Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
  • A01N41/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom not containing sulfur-to-oxygen bonds, e.g. polysulfides
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
  • A01N35/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen
  • A01N35/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen containing a carbon-to-nitrogen double bond
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
  • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
  • A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
  • A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles

Definitions

• the present invention relates to the field of herbicidal compositions.
• the invention will find its application mainly in the field of treatment and elimination of plants considered to be harmful for certain crops.
• the invention relates to a herbicidal composition
• a herbicidal composition comprising mainly two active compounds.
• the first of these compounds consists of a compound belonging to the family of aryloxyphenoxypropionates and the second compound belongs to the family of cyclohexanediones.
• herbicides are defined as active substances or preparations used to control weeds or "weeds”.
• selective herbicides are used. These advantageously allow to promote the control of weeds while not preventing the growth of the plant that is cultivated.
• weed in the following description, a plant that accidentally colonizes a territory without having been deliberately sown, for example an undesirable plant species, present in a field of cultivation of another plant species.
• the presence of weeds in a crop is more or less harmful to the latter, mainly because of the effects of competition with the cultivated plant, for example with respect to water, light, or mineral elements. present in the soil.
• An adventitious plant can be an uncultivated plant that settles in a field of a plant voluntarily cultivated by a farmer, or a regrowth of a previous crop, such as a grain regrowth in a rapeseed crop.
• a weed plant can consist of an annual plant, which lives only for one season, or a perennial, that is to say that lives more than one annual cycle.
• compositions incorporate, in general, at least one active ingredient, traditionally constituted by a chemical molecule, and having herbicidal properties against at least one adventitious plant.
• Patent document WO 2004/080171 describes examples of such herbicidal compositions.
• herbicidal compositions comprising a component belonging to the family of aryloxyphenoxypropionates, also called FOPs, as active ingredient.
• compositions in which the active ingredient consists of a chemical molecule belonging to the family of cyclohexanediones are also known.
• herbicidal composition which incorporates, on the one hand, an aryloxyphenoxypropionate, quizalofop-p-ethyl and, on the other hand, a cyclohexanedione, clethodim.
• this composition quizalofop-p-ethyl and clethodim are introduced in equivalent proportions.
• said composition comprises 10.5% by weight of quizalofop-p-ethyl and 10.5% by weight of clethodim, each of these compounds being present at a concentration of 100 g / l.
• the ratio of quizalofop-p-ethyl to clethodim is 1: 1, which means that the two active constituents of the composition are present in equivalent concentrations.
• it has been demonstrated by the applicant that such a ratio does not make it possible to obtain optimal properties in terms of efficiency and spectrum of action.
• No. 5,629,262 which discloses a method for controlling grasses in crops, in which two acetyl coA carboxylase inhibitors are applied.
• These inhibitors may be products belonging to the family of cyclohexanediones, such as sethoxydim, clethodim or caloxydim.
• the invention offers the possibility of overcoming the various drawbacks of the state of the art by providing a herbicidal composition having a particularly advantageous efficacy in the treatment of weeds.
• the present herbicidal composition promotes the control of these weeds with respect to the compositions known in the state of the art.
• said composition has a broad spectrum of effectiveness, and, therefore, allows to effectively treat and control many undesirable plants, while not preventing the cultivation of plants that we actually want to see develop .
• the present invention relates to a herbicidal composition
• a herbicidal composition comprising at least a first compound belonging to the family of aryloxyphenoxypropionates and at least one second compound belonging to the family of cyclohexanediones, said composition being characterized in that the first compound and the second compound are present in said composition in a ratio varying from 1: 1.5 to 1: 4, or 1: 1.5 to 1: 3, or 1: 1.5 to 1: 2.5 or 1: 1.75 to 1: 2.25, or 1: 1.8 to 1: 2.2 .
• the amount of said second compound in the composition is 1.5 to 4 times, or 1.5 to 3 times, or 1.5 to 2.5 times, or 1.75 to 2.25 times, or 1 to 8 to 2.2 times greater than the amount of said first compound.
• the proportion of the first compound is from 31.2 to 35.7%, and the proportion of second compound in said composition is from 64.3 to 68.8%.
• the ratio between the first compound belonging to the family of aryloxyphenoxypropionates and the second compound belonging to the family of cyclohexanediones is of the order of 1: 2.
• the amount of said second compound, a cyclohexanedione, in the composition according to the invention is twice as large as the quantity of said first compound, an aryloxyphenoxypropionate, the proportion first compound in said composition being of the order of 33, 3% and the proportion of second compound in said composition being of the order of 66.7%.
• the first compound belonging to the family of aryloxyphenoxypropionates is chosen from quizalofop-p-ethyl, haloxyfop, propaquizafop, quizalofop-p-tefuryl, fluazifop-p-butyl and fenoxaprop-p-ethyl, the isomers of these compounds and the salts of these compounds.
• the second compound, belonging to the family of cyclohexanediones is concerned, it is advantageously chosen from clethodim, cycloxydim and tepraloxydim, the isomers of these compounds and the salts of these compounds.
• the compound belonging to the family of aryloxyphenoxypropionates is quizalofop-p-ethyl and the compound belonging to the family of cyclohexanediones is clethodim.
• the mass concentration of the first compound belonging to the family of aryloxyphenoxypropionates varies from 65.6 to 75 g / l of composition and in which the mass concentration of the second compound belonging to the family of cyclohexanediones varies from 135 to 144. , 4 g / L of composition.
• the mass concentration of the first compound belonging to the family of aryloxyphenoxypropionates is 70 g / l of composition and in which the mass concentration of the second compound belonging to the family of cyclohexanediones is 140 g / l of composition.
• the invention also relates to a method for controlling at least one adventitious plant, capable of developing in a cultivation field of a plant to be cultivated, with the composition according to the invention comprising at least one first compound belonging to the family. aryloxyphenoxypropionates and at least one second compound belonging to the family of cyclohexanediones.
• 0.2 to 1.5 L, or 0.5 to 0.8 L, of said composition is diluted in a total volume of 50 to 300 L of a suitable aqueous solution and this volume is applied. total of said composition per hectare of the field.
• the application rate of said first compound is from 13.1 to 112.5 g / ha of field while the rate of application of said second compound is from 27 to 216.6 g / ha.
• the application rate of said first compound is 32.8 to 60 g / ha of field, or 35 to 56 g / ha
• the application rate of said second compound is 67.5 to 115.5 g / ha or 70 to 112 g / ha.
• said composition prior to the step of applying the herbicidal composition at said field, said composition is mixed with an adjuvant oil.
• the invention also relates to a use of the present herbicidal composition for the control of at least one weed plant belonging to the family Gramineae.
• said composition can be used for the removal of annual bluegrass (Poa annua) and / or quackgrass (Elytrigia repens) and / or bromine (Bromus sp.) And / or regrowth of cereals, especially regrowths.
• the herbicidal composition is used in the treatment of a dicotyledonous culture.
• this crop is selected from rapeseed (Brassica napus), beet (Beta vulgaris), protein pea (Pisum sativum), sunflower (Helianthus annuus), flax (Linum usitatissimum), soybean (Glycine max) , alfalfa (Medicago sativa).
• the present invention relates to a particular herbicidal composition.
• This composition essentially comprises at least two active ingredients which will make it possible to control unwanted weeds.
• composition incorporates, on the one hand, at least one first compound belonging to the family of aryloxyphenoxypropionates, the compounds of this family being also called FOPs, or FOP compounds in the following description.
• the herbicidal composition according to the invention comprises at least, also, a second compound belonging to the family of cyclohexanediones, the compounds of this family being also called DIMs in the following description.
• the present composition comprises a plurality of compounds belonging to the family of aryloxyphenoxypropionates, and several compounds belonging to the family of cyclohexanediones.
• the composition comprises a compound belonging to the family of aryloxyphenoxypropionates, and a compound belonging to the family of cyclohexanediones.
• the composition comprises only, as active substances, a compound belonging to the family of aryloxyphenoxypropionates, and a compound belonging to the family of cyclohexanediones.
• the ratio between the FOP family compound and the DIM family compound can vary from a ratio of 1: 1.5 to a ratio of 1: 4, or from a ratio of 1: 1.8 to a ratio of 1: 2.2.
• the compound of the family of DIMs is present in a larger quantity than the compound belonging to the family of FOPs.
• the term "quantity" in this specification refers to the mass of a pure compound, in grams (g), present in the herbicidal composition of the invention. It is therefore the mass, in g, of DIM compound and FOP compound.
• a compound of the DIM family may be present in an amount 1.5 times greater than the amount of FOP compound within the herbicidal composition, when the ratio of the FOP compound to the DIM compound is 1: 1, 5. Consequently, the proportions of active substances in the composition may advantageously be 40% by weight of FOP compound and 60% by weight of DIM compound, or 35.7% by weight of FOP compound and 64.3% by weight of DIM compound in some embodiments.
• the amount of DIM compound can be up to 2.2 times or up to 4 times the amount of FOP compound.
• the ratio between the compound FOP and the compound DIM is 1: 2.2 or 1: 4 and the composition comprises, as a proportion of active substances, 31.2% by weight of the FOP compound and 68.8% by mass of compound DIM or 20% by weight of compound FOP and 80% by weight of compound DIM.
• the ratio between the compound belonging to the family of aryloxyphenoxypropionates and the compound belonging to the family of cyclohexanediones is of the order of 1: 2, or equal to 1: 2.
• the amount of DIM compound in the herbicidal composition is 2 times greater than the amount of aryloxyphenoxypropionate compounds.
• the herbicidal composition of the invention may comprise, in proportion of active substances, of the order of 33.3% by weight of FOP compound on the one hand, and of the order of 66.7% by weight. % by weight of DIM compound on the other hand.
• the mass concentration of DIM compound within said composition is 140 g / L of the latter.
• the compound belonging to the family of aryloxyphenoxypropionates is then present in a mass concentration of 70 g / l of the composition.
• biomass concentration is meant the mass (in g) of a compound, either the compound FOP or the compound DIM, in a volume equal to 1 L of herbicidal composition.
• a liter of herbicidal composition according to the invention therefore comprises, on the one hand, a quantity of pure 70 g FOP compound and, on the other hand, a quantity of 140 gm pure compound, which corresponds to a ratio between these compounds. from 1: 2.
• the mass concentration of compound DIM can vary from 50 to 840 g / l or from 135 to 144.4 g / l.
• the mass concentration of aryloxyphenoxypropionates it can then advantageously vary from 35 to 210 g / l or from 65.6 to 75 g / l.
• the ratio between the aryloxyphenoxypropionate compound and the DIM compound must be 1: 1.5 to 1: 4 or in the range of 1: 1.8 to 1: 2.2, this ratio being equal to about 1: 2 in certain embodiments, as already mentioned above.
• the compound belonging to the family of aryloxyphenoxypropionates, or FOPs included in the composition according to the invention, it may advantageously be chosen from the following molecules: quizalofop-p-ethyl, haloxyfop, propaquizafop, quizalofop-p-tefuryl, fluazifop-p-butyl and fenoxaprop-p-ethyl.
• This compound may also be chosen from the isomers or salts of the compounds quizalofop-p-ethyl, haloxyfop, propaquizafop, quizalofop-p-tefuryl, fluazifop-p-butyl and fenoxaprop-p-ethyl.
• the herbicidal composition according to the invention may also incorporate several compounds belonging to the family of aryloxyphenoxypropionates, as mentioned above, for example two of these compounds see more.
• the ratio between the compounds belonging to the family of aryloxyphenoxypropionates and the compound DIM varies from 1: 1.5 to 1: 4, or from 1: 1.8 to 1: 2.2 in certain cases.
• Haloxyfop is a herbicidal chemical substance of the formula C 15 H 11 CIF 3 NO 4 . It is also called haloxyfop-P or haloxyfop-.
• Propaquizafop has the empirical formula C 22 H 22 CIN 3 O 5 .
• Fluazifop-p-butyl has the formula Ci 9 H 2 OF 3 N0 4 and is generally hydrolysed to fluazifop- ⁇ once absorbed by the plant to be treated. There is also fluazifop-butyl, which is hydrolyzed to fluazifop once absorbed into the plant.
• Fenoxyprop-p-ethyl has the empirical formula Ci 8 H 6 ClNO 5 . These compounds are active on annual and perennial plants.
• the compound retained in the herbicidal composition is quizalofop-ethyl.
• This chemical compound corresponds to a phytosanitary substance having a gross formula C 19 H 17 CIN 2 O 4 .
• Quizalofop-p-ethyl is absorbed by the plant on which the composition according to the invention is applied, generally by spraying.
• the chemical compound is then conveyed, via the sap, to the growth zones of said plant, in particular leaves, stem or roots. In these areas, the compound disrupts their development, resulting in the arrest of growth and propagation of this plant.
• all the compounds belonging to the chemical family of FOPs act, especially at the level of the growth zones, by inhibiting the lipid synthesis pathways of the plants to be eliminated, and more particularly the enzyme acetyl-coenzyme A carboxylase that intervenes in these pathways.
• the compound belonging to the family of cyclohexanediones it is advantageously chosen from clethodim, cycloxydim and tepraloxydim.
• This compound may also be chosen from the isomers or salts of the compounds clethodim, cycloxydim and tepraloxydim.
• this compound consists of clethodim.
• the herbicidal composition according to the invention comprises quizalofop-p-ethyl and clethodim in ratios, percentages and concentrations as defined above.
• Clethodim is a chemical compound belonging to the family of cyclohexanediones and corresponds to an active substance having a herbicidal effect.
• the crude formula of clethodim is C 17 H 26 CINO 3 S.
• Clethodim may be the only active substance in certain herbicidal compositions known in the state of the art.
• crops such as rapeseed or pea crops, may be susceptible to this substance.
• the plant that is actually desired to grow is likely to suffer some damage during the treatment of the crop, which is undesirable.
• clethodim The mode of action of clethodim is based on the inhibition of fatty acid synthesis in plants.
• plant fatty acids are essential for the integrity of cell membranes, as well as for the growth of new plants.
• clethodim acts by inhibiting acetyl-coenzyme A carboxylase (or ACCase), which corresponds to the second enzyme involved in the synthesis route, on the one hand, fatty acids and, on the other hand, flavonoids. .
• the herbicidal composition according to the invention makes it possible to propose a product having a high and very complete efficacy on all the weed species considered to be weeds harmful to crops. Moreover, said composition allows an effective treatment of both annual weeds and perennial weeds.
• the herbicidal composition that has been developed consists of a tool allowing the control of resistant plant species that are difficult and even impossible to eradicate. Said composition can also help to fight against the appearance of resistances.
• the present invention also relates to a method for controlling at least one adventitious plant, which is indifferently annual or perennial, capable of spreading in a field of culture of another plant species, which is it , actively cultivated.
• the method of controlling said adventitious plant is by means of the herbicidal composition according to the invention and the formulation of which has been detailed above, which composition is applied at the field of culture.
• the composition used in the weed control method comprises quizalofop-p-ethyl and clethodim in a ratio varying from 1: 1.5 to 1: 4, or from 1: 1.8 to 1: 2,2; this ratio being 1: 2 in some embodiments.
• said composition is applied by spraying it at the level of the field on which the growth and propagation of the weeds are to be controlled.
• said composition is applied post-emergence at the level of the weeds to be treated, that is to say that the composition is applied between the moment when the young plant emerges from the ground and the moment when it reaches maturity.
• the herbicidal composition according to the invention is applied in a volume of 0.2 to 1.5 L per hectare (ha) of field to be treated. In some embodiments, this volume to be applied is between 0.5 and 0.8 L / ha.
• the application rate of the first compound belonging to the family of FOPs ranges from 8.5 to 315 g / ha of field, or from 13.1 to 112, 5 g / ha of field, according to the mass concentration of FOP compound which has been recalled previously.
• this rate of application of the compound belonging to the FOP family ranges from 17 to 170 g / ha, or from 32 to 60 g / ha. According to other possibilities, the application rate of FOP compound ranges from 35 to 56 g / ha.
• the rate of application of the compound belonging to the family of DIMs, and consisting advantageously of clethodim ranges from 13 to 1260 g / ha of field, or from 27 to 216.6 g / ha. or at some 26 to 670 g / ha, or 67.5 to 115.5 g / ha, depending on the mass concentration of clethodim mentioned above. In a particular embodiment, this rate ranges from 70 to 112 g / ha.
• the aryloxyphenoxypropionate compound is applied for values ranging from 10 to 30 g / ha of field and the cyclohexanedione compound is applied for values ranging from 20 to 60 g / ha.
• the aryloxyphenoxypropionate compound can also be used at a rate of 14 g / ha and the cyclohexanedione compound at a rate of 28 g / ha.
• the aryloxyphenoxypropionate compound can also be used at a rate of 24.5 g / ha and the cyclohexanedione compound at a rate of 49 g / ha.
• the invention also relates to a use of the herbicidal composition in which the aryloxyphenoxypropionate compound is applied at a level of between 10 and 30 g / ha and wherein the cyclohexanedione compound is applied at a rate of between 20 and 60 g / ha.
• the use of the herbicidal composition is carried out with the aryloxyphenoxypropionate compound applied at a rate of 14 g / ha and the cyclohexanedione compound applied at a rate of 28 g / ha.
• the invention relates to a use of the herbicidal composition so that the aryloxyphenoxypropionate compound is applied at a rate of 24.5 g / ha and the cyclohexanedione compound is applied at a rate of 49 g / ha. Ha.
• a total volume of at least 50 L / ha of field is advantageously applied, in some cases ranging from 150 to 300 L / ha and in some cases from 200 to 250 L / ha of field.
• the herbicidal composition is diluted in a total volume as indicated in the previous paragraph.
• said herbicidal composition is diluted in an aqueous solution, comprising at least water, and may consist for example of an aqueous emulsion.
• the aqueous solution may comprise other constituents, for example a stabilizing compound and / or a surfactant, and the like.
• the total volume applied to the culture may also comprise, in addition to the herbicidal composition and the aqueous solution, other components.
• the composition may be mixed with at least one adjuvant oil, which is likely to increase the effectiveness of the herbicidal composition.
• a volume ranging from 0.2 to 1.5 L of composition or from 0.5 to 0.8 L of composition is mixed with a volume of about 1.0 L of oil. adjuvant for one hectare of field, before completing with the aqueous solution, to arrive at a total volume between 50 and 300 L / ha of said field.
• the adjuvant oil that can be mixed with the herbicidal composition of the invention can be of any type.
• it may be either an oil of plant origin, or an oil derived from petroleum or an animal oil.
• a vegetable adjuvant oil may preferably consist of an esterified rapeseed oil marketed under the trade name Actirob®B 1.0.
• Actirob®B 1.0 is hereinafter referred to as "Actirob”.
• an oil derived from petroleum this may be, for example, a paraffinic mineral oil.
• the herbicidal composition according to the present invention is particularly effective for the control and elimination of weeds belonging to the family Gramineae (or Gramineae).
• the plants of this family can also be called Poaceae (or Poaceae).
• Grasses are herbaceous, annual or perennial, and this family includes a large number of species.
• cereals grown such as corn, wheat, barley, etc. belong to the Gramineae family. Cereals can, indeed, prove to be undesirable in certain fields of culture, in particular when a field was used, at first, to the culture of a species of cereals, and that it is then destined to receive another crop.
• Unwanted regrowth of cereals may then be susceptible to development and, as a result, compete with the crop variety.
• the herbicidal composition according to the invention can be used in order to eliminate at least one adventitious plant chosen from the following weeds: annual bluegrass (Poa annua), quackgrass (Elytrigia repens), broccoli ( Bromus sp.), Volunteer cereals, and especially regrowth of common wheat (Triticum aestivum) and / or barley (Hordeum vulgare), ryegrass (Lolium sp.), Field foxtail (Alopecurus myosuro ⁇ des), the crabgrass (Digitaria sanguinalis), the barnyard grass (Echinochloa crus-galli), the panicum millet (Panicum miliaceum), the foxtail (Setaria sp.), the sorghum of Aleppo (Sorghum halepense).
• weeds annual bluegrass (Poa annua), quackgrass (Elytrigia repens), broccoli ( Bromus sp.), Volunteer cereals, and especially
• composition is used to control any other type of weeds belonging in particular to the Gramineae family.
• the herbicidal composition according to the invention makes it possible to treat a wide range of undesirable plant species that are likely to develop and spread in a crop of a given plant, thus slowing the growth of the latter.
• the herbicidal composition according to the invention can be used for the treatment of a wide variety of plants that are cultivated voluntarily.
• composition is advantageously used to treat dicotyledonous crop fields.
• the composition may make it possible to control the development of at least one adventitious plant in a dicotyledonous crop chosen from rapeseed (Brassica napus), beet (Beta vulgaris), protein pea (Pisum satlvum), sunflower (Helianthus). annuus), flax (Linum usitatissimum), soybean (Glycine max), alfalfa (Medicago sativa).
• numeric values are often presented as ranges of values throughout this document.
• the ranges of values are used primarily for convenience and brevity and should not be construed as a strict limitation of the scope of the invention.
• a range of values expressly includes all possible subdomains and all the individual numeric values included in that range, and any numerical values or numeric ranges including integers included in these ranges or sub-ranges. domains, as well as fractions of said numerical values or integers within these ranges, unless the context specifically indicates otherwise. This applies in all cases to the entire range of values and in all contexts throughout this application. So, for example, a range of 40-60% includes 41-59%, 42-58%, 43-57%, 41-58%, 41-57%, 41-56%, 41-55%, 41- 54%, 41- 53%, and so on.
• ratio series includes combinations of the top and bottom ratios to provide ratios in the form of a range of values. This construction applies in all cases to the entire range of values of the ratios and in all contexts throughout the present application.
• the present invention is generally disclosed hereinafter using affirmative language to describe the many embodiments.
• the invention also specifically includes embodiments in which a particular object is excluded, in whole or in part, for example substances or materials, method steps and conditions, protocols, procedures, tests or analyzes.
• Example 1 Test of the effectiveness of the herbicide composition on ryegrass Tests have been conducted to show the effectiveness of the herbicidal composition according to the invention on an adventitious plant called ryegrass. This plant, also called multiflorid ryegrass or Italian ryegrass (Lolium multlflorum) is traditionally considered a weed.
• composition was tested on different plots of rapeseed (OSR for Oilseed rape, Brassica napus).
• the results corresponding to the damage caused by the various compounds that were tested are expressed as percentage of weeds eliminated, from 0 to 100% compared to a control plot at which no herbicide treatment was applied.
• the value 0 corresponds to no damage observed on the weeds while the value 100 corresponds to an elimination of all the weeds.
• composition identified ALSNC10HCLQ01 0.8 corresponds to the herbicidal composition according to the invention.
• This composition ALSNC10HCLQ01 0.8 comprises quizalofop-p-ethyl and clethodim, these two compounds being present in the composition in a ratio of 1: 2.
• said herbicidal composition ALSNC10HCLQ01 0.8 has a mass concentration of 70 g / L in quizalofop-p-ethyl and a mass concentration of 140 g / L in clethodim.
• Quizalofop-p-ethyl and fluazifop-p-butyl belong to the family of aryloxyphenoxypropionates. 1.2 L of quizalofop-p-ethyl per hectare and 1.5 L of fluazifop-p-butyl per hectare were respectively applied.
• Formulations comprising quizalofop-p-ethyl and clethodim in a 1: 1 ratio are commonly referred to as Q + C 1: 1 in the examples.
• quizalofop-p-ethyl and clethodim are incorporated in equal proportions.
• the ratio of quizalofop-p-ethyl to clethodim is 1: 1.
• compositions ALSNC10HCLQ01 0.8, Q + C 1: 1 (0.4 - 0.5 liter per hectare) and quizalofop-p-ethyl (1.2 liter per hectare) that were tested were diluted, prior to their preparation. application in 1 L of an adjuvant oil (Actirob).
• the herbicidal composition according to the invention also makes it possible to more effectively control the weed tested, namely ryegrass, than Q + C 1: 1.
• the herbicidal composition has an average efficiency of 92.7% while the Q + C 1: 1 has an average efficiency of the order of 83.3%.
• composition according to the invention showed an improved efficiency compared to the various other products that were tested in parallel.
• the modification of the ratio between the two active molecules in the herbicidal composition of the invention makes it possible to improve the effectiveness of said composition in the treatment of ryegrass.
• Example 2 Test of the effectiveness of the herbicide composition on the foxtail
• Tests have also been conducted to show the effectiveness of the herbicidal composition according to the invention on a second adventitious plant called foxtail. This annual plant is traditionally considered a weed in cultivated fields.
• the cultures on which the composition was tested consist either of beet crops, (beet for sugar beet, Beta vulgaris) or rapeseed (OS for oilseed rape, Brassica napus.
• the herbicidal composition according to the invention identified in the above table ALSNCIOHCLQOI, has the same clethodim and quizalofop-p-ethyl formulation as the composition which was tested in Example 1.
• tests were conducted in two plots of rapeseed, on the one hand, and in a parcel of beet on the other hand.
• the efficacy of the products was measured 44, 46 and 50 days after their application.
• the results of the tests that were conducted on the field foxtail illustrate that the composition according to the invention allows a more effective control of this adventitious plant of various cultures, compared to other compounds which are known from the state of the art.
• the present composition shows a better elimination of weeds, whether in rapeseed or beet crops.
• Results modalities treated:% efficacy compared to the control; Control: level of infestation in number of plants / m 2
• BBCH BBCH

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