KR20040035801A - Herbicidal composition - Google Patents

Abstract

The present invention provides oxadiargyl, oxadione, pentazamide, ethoxysulfuron, quinclolac, pyrazolate, amikabazone, bromobutide, carpentrazone (-ethyl ), Pyrazolate, pyraflufen (-ethyl), sulfentrazone, tefraloxydim, clodinapop-propargyl, pretilachlor, butachlor, oxazilomepon, pentrazamide, benzobicyclone, Molinate, Quinclolac, Ventazone, Pyrazolylate, Pentoxazone, Metamipov, Sinosulfuron, Imazozulfuron, Pyrazulfuron (-ethyl), Azimsulfuron, Bensulfuron (-methyl), Tria From the group consisting of sulfuron, prosulfuron, halosulfuron (-methyl), sulfomethuron (-methyl), sulfosulfuron, chlorimuron (-ethyl), cyclosulfuron, tritosulfuron and iodosulfuron A mixture of two or more compounds selected as an active ingredient It relates to herbicidal compositions.

Description

Herbicide composition

The present invention relates to novel synergistic herbicide compositions comprising a herbicidal active ingredient combination suitable for selective control of weeds in useful crops such as rice.

The invention also relates to methods of controlling weeds in useful crops and to the use of the novel compositions for this purpose.

Compound oxadiargyl, oxadione, pentrazamide, ethoxysulfuron, quinclolac, pyrazolate, amicarbazone, bromobutide, carpentrazone (-ethyl), pyrazolate, pyraflufen ( -Ethyl), sulfentrazone, tefraloxydim, clodinapop-propargyl, pretilachlor, butachlor, oxazilomepon, pentrasamide, benzobicyclone, molinate, quinchlorac, ventazone, Pyrazolylate, pentoxazone, cynosulfuron, imazosulfuron, pyrazosulfuron (-ethyl), azisulfuron, bensulfuron (-methyl), triasulfuron, prosulfuron, halosulfuron (-methyl) , Sulfomethuron (-methyl), sulfosulfuron, chlorimuron (-ethyl), cyclosulfuron, tritosulfuron and iodosulfuron are described, for example, in The Pesticide Manual, 12th Edition, BCPC , 2000, as shown in herbicide activity. The herbicidal activity of metamipov is known, for example, from WO 00/05956.

Surprisingly, according to the present invention, a combination of two or more of the above-mentioned active ingredients in a synergistic manner is capable of controlling the majority of weeds before and after germination occurring in particularly useful crops without incurring any significant damage to useful plants. Was found to be active

Thus, in accordance with the present invention, together with conventional inert formulation auxiliaries, oxadiargyl, oxadione, pentrazamide, ethoxysulfuron, quinclolac, pyrazolate, amicarbazone, bromobutide, carpent Lazone (-ethyl), pyrazolate, pyrafluphene (-ethyl), sulfentrazone, tefraloxydim, clodinapop-propargyl, pretilachlor, butachlor, oxazilomepon, pentrazamide, Benzobicyclone, molinate, quinclolac, bentazone, pyrazolylate, pentoxazone, metamipop, cynosulfuron, imazosulfuron, pyrazosulfuron (-ethyl), azisulfuron, bensulfuron (- Methyl), triasulfuron, prosulfuron, halosulfuron (-methyl), sulfomethuron (-methyl), sulfosulfuron, chlorimuron (-ethyl), cyclosulfamuron, tritosulfuron and iodosulfuron Activate a mixture of two or more compounds selected from the group consisting of The novel herbicidal composition for selective weed control is proposed that includes a.

Very surprisingly, the combinations of the above-mentioned active ingredients according to the present invention in principle exceed the anticipated action on the weeds to be controlled, thus in particular expanding the range of action of the two active ingredients in two aspects: Application rates are reduced while good levels of action are maintained, and secondly, the compositions according to the invention achieve a high level of herbicidal control even when individual substances are useless from a cropping point of view in the low application range. The result is that the range of weeds is considerably broadened, and the selectivity with respect to useful crops is further increased, which is essential and desirable for unintentionally overdose of the active ingredient. The composition according to the invention allows for greater adaptability in later crops while maintaining excellent control of weeds in useful crops.

The composition according to the present invention is the genus, genus, mud, nap, fluff, grasshopper, needle needles, needles, pikeweed, Syrian mare, Rottboellia, Brachiaria, river It can be used against a large number of crops of important crops, such as genus, genus, genus, satin, satin, lizard and sweet potato. The composition according to the invention is suitable for all application methods commonly used in agriculture, for example pre-emergence application, post-emergence application and seed dreesing. The composition according to the invention is particularly suitable for controlling weeds in rice. "Useful crops" will be understood to include all crops that are resistant to herbicides or herbicides as a result of conventional breeding or genetic engineering.

Compositions according to the invention comprise the active ingredient in any mixing ratio, but typically comprise one ingredient in excess of the other. The preferred mixing ratio of the active ingredient is 10: 1 to 1:10, preferably 5: 1 to 1: 5, in particular 1: 1.

The following active ingredient combinations have proven to be very particularly effective compositions: ethoxysulfuron + oxadione, ethoxysulfuron + oxadiargyl, ethoxysulfuron + oxaziclomepon, ethoxysulfuron + pentrazamide and ethoxy Facility Furon + Queen Cloak. Further preferred herbicide compositions according to the invention include the following combinations: pentrazamide + oxadione, pentrazamide + oxadiargyl, pentrazamide + oxazilomepon, oxadiargyl + oxadione , Oxadiargyl + oxazilomethone, oxadiargyl + quincloloc, oxadizone + oxazilomefon, oxadizone + quinclolock, oxazodichrome + quinclolac, pyrazolate + Oxadiazone, pyrazolate + oxadiargyl, pyrazolate + oxazilomethone, pyrazolate + pentrasamide, pyrazolate + quinclolac, metamipov + clodinapop-propargyl, meta Mipor + pretilachlor, metamipov + butachlor, metamipov + oxazilomefon, metamipop + pentrazamide, metamipop + bromobutide, metamipop + benzobicyclone, metamipop + Molinate, Metamipo Ph + Quinclolac, Metamipov + Ventazone, or Metamipov + Clodinafop-propargyl, Metamipop + Pretilachlor, Metamipov + Butachlor, Metamipop + Oxaziclomefon, Meta Mipov + pentrazamide, metamipov + bromobutide, metamipop + benzobicyclone, metamipop + molinate, metamipop + quinclolac, metamipop + ventazone and cynosulfuron, forehead Zosulfuron, pyrazosulfuron (-ethyl), azisulsulfuron, bensulfuron (-methyl), triasulfuron, prosulfuron, halosulfuron (-methyl), sulfomethuron (-methyl), sulfosulfuron, One urea selected from chlorimuron (-ethyl), cyclosulfuron, tritosulfuron, iodosulfuron and bensulfuron or mixtures with multiple ureas,

Or metamipov, carfentrazone, benzobicyclo, boromobutide, amicabazone, clodinapop-propargyl, pretilachlor, butachlor, oxazilomepon, pentrazamide, bromobutide, benzo Compounds selected from bicyclones, molinates, quinclolac, and bentazone with cynosulfuron, imazosulfuron, pyrazosulfuron (-ethyl), azimsulfuron, bensulfuron (-methyl), triasulfuron, prosulfuron Urea or a plurality of ureas selected from halosulfuron (-methyl), sulfomethuron (-methyl), sulfosulfuron, chlorimuron (-ethyl), cyclosulfamuron, tritosulfuron and iodosulfuron Mixture.

Application rates can vary within wide limits and include the nature of the soil, the method of application (prior or post-germination; seed dressing; application to sowing bone; no tillage application), crops, weeds to be controlled, the main climatic conditions and methods of application, It depends on the time of application and other factors which depend on the target crop. The active ingredient mixture according to the invention is generally applicable as a ratio of 0.1 to 3.0 kg of the active ingredient mixture per hectare (ha).

The active ingredients used according to the invention can be used in unmodified form, i.e. obtained synthetically. However, preferably such active ingredients are auxiliaries commonly used in formulation technology, such as solvents, solid carriers or surfactants, as described in WO 97/34483, pp. 9-13. Together with conventional formulations, for example, in emulsifiable concentrates, direct sprayable or dilutable solutions, wettable powders, soluble powders, powders, granules or microcapsules. Depending on the nature of the composition, the method of application, such as spraying, spraying, dusting, wetting, spraying or pouring, is selected to suit the intended purpose and the main environment. Formulations, ie media, preparations or compositions comprising the mixtures according to the invention and optionally one or more solid or liquid formulation auxiliaries in a manner known per se, for example, the active ingredient and formulation aids, for example Prepared by intimate mixing and / or grinding of the solvent or solid carrier. In addition, a surfactant compound (surfactant) may be used in the preparation of the formulation.

Examples of solvents and solid carriers are described, for example, on page 6 of WO 97/34485. Depending on the nature of the active ingredient to be formulated, suitable surfactant compounds are nonionic, cationic and / or anionic surfactants and surfactant mixtures with good emulsifying, dispersing and wetting properties. Examples of suitable anionic, nonionic and cationic surfactants are listed, for example, on pages 7 and 8 of WO 97/34485. It is also commonly used in formulation technology, in particular, see, "McCutcheon's Detergents and Emulsifiers Annual", MC Publishing Corp., Ridgewood New Jersey, 1981, Stache, H., "Tensid-Taschenbuch", Carl Hanser Verlag, Munich / Vienna, 1981; M. and J. Ash, "Encyclopedia of Surfactants", Vol. Surfactants described in I-III, Chemical Publishing Co., New York, 1980-81 are also suitable for the preparation of herbicide compositions according to the invention.

Herbicide formulations generally contain from 0.1 to 99% by weight of the active ingredient mixture, in particular from 0.1 to 95% by weight, from 1 to 99.9% by weight of solid or liquid formulation auxiliaries and from 0 to 25% by weight, in particular from 0.1 to 25% by weight.

Commercial products are generally formulated as concentrates, but end users will generally use diluted formulations. The compositions may also be stabilizers such as vegetable oils or epoxidized vegetable oils (epoxidized coconut oil, rapeseed oil or soybean oil), antifoaming agents (e.g. silicone oils), preservatives, viscosity modifiers, binders, thickeners and also fertilizers. It may include additional ingredients or other active ingredients. Preferred formulations in particular have the following composition:

Emulsifiable Concentrate:

Active ingredient mixture: 1 to 90% by weight, preferably 5 to 20% by weight

Surfactant: 1 to 30% by weight, preferably 10 to 20% by weight

Liquid carrier: 5 to 94% by weight, preferably 70 to 85% by weight

Powder:

Active ingredient mixture: 0.1 to 10% by weight, preferably 0.1 to 5% by weight

Solid carrier: 99.9 to 90% by weight, preferably 99.9 to 99% by weight

Suspension Concentrate:

Active ingredient mixture: 5 to 75% by weight, preferably 10 to 50% by weight

Water: 94 to 24% by weight, preferably 88 to 30% by weight

Surfactant: 1 to 40% by weight, preferably 2 to 30% by weight

Wettable Powder:

Active ingredient mixture: 0.5 to 90% by weight, preferably 1 to 80% by weight

Surfactant: 0.5 to 20% by weight, preferably 1 to 15% by weight

Solid carrier: 5 to 95% by weight, preferably 15 to 90% by weight

Granules:

Active ingredient mixture: 0.1 to 30% by weight, preferably 0.1 to 15% by weight

Solid carrier: 99.5 to 70% by weight, preferably 97 to 85% by weight

The following examples further illustrate the invention but do not limit it.

F1. Emulsifiable concentrate a) b) c) d)

Active ingredient mixture 5% by weight 10% by weight 25% by weight 50% by weight

Calcium Dodecylbenzenesulfonate 6% by weight 8% by weight 6% by weight 8% by weight

Castor oil polyglycol ether 4% by weight-4% by weight 4% by weight

(36 mol of ethylene oxide)

Octylphenol polyglycol ether-4 wt%-2 wt%

(Ethylene oxide 7-8 mol)

Cyclohexanone--10% by weight 20% by weight

C ₉ -C ₁₂ aromatic hydrocarbon mixture 85% by weight 78% by weight 55% by weight 16% by weight

Emulsions of any desired concentration can be obtained by diluting this concentrate with water.

F2. Solution a) b) c) d)

Active ingredient mixture 5% by weight 10% by weight 50% by weight 90% by weight

1-methoxy-3- (3-methoxy--20 wt% 20 wt%-

Propoxy) -propane

Polyethylene glycol (molecular weight 400) 20% by weight 10% by weight--

N-methyl-2-pyrrolidone--30% by weight 10% by weight

Aromatic hydrocarbon mixture of C ₉ -C ₁₂ 75% by weight 60% by weight--

The solution is suitable for use in microdrop form.

F3. Wettable powder a) b) c) d)

5% by weight 25% by weight 50% by weight 80% by weight of active ingredient mixture

Sodium lignosulfonate 4% by weight-3% by weight-

Sodium Lauryl Sulfate 2% by weight 3% by weight-4% by weight

Sodium Diisobutylnaphthalene-6% by weight 5% by weight 6% by weight

Sulfonate

Octylphenol Polyglycol Ether-1% by weight 2% by weight-

(Ethylene oxide 7-8 mol)

Highly disperse silicic acid 1% by weight 3% by weight 5% by weight 10% by weight

Kaolin 88% 62% 35%-

The active ingredient is thoroughly mixed with the adjuvant and the mixture is thoroughly milled in a suitable mill and diluted with water to give a wettable powder which can produce a suspension of the desired concentration.

F4. Coated granules a) b) c)

Active ingredient mixture 0.1% by weight 5% by weight 15% by weight

High Dispersion Silicate 0.9% by weight 2% by weight 2% by weight

Inorganic Carrier 99.0% by weight 93% by weight 83% by weight

(0.1-1 mm in diameter, eg CaCO ₃ or SiO ₂ )

The active ingredient is dissolved in methylene chloride and sprayed to apply to the carrier, and then the solvent is evaporated off in vacuo.

F5. Coated granules a) b) c)

Active ingredient mixture 0.1% by weight 5% by weight 15% by weight

Polyethylene glycol (molecular weight 200) 1.0% by weight 2% by weight 3% by weight

High Dispersion Silicate 0.9% by weight 1% by weight 2% by weight

Inorganic Carrier 98.0% by weight 92% by weight 80% by weight

(0.1-1 mm in diameter, eg CaCO ₃ or SiO ₂ )

The finely divided active ingredient is applied evenly to the carrier moistened with polyethylene glycol in a mixer. In this way dust-free coated granules are obtained.

F6. Extruded granules a) b) c) d)

Active ingredient mixture 0.1 wt% 3 wt% 5 wt% 15 wt%

Sodium lignosulfonate 1.5% by weight 2% by weight 3% by weight 4% by weight

Carboxymethylcellulose 1.4% by weight 2% by weight 2% by weight 2% by weight

Kaolin 97.0% by weight 93% by weight 90% by weight 79% by weight

The active ingredient is mixed with the adjuvant and ground, and the mixture is wetted with water. The mixture is extruded and then dried in an air stream.

F7. Powder a) b) c)

0.1% by weight 1% by weight 5% by weight of active ingredient mixture

Talc 39.9% by weight 49% by weight 35% by weight

Kaolin 60.0% by weight 50% by weight 60% by weight

Ready-to-use powders are obtained by mixing the active ingredient with the carrier and grinding the mixture in a suitable mill.

F8. Suspension concentrate a) b) c) d)

Active ingredient mixture 3% by weight 10% by weight 25% by weight 50% by weight

Ethylene glycol 5% by weight 5% by weight 5% by weight 5% by weight

Nonylphenol Polyglycol Ether-1% by weight 2% by weight-

(15 mol of ethylene oxide)

Sodium lignosulfonate 3% by weight 3% by weight 4% by weight 5% by weight

Carboxymethyl cellulose 1% by weight 1% by weight 1% by weight 1% by weight

37% by weight aqueous formaldehyde 0.2% by weight 0.2% by weight 0.2% by weight 0.2% by weight

solution

Silicone Oil Latex 0.8 wt% 0.8 wt% 0.8 wt% 0.8 wt%

Water 87% 79% 79% 62% 38%

The finely divided active ingredient can be intimately mixed with the adjuvant to obtain a suspension concentrate which can be diluted with water to obtain a suspension of any desired concentration.

It is more often practical to formulate the active ingredient mixtures according to the invention separately and to be in the form of “tank mixtures” in water at the desired mixing ratio in the sparger just before application.

Biological Example

Example B1 Pre-germination Test:

Test plants are sown in pots under greenhouse conditions. Standard soil is used as the cultivation substrate. At the stage of germination, herbicides are applied to the surface of the soil alone and as a mixture. Application rates are controlled by optimal concentrations measured under paddy or greenhouse conditions. The test is evaluated 2 to 4 weeks after application (100% action = complete death of the plant, 0% action = no phytotoxic action). The mixture used in this test shows good results.

Example B2 Post- Germination Tests:

Test plants are grown to post-application steps in pots under greenhouse conditions. Standard soil is used as the cultivation substrate. In the post germination stage, herbicides are applied to the surface of the soil alone and as a mixture. Application rates are controlled by optimal concentrations measured under paddy or greenhouse conditions. The test is evaluated 2 to 4 weeks after application (100% action = complete death of the plant, 0% action = no phytotoxic action). The mixture used in this test shows good results.

Claims (3)

In combination with conventional inert formulation auxiliaries, oxadiargyl, oxadione, pentrasamide, ethoxysulfuron, quinclolac, pyrazolate, amikabazone, bromobutide, carpentrazone (-ethyl), pyra Solates, pyraflufen (-ethyl), sulfentrazone, tefraloxydim, clodinapop-propargyl, pretilachlor, butachlor, oxazilomepon, pentrazamide, benzobicyclone, molinate, Quinclolac, bentazone, pyrazolylate, pentoxazone, metamipov, cynosulfuron, imazosulfuron, pyrazosulfuron (-ethyl), azisulsulfuron, bensulfuron (-methyl), triasulfuron, Two selected from the group consisting of prosulfuron, halosulfuron (-methyl), sulfomethuron (-methyl), sulfosulfuron, chlorimuron (-ethyl), cyclosulfuron, tritosulfuron and iodosulfuron Synergistic comprising a mixture of the above compounds as an active ingredient Choje composition. A method for controlling undesirable plant growth in useful crops, including allowing the herbicidally effective amount of the composition according to claim 1 to act on the useful crop or its habitat. The method of claim 2, wherein the useful crop is rice.