria spp. , Amaranthus spp. and Veronica spp. 1

7. The method to control weeds of according to claim 4, characterized in that the vegetable is pumpkin. 1

8. The method for controlling weeds in pumpkin crops according to claim 17, 5 characterized in that the weeds are selected from the group consisting of Echinochloa spp. , Digitaria spp. , Stellaria spp. , Amaranthus spp. and Veronica spp. 1

9. The method for controlling weeds according to claim 4, characterized in that the 10 vegetable is mint. 20. The method for controlling weeds in pepper cultures according to claim 19, characterized in that the weeds are selected from the group consisting of Echinochloa spp. , Digi taria spp. , 15 Stellaria spp. , Amaranthus spp. and Veronica spp. 21. The method characterized in that it is for controlling weeds in tree crops according to claim 1. 22. The method for controlling weeds in tree crops according to claim 21, characterized in that the weeds are selected from the group consisting of Ipomoea spp. ,, Equisetum spp. , Amaranthus spp. , Stellaria spp. , Digi taria spp. and Poa spp. 23. The method for controlling weeds of -25 in accordance with claim 21 or 22, characterized because the cultivation of trees is a cultivation of pear trees. 24 The method for controlling weeds according to claim 21 or 22, characterized in that the cultivation of trees is a crop of orange trees. 25. The method for controlling confounded weeds with claim 21 or 22, characterized in that the cultivation of trees is a cultivation of peach trees. 26. The method for controlling weeds according to claim 21 or 22, characterized in that the cultivation of trees is a cultivation of grape trees. 27. The method for controlling weeds according to claim 21 or 22, characterized in that the cultivation of trees is a cultivation of walnuts. 28 The method characterized in that it is for controlling weeds in uncultivated land according to claim 1. 29. Use of a combination of N- (7-f luoro-3, 4-dihydro-3 -oxo-4-prop-2) -inyl-2H-l, 4-benzoxadin-6-yl) cyclohex-l-ene-l, 2-dicarboxamide [Flumioxazin] and l- (2-chloroimidazo [1,2- a] pyridin-3-ylsulfonyl) - 8- (4,6-dimethoxypyrimidin-2-yl) urea [Imazosulfuron], wherein the weight ratio of Flumioxazin: Imazosulfuron is 1: 0. 1 -20, as active ingredients to control weeds in peanut crops, vegetable crops, tree crops or uncultivated land.