KR20070089813A - Herbicidal composition - Google Patents

Abstract

The present invention relates to a novel herbicidal synergistic composition comprising a herbicidal active ingredient combination that is preferably suitable for the selective control of weeds (grasses and broad-leaved weeds) in crops of useful plants and in particular ALS-resistant weeds and ACCase-resistant in crops of useful plants, for example in crops of rice and cereals. A herbicidal composition comprising c) pyriftalid, and d) metamifop.

Description

Herbicide composition

The present invention is preferably used for the selective control of undesired plants such as weeds (grass and broadleaf weeds) in useful plant crops, and especially ALS-resistant weeds and ACCase-resistant weeds in useful plant crops such as rice and cereals. A novel herbicidal composition exhibiting synergy comprising a suitable herbicidal active ingredient combination.

The present invention also relates to a method of controlling weeds defined as unwanted plants in useful plant crops and to the use of novel compositions that act in places to control, eg, undesired plants or their habitats.

The present invention relates to a place where the composition is to be controlled, for example, to an undesired plant or its habitat (i) before the development of an undesired plant (before germination), and (ii) after the development of an undesired plant (germination After), or (iii) both before (i) germination and (ii) after germination, the use of a novel composition for controlling undesired plants.

Compounds pyridphthalide 704, tralcoxidim 811 and metamipop 520 and soil-acceptable salts thereof are described, for example, in The e-Pesticide Manual, version 3.1, 13th Edition, Ed. Herbicidal action as described in CDC Tomlin, British Crop Protection Council, 2004-2005.

Surprisingly, combinations of variable amounts of pyriphthalide with one or more lipid synthesis inhibitors such as cyclohexanedione such as tralcoxysid or aryloxyphenoxy-propionate such as metamipop are particularly useful Most of the weeds (grass and broadleaf weeds) arising from plant crops are removed before and after germination of ALS-resistant weeds and ACCase-resistant weeds in particularly useful plant crops, such as rice or grain crops, without significant damage to useful plants. It has been found to exhibit synergistic effects that can be controlled in the following.

Thus, according to the present invention, novel herbicide compositions for selectively controlling weeds comprising a mixture of a) pyridphthalide and b) metamipov as active ingredients are proposed.

In another aspect, the present invention also relates to a novel herbicide composition for selective control of weeds comprising as a active ingredient a mixture of a) pyridphthalide and b) tralcoxide.

Combinations of these active ingredients exceed the originally expected additive effects on the weeds to be controlled, and thus, in particular, firstly, the application rate of the individual compounds is reduced while maintaining good levels of action, and secondly, the compositions according to the invention It is also surprising that the range of action of the two active ingredients is extended in two respects: achieving high weed control levels even when individual substances are rendered useless in soil terms at low levels of application. This result is essential and desirable when unintentionally overdosing the active ingredient, significantly expanding the activity of the weeds and further increasing the selectivity for useful plant crops. The composition according to the invention maintains good weed control in useful plant crops and also has great adaptability in subsequent crops.

The composition according to the invention comprises the active ingredient described above in any mixing ratio, but generally comprises one component in excess of the other components. Preferred mixing ratios of the active ingredients are from 5: 1 to 1: 5. The most preferred mixing ratio of the active ingredients is 2: 1 to 1: 2.

The composition according to the invention comprises the active ingredient described above in any mixing ratio, but usually contains one ingredient in excess of the remaining ingredients.

The rate of application can also be varied within a wide range, including the nature of the soil, the method of application (before or after germination, seed dressing, application to sowing bone, no tillage application, etc.), crop plants, to be controlled. It depends on the weeds or grasses, effective weather conditions, and other factors controlled by the method of application, the specific time of application and the target crop. The active ingredient mixtures according to the invention can generally be applied in a proportion of 0.05 to 2 kg of a mixture of active ingredients per ha, preferably in a proportion of 0.1 to 1 kg of a mixture of active ingredients per ha. The invention also relates to a method for selectively controlling grass and weeds in a useful plant crop, comprising treating the useful plant or the area under cultivation or its habitat with the composition according to the invention at the same time or at different times.

Useful plant crops in which the composition according to the invention can be used comprise especially rice. The term "crop" is also understood to include crops that have become resistant to herbicides or herbicide types (eg ALS, GS, EPSPS, PPO and HPPD inhibitors) as a result of conventional breeding or genetic engineering methods. . An example of a crop that has become resistant to imidazolinone, for example Imagoma, by conventional breeding methods is Clearfield ^® summer plains (canola). An example of a have a resistance to herbicides by genetic engineering methods crops include, for example, trade names RoundupReady ^® and glyphosate are marketed as LibertyLink ^® - include and glufosinate-resistant maize species. Weeds to be controlled are both monocotyledonous and dicotyledonous weeds, for example Stellaria , Nasturtium , Agrostis , Digitaria , Digina , Avena , Setaria ( Setaria ), Sinapis , Lolium , Solanum , Echinochloa , Scirpus and in particular Scirpus juncoides , Mono Monochoria , Sagittaria , Bromus , Alopecurus , Sorghum , Rottboellia , Cyperus , especially Cyperus Cyperus iria , Abutilon , Sida , Xanthium , Amaranthus , Chenopodium , Ipomoea , Chrysanthemum , Gal Solarium (Galium), viola (viola) and Veronica (Veronica) may be.

Crops also become resistant to harmful insects by genetic engineering methods, such as Bt corn (resistance to European lightworm moths), Bt cotton (resistance to cotton weevil) and also Bt potatoes (Colorado leaf beetle). Resistance to). An example of Bt maize is the Bt-176 maize hybrid from NK ^® (Syngenta Seeds). Bt toxin is a protein naturally formed by Bacillus thuringiensis soil bacteria. Toxins and transgenic plants capable of synthesizing such toxins include EP-A 451 878, EP-A 374 753, WO 93/07278, WO 95/34656, International Published in WO 03/052073 and EP-A 427 529. Examples of transgenic plants containing one or more genes encoding insecticidal resistance and expressing one or more toxins include KnockOut ^® (corn), Yield Gard ^® (corn), NuCOTIN33B ^® (cotton), Bollgard ^® (cotton), NewLeaf ^® (potato), NatureGard ^® and Protexcta ^® . Plant crops and their seed material may be resistant to herbicides and at the same time to insect breeding (resulting in “duplicate” gene introduction). Seeds may, for example, have the ability to express pesticidally active Cry3 proteins and at the same time be glyphosate resistant. The term “crop” is also understood to include crops obtained as a result of conventional breeding or genetic engineering methods containing so-called production properties (eg, increased flavor, storage stability, nutrient content).

The area under cultivation is understood to include land in which crop plants are already growing and land for cultivating these crop plants.

The composition according to the invention can be used in an unmodified form. However, compositions according to the present invention can generally be formulated in a number of ways using formulation aids such as carriers, solvents and surface active materials. The formulations can be in various physical forms, for example, fine powders, gels, wettable powders, water dispersible granules, water dispersible tablets, effervescent compressed tablets, emulsifiable concentrates, microemulsifiable concentrates, oil-in-water emulsions, oil oils Animals, aqueous dispersions, oily dispersions, suspoemulsions, capsule suspensions, emulsifiable granules, soluble liquids, water soluble concentrates (including water or water miscible organic solvents as carriers), impregnated polymer films or And other forms known from the Manual on Development and Use of FAO Specifications for Plant Protection Products, 5th Edition, 1999. Such formulations may be used directly or diluted immediately prior to use. Diluted formulations can be prepared using, for example, water, liquid fertilizers, micronutrients, biological organisms, oils or solvents.

Such formulations can be prepared, for example, by mixing the active ingredient with a formulation aid to obtain the composition in the form of finely divided solids, granules, solutions, dispersions or emulsions. The active ingredient may also be formulated with other auxiliaries such as finely divided solids, mineral oils, vegetable oils, modified vegetable oils, organic solvents, water, surface active substances or combinations thereof. The active ingredient may also be contained in very fine microcapsules consisting of polymers. Microcapsules contain the active ingredient in a porous carrier. This allows the active ingredients to be released (eg sustained release) in controlled amounts to their surroundings. The diameter of the microcapsules is generally 0.1 to 500 mu m. They contain the active ingredient in an amount of about 25 to 95% by weight, based on the weight of the capsule. The active ingredient may be present in the form of a single crystalline solid, in the form of fine particles in a solid or liquid dispersion or in the form of a suitable solution. Encapsulated membranes are, for example, natural and synthetic rubbers, cellulose, styrene-butadiene copolymers, polyacrylonitrile, polyacrylates, polyesters, polyamides, polyureas, polyurethanes or chemically modified polymers and starch xane Tate or other polymers known to those skilled in the art. Alternatively, very fine microcapsules may be formed in which the active ingredient is in the form of finely divided particles in a solid matrix of the base material, in which case the microcapsules are not encapsulated.

Formulation aids suitable for the preparation of the compositions according to the invention are known per se. As liquid carriers, water, toluene, xylene, petroleum ether, vegetable oils, acetone, methyl ethyl ketone, cyclohexanone, acid anhydride, acetonitrile, acetophenone, amyl acetate, 2-butanone, butylene carbonate, chlorobenzene , Cyclohexane, cyclohexanol, alkyl esters of acetic acid, diacetone alcohol, 1,2-dichloropropane, diethanolamine, p-diethylbenzene, diethylene glycol, diethylene glycol abietate, diethylene glycol butyl ether , Diethylene glycol ethyl ether, diethylene glycol methyl ether, N, N-dimethylformamide, dimethyl sulfoxide, 1,4-dioxane, dipropylene glycol, dipropylene glycol methyl ether, dipropylene glycol dibenzoate, di Proxtol, alkylpyrrolidone, ethyl acetate, 2-ethyl hexanol, ethylene carbonate, 1,1,1-trichloroethane, 2-heptanone, alpha-pinene, d-limonene, at Tyl lactate, ethylene glycol, ethylene glycol butyl ether, ethylene glycol methyl ether, gamma-butyrolactone, glycerol, glycerol acetate, glycerol diacetate, glycerol triacetate, hexadecane, hexylene glycol, isoamyl acetate, isobornyl Acetate, isooctane, isophorone, isopropylbenzene, isopropyl myristate, lactic acid, laurylamine, mesityl oxide, methoxypropanol, methyl isoamyl ketone, methyl isobutyl ketone, methyl laurate, methyl octanoate, methyl Oleate, methylene chloride, m-xylene, n-hexane, n-octylamine, octadecanoic acid, octylamine acetate, oleic acid, oleylamine, o-xylene, phenol, polyethylene glycol (PEG 400), propionic acid, Propyl lactate, propylene carbonate, propylene glycol, propylene glycol methyl ether, p-xylene, toluene , Triethyl phosphate, triethylene glycol, xylenesulfonic acid, paraffin, mineral oil, trichloroethylene, perchloroethylene, ethyl acetate, amyl acetate, butyl acetate, propylene glycol methyl ether, diethylene glycol methyl ether, methanol, ethanol, isopropanol And high molecular weight alcohols such as amyl alcohol, tetrahydrofurfuryl alcohol, hexanol, octanol, ethylene glycol, propylene glycol, glycerol, N-methyl-2-pyrrolidone and the like. Water is generally the carrier of choice for dilution of the concentrate. Suitable solid carriers are, for example, talc, titanium dioxide, feldspar clay, silica, attapulgite clay, diatomaceous earth, limestone, calcium carbonate, bentonite, calcium montmorillonite, cottonseed husk, wholemeal, soybean flour, pumice, Wood flour, walnut shells, lignin and, for example, CFR 180.1001. (c) & (d)].

Many surface active materials can advantageously be used in both solid and liquid formulations, in particular formulations which can be diluted with a carrier immediately before use. Surface active materials may be anionic, cationic, nonionic or polymeric, which may be used for emulsifiers, wetting agents or suspending agents or for other purposes. Typical surface active materials include, for example, salts of alkyl sulfates such as diethanolammonium lauryl sulfate; Salts of alkylarylsulfonates such as calcium dodecylbenzenesulfonate; Alkylphenol-alkylene oxide addition products such as nonylphenol ethoxylates; Alcohol-alkylene oxide addition products, such as tridecyl alcohol ethoxylate; Soaps such as sodium stearate; Salts of alkylnaphthalenesulfonates such as sodium dibutylnaphthalenesulfonate; Dialkyl esters of sulfosuccinate salts such as sodium di (2-ethylhexyl) sulfosuccinate; Sorbitol esters such as sorbitol oleate; Quaternary amines such as lauryl trimethylammonium chloride, polyethylene glycol esters of fatty acids such as polyethylene glycol stearate; Block copolymers of ethylene oxide and propylene oxide; Salts of mono- and di-alkyl phosphate esters; And further materials described in "McCutcheon's Detergents and Emulsifiers Annual", MC Publishing Corp., Ridgewood, New Jersey, 1981.

Further auxiliaries that can generally be used in pesticide formulations are crystallization inhibitors, viscosity modifiers, suspending agents, dyes, antioxidants, blowing agents, light absorbers, mixing aids, antifoams, complexing agents, neutralizing or pH-modifying substances and buffers, Corrosion inhibitors, fragrances, wetting agents, absorption enhancers, micronutrients, plasticizers, glidants, lubricants, dispersants, thickeners, antifreezes, fungicides and liquid and solid fertilizers.

The formulation may also comprise additional active substances, for example additional herbicides, herbicide softeners, plant growth regulators, fungicides or pesticides.

The composition according to the invention may further comprise additives comprising oils of vegetable or animal origin, mineral oils, alkyl esters of such oils or mixtures of such oils and oil derivatives. The amount of oil additive used in the composition according to the invention is generally from 0.01 to 10%, based on the spray mixture. For example, the oil additive may be added to the spray tank at the desired concentration after preparing the spray mixture. Preferred oil additives are mineral or vegetable origin oils such as rapeseed oil, olive oil or sunflower oil, emulsified vegetable oils such as AMIGO ^® (Rhone-Poulenc Canada Inc.), alkyl esters of plant origin oils, For example, methyl derivatives, or oils of animal origin, such as fish oil or bovine oil. Preferred additives contain, for example, as active ingredients essentially 80% by weight of alkyl esters of fish oil and 15% by weight of methylated rapeseed oil, and 5% by weight of conventional emulsifiers and pH modifiers. Particularly preferred oil additives are alkyl esters of C ₈ -C ₂₂ fatty acids, in particular methyl derivatives of C ₁₂ -C ₁₈ fatty acids, for example methyl esters of lauric acid, palmitic acid and oleic acid, each of which is Known as methyl laurate (CAS-111-82-0), methyl palmitate (CAS-112-39-0) and methyl oleate (CAS-112-62-9). Preferred fatty acid methyl ester derivatives are Emery ^® 2230 or 2231 (Cognis GmbH). These and other oil derivatives are also known from the Compendium of Herbicide Adjuvants, 5th Edition, Southern Illinois University, 2000.

The application and action of these oil additives can be further enhanced by mixing them with surface active materials, for example nonionic, anionic or cationic surfactants. Suitable anionic, nonionic and cationic surfactants are listed on pages 7 and 8 of WO 97/34485. Preferred surface active substances are anionic surfactants of the dodecylbenzylsulfonate type, in particular their calcium salts, and nonionic surfactants of the fatty alcohol ethoxylate type. Particular preference is given to ethoxylated C ₁₂ -C ₂₂ fatty alcohols having an ethoxylation degree of 5 to 40. An example of a commercially available surfactant is Genapol types (Clariant AG). Silicone surfactants, especially polyalkyl commercially available as Silwet L-77 ^® - oxide - a modified hepta methyl trisiloxane, and perfluorinated surfactants are also preferred. The concentration of the surface active substance relative to the total additive is generally 1 to 30% by weight. Examples of oil additives consisting of oils or mineral oils or mixtures of derivatives and surfactants thereof are Edenor ME SU ^® , Turbocharge ^® (Syngenta AG, CH) and Actipron ^® (BP Oil UK Limited, GB).

The above surface active materials may be used alone in the formulation, ie without oil additives.

In addition, the addition of an organic solvent to the oil additive / surfactant mixture may further enhance the action. Suitable solvents are, for example, Solvesso ^® (ESSO) and Aromatic Solvent ^® (Exxon Corporation). The concentration of such solvent may be 10 to 80% by weight of the total weight. These oil additives, which may be mixtures with solvents, are described, for example, in US Pat. No. 4,834,908. Commercially available oil additives described in this document are known under the name MERGE ^® (BASF Corporation). A further oil additive preferred according to the invention is SCORE ^® (Syngenta Crop Protection Canada).

In addition to the oil additives listed above, in order to enhance the activity of the compositions according to the invention, formulations of alkylpyrrolidones such as Agrimax ^® can also be added to the spray mixture. Formulations of synthetic latexes such as polyacrylamides, polyvinyl compounds or poly-1-p-mentenes such as Bond ^® , Courier ^® or Emerald ^® may also be used. Solutions containing propionic acid, for example Eurogkem Pen-e-trate ^® , can also be mixed into the spray mixture as an activity enhancer.

Such herbicide formulations generally comprise from 1 to 99.9% by weight of a formulation aid comprising from 0.1 to 99% by weight, in particular from 0.1 to 95% by weight, and preferably from 0 to 25% by weight of the surfactant substance, of the active ingredient mixture of the composition according to the invention. It includes. Commercially available products can preferably be formulated as concentrates and end users usually using diluents. Preferred formulations have the following composition in particular: (% = weight percent; "active ingredient mixture" is a mixture of compounds according to the composition of the invention):

Emulsifiable Concentrate:

Active ingredient mixture: 1 to 95%, preferably 60 to 90%

Surfactant: 1 to 30%, preferably 5 to 20%

Liquid carrier: residual amount

Dust:

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

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

Suspension Concentrate:

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

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

Water: remaining amount

Wettable Powder:

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

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

Solid carrier: residual amount

Entering:

Active ingredient mixture: 0.1 to 30%, preferably 0.5 to 15%

Solid carrier: 99.9 to 70%, preferably 99.5 to 85%

The following examples illustrate the invention but not to limit it.

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

Active ingredient mixture 5% 10% 25% 50%

Calcium Dodecylbenzene-Sulfonate 6% 8% 6% 8%

Castor Oil Polyglycol Ether 4%-4% 4%

(36 mol of ethylene oxide)

Octylphenol polyglycol ether-4%-2%

(Ethylene oxide 7-8 mol)

NMP--10% 20%

Aromatic Hydrocarbon Mixture C ₉ -C ₁₂ 85% 78% 55% 16%

An emulsion of the desired concentration can be prepared by diluting the concentrate with water.

F2. Solution a) b) c) d)

Active ingredient mixture 5% 10 50% 90%

1-methoxy-3- (3-methoxy-propoxy) -propane-20% 20%-

Polyethylene Glycol MW 400 20% 10%--

NMP--30% 10%

Aromatic Hydrocarbon Mixture C ₉ -C ₁₂ 75% 60%--

It is suitable to apply the solution in the form of microdroplets.

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

Active ingredient mixture 5% 25% 50% 80%

Sodium Lignosulfonate 4%-3%-

Sodium Lauryl Sulfate 2% 3%-4%

Sodium Diisobutylnaphthalene-Sulfonate-6% 5% 6%

Octylphenol Polyglycol Ether-1% 2%-

(Ethylene oxide 7-8 mol)

Highly dispersible silicic acid 1% 3% 5% 10%

Kaolin 88% 62% 35%-

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

F4. Coating granules a) b) c)

Active ingredient mixture 0.1% 5% 15%

Highly dispersible silicic acid 0.9% 2% 2%

Inorganic Carrier 99.0% 93% 83%

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

The active ingredient is dissolved in methylene chloride, the solution is sprayed onto the carrier and the solvent is then evaporated in vacuo.

F5. Coating granules a) b) c)

Active ingredient mixture 0.1% 5% 15%

Polyethylene Glycol MW 200 1.0% 2% 3%

Highly dispersible silicic acid 0.9% 1% 2%

Inorganic Carrier 98.0% 92% 80%

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

The finely divided active component is applied evenly to the carrier moistened with polyethylene glycol in a mixer. Non-pulverized coated granules are obtained in this way.

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

Active ingredient mixture 0.1% 3% 5% 15%

Sodium Lignosulfonate 1.5% 2% 3% 4%

Carboxymethylcellulose 1.4% 2% 2% 2%

Kaolin 97.0% 93% 90% 79%

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

F7. Fine powder a) b) c)

Active ingredient mixture 0.1% 1% 5%

Talc 39.9% 49% 35%

Kaolin 60.0% 50% 60%

Ready-to-use fine 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% 10% 25% 50%

Ethylene Glycol 5% 5% 5% 5%

Nonylphenol Polyglycol Ether-1% 2%-

(15 mol of ethylene oxide)

Sodium Lignosulfonate 3% 3% 4% 5%

Carboxymethylcellulose 1% 1% 1% 1%

37% formaldehyde aqueous solution 0.2% 0.2% 0.2% 0.2%

Silicone Oil Emulsion 0.8% 0.8% 0.8% 0.8%

Water 87% 79% 62% 38%

The finely divided active ingredient was thoroughly mixed with the adjuvant to obtain a suspension concentrate which can be prepared by diluting the suspension of the desired concentration with water.

It is often more practical to formulate the compounds present in the compositions according to the invention individually and then mix them in the applicator in the form of a "tank mixture" in the form of a "tank mixture" immediately before application.

Biological Example

A synergistic effect is present whenever, for example, the action of the active ingredient combinations of the compounds according to the compositions of the invention exceeds the sum of the actions of the active ingredients applied individually.

The expected herbicidal action for a given combination of two herbicides (A) and (B) can be calculated as follows: COLBY, SR, "Calculating synergistic and antagonistic response of herbicide combinations", Weeds 15, pages 20 -22, 1967):

Where

X is the herbicidal rate (%) when treated with Compound (A) at an application rate of pkg per ha, compared to the untreated control (= 0%),

Y is the herbicidal rate (%) when treated with Compound (B) at an application rate of qkg per ha compared to the untreated control.

Thus, if the observed activity exceeds the value expected from Colby's formula, there is a synergy.

The synergistic effect of the composition of the present invention is shown in the following examples.

Example B1 Pre-germination Test:

The test plants are sown in seed trays under greenhouse conditions. Standard soil is used as the culture substrate. In the pre-germination stage, herbicides are applied to the surface of the soil, alone and in mixtures. The application rate depends on the optimum concentration which is determined under field or greenhouse conditions. The test is evaluated after 2 to 4 weeks (100% = complete death of the plant; 0% = no phytotoxic effect on the plant).

The test compound shows good results.

Example B2 Post- Germination Tests:

The field test is carried out with the surface fixed on the saturated surface under about 5 cm of water (saturation conditions). In the post germination stage (2 to 3 leaf stages), herbicides are applied to the test plants using a back spray alone and in a surface state hydrated in a mixture. The application rate depends on the final concentration expected under field conditions. Tests are assessed after 10-22 days (100% action = plant dies completely; 0% action = no phytotoxic action). The mixture used in this test shows good results.

Post-germination herbicidal action of the composition according to the invention comprising pyriphthalide and metamipop at 10 days after application (10 DAA) Application rate (g / ha) % Damage to Cyperus Iria Expectations according to Colby Pyriphthalide 16 0 - Metamipov 13 0 - Pyriphthalide + Metamipov 16 + 13 70 0

Post-germination herbicidal action of the composition according to the invention comprising pyriphthalide and metamipop at 10 days after application (10 DAA) Application rate (g / ha) % Damage to Skirpus Juncoides Expectations according to Colby Pyriphthalide 16 0 - Metamipov 13 50 - Pyriphthalide + Metamipov 16 + 13 60 50

Post-germination herbicidal action of the composition according to the invention comprising pyriphthalide and metamipope at 21 days after application (21 DAA) Application rate (g / ha) % Damage to Cyperus Iria Expectations according to Colby Pyriphthalide 16 0 - Metamipov 13 0 - Pyriphthalide + Metamipov 16 + 13 50 0

Post-germination herbicidal action of the composition according to the invention comprising pyriphthalide and metamipope at 21 days after application (21 DAA) Application rate (g / ha) % Damage to Cyperus Iria Expectations according to Colby Pyriphthalide 16 0 - Metamipov 13 0 - Pyriphthalide + Metamipov 16 + 13 20 0

Claims (6)

A herbicide composition comprising a) pyriphthalide and b) metamipope. A method of controlling an undesired plant in a useful plant crop, including acting at a place where the herbicidally effective amount of the composition according to claim 1 is to be controlled. The method of claim 2, wherein the undesired plant is ALS-resistant weeds. The method of claim 2, wherein the undesired plant is ACCase-resistant weeds. The method according to any one of claims 2 to 4, wherein the plant crops are rice and cereals. (I) before the development of an undesired plant (before germination), (ii) after the development of an undesired plant (after germination), or (iii) (i) at the place where the composition according to claim 1 is to be controlled. Use of a composition according to claim 1 for controlling undesired plants, including application before both germination and (ii) after germination.