HERBICIDE COMPOSITION

The present invention relates to the field of herbicidal compositions.

The invention will find its application mainly in the field of the treatment and elimination of plants deemed to be harmful for certain crops.

More particularly, the invention relates to 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.

Traditionally, herbicides are defined as active substances or preparations used to control weeds or weeds.

In some configurations, selective herbicides are used. These advantageously allow the control of weeds to be promoted while not preventing the growth of the plant which is cultivated.

The term "adventitious" in the remainder of the description means a plant which accidentally colonizes a territory without having been deliberately planted therein, 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 crop, due in particular to the effects of competition with the crop plant, for example with respect to water, light, or mineral elements present in the soil.

An adventitious plant may be an uncultivated plant that settles in a field of a plant voluntarily cultivated by a farmer, or a regrowth from a previous crop, such as a cereal regrowth in a rapeseed crop.

An adventitious plant may consist of an annual plant, which lives only for a season, or a perennial plant, that is, which lives more than one annual cycle.

Many herbicidal compositions for treating weeds are known in the prior art.

These compositions generally incorporate at least one active ingredient, conventionally 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.

Thus, in the prior art, herbicidal compositions comprising a component belonging to the family of aryloxyphenoxypropionates, also known as FOPs, are known as active ingredient.

Herbicidal compositions in which the active ingredient is constituted by a chemical molecule belonging to the cyclohexanediones family are also known.

However, the use of such herbicidal compositions has led to the appearance of adventitious plants resistant to this type of component.

Also known in the prior art is a herbicidal composition which incorporates, on the one hand, an aryloxyphenoxypropionate, quizalofop-p-ethyl and, on the other hand, a cyclohexanedione, clethodim.

More particularly, in this composition, the quizalofop-p-ethyl and the clethodim are introduced in equivalent proportions. Thus, 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. In other words, the ratio between quizalofop-p-ethyl and clethodim is 1: 1, which means that the two active constituents of the composition are present in equivalent concentrations.

However, it has been demonstrated by the Applicant that such a ratio does not make it possible to obtain optimum properties in terms of efficiency and spectrum of action.

It is also known from US Pat. No. 5,629,262, which relates to a method for controlling grasses in crops, in which two inhibitors of acetyl coA carboxylase are applied. These inhibitors may be products belonging to the family of cyclohexanediones, such as sethoxydim, clethodim or caloxydim.

Certain amounts of application of these products to crops are described, in particular from 0.0125 to 0.08 lbs. ai / acre of clethodim.

However, the Applicant has demonstrated that the application of two herbicidal compounds belonging to two different families at a specific and very specific ratio enabled a substantial improvement in the treatment of weeds.

Thus, the invention offers the possibility of overcoming the various drawbacks of the prior art by proposing a herbicidal composition having a particularly advantageous efficiency in the treatment of adventitious plants.

More particularly, the present herbicidal composition promotes the control of these weeds relative to the compositions known in the state of the art. In addition, said composition has a broad spectrum of efficacy and, as a result, allows many undesirable plants to be treated and controlled effectively, while not preventing the cultivation of plants which it is actually desired to develop .

To this end, the present invention relates to a herbicidal composition comprising at least one first compound belonging to the aryloxyphenoxypropionate family and at least one second compound belonging to the family cyclohexanediones, said composition being characterized in that the first compound and the second compound is present in said composition in a ratio ranging from 1: 1.5 to 1: 4, or from 1: 1.5 to 1: 3, or from 1: 1.5 to 1: 2.5 or 1 : 1.75 to 1: 2.25, or from 1: 1.8 to 1: 2.2.

This means that 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 , 8 to 2.2 times greater than the amount of said first compound.

Furthermore, in the composition according to the invention, the proportion of first compound is 31.2 to 35.7%, and the proportion of second compound in said composition is 64.3 to 68.8%.

It has in fact been demonstrated by the Applicant that such ratios between the first compound and the second compound allowed an increase in the effectiveness of the herbicidal composition in the control of weed plants in the fields of cultivation .

Advantageously, 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.

This means that the amount of said second compound, a cyclohexanedione, in the composition according to the invention is twice as large as the amount of said first compound, an aryloxyphenoxypropionates, the proportion of compound first in said composition being of the order of 33, 3% and the proportion of the second compound in said composition being of the order of 66.7%.

This particular and specific ratio between the constituents of the herbicidal composition allows a particularly optimal action of said composition during the treatment of weeds.

According to another feature of the invention, the first compound belonging to the aryloxyphenoxypropionate family is selected 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.

With regard to the second compound belonging to the cyclohexanediones family, the latter is advantageously selected from the group consisting of clethodim, cycloxydim and tepraloxydim, the isomers of these compounds and the salts of these compounds.

Particularly, the compound belonging to the family of aryloxyphenoxypropionates is quizalofop-p-ethyl and the compound belonging to the cyclohexanediones family is clethodim.

Quizalofop-p-ethyl, coupled with clethodim, allows a particularly effective treatment of weeds.

In certain embodiments, 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 cyclohexanediones varies from 135 to 144 , 4 g / L of composition.

In one embodiment, the mass concentration of the first compound belonging to the aryloxyphenoxypropionate family is 70 g / L of composition and in which the mass concentration of the second compound belonging to the family 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 field of cultivation of a plant to be cultivated with the composition according to the invention comprising at least a first compound belonging to the family aryloxyphenoxypropionates and at least one second compound belonging to the cyclohexanediones family.

In this process, from 0.2 to 1.5 L, or from 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 total of said composition per hectare of the field.

The rate of application of said first compound is 13.1 to 112.5 g / ha of field while the rate of application of said second compound is 27 to 216.6 g / ha.

Most preferably, the rate of application of said first compound is from 32.8 to 60 g / ha of field, or from 35 to 56 g / ha, and the rate of application of said second compound is from 67.5 to 115.5 g / ha, or 70 to 112 g / ha.

Advantageously, prior to the step of applying the herbicidal composition to 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 adventitious plant belonging to the family of the Grasses.

In particular, said composition may be used for the elimination of annual bluegrass (Poa annua) and / or quackgrass (Elytrigia repens) and / or bromines (Bromus sp.) And / or cereal regrowths, in particular regrowths wheat (Triticum aestivum) and / or barley (Hordeum vulgare) and / or ryegrass (Lolium sp.) and / or field foxtail (Alopecurus myosuroides) and / or crabgrass (Digitaria sanguinalis ) and / or Panicum miliaceum and / or seriets (Setaria sp.) and / or sorghum of Aleppo (Sorghum halepense) and / or of the rootstock (Echinochloa crus-galli) and / or panicum miliaceum.

Interestingly, the herbicidal composition is used in the treatment of a dicotyledonous culture.

More specifically, this crop is selected from rapeseed (Brassica napus), beetroot (Beta vulgaris), protein pea (Pisum sativum), sunflower (Helianthus annuus), flax (Linum usitatissimum), soybean (Glycine max) , alfalfa (Medicago sativa).

Other features and advantages of the invention will emerge from the detailed description which follows of non-limiting embodiments of the invention.

The present invention relates to a particular herbicidal composition.

This composition essentially comprises at least two active principles which will make it possible to combat undesirable weeds.

Thus, the composition incorporates, on the one hand, at least one first compound belonging to the aryloxyphenoxypropionate family, the compounds of this family also being called FOPs, or FOP compounds in the remainder of the description.

On the other hand, the herbicidal composition according to the invention also comprises at least a second compound belonging to the cyclohexanediones family, the compounds of this family also being called DIMs in the remainder of the description.

In other words, it is entirely conceivable that the present composition comprises a plurality of compounds belonging to the family of aryloxyphenoxypropionates, and several compounds belonging to the family of cyclohexanediones.

In some cases, the composition comprises a compound belonging to the aryloxyphenoxypropionate family, and a compound belonging to the cyclohexanediones family.

Advantageously, the composition comprises only, as active substances, a compound belonging to the family of aryloxyphenoxypropionates, and a compound belonging to the family of cyclohexanediones.

In a particularly advantageous manner, the ratio of the FOP family compound to the compound of the IMG family 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.

In other words, in the composition according to the invention, the compound of the family of the DIMs is present in a greater quantity than the compound belonging to the family of FOPs.

The term "quantity" in the present description means the mass of a pure compound, in gram (g), present in the herbicidal composition of the invention. It is therefore the mass, in g, of compound DIM and of compound FOP.

Thus, 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. Accordingly, the active ingredient proportions of 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.

In addition, it has been suggested that the amount of DIM compound may be up to 2.2 times or up to 4 times the amount of FOP compound. In this case, the ratio of the FOP compound to the DIM compound is 1: 2.2 or 1: 4 and the composition comprises 31.2% by weight of FOP compound and 68.8% by weight of compound DIM or 20% by mass of compound FOP and 80% by weight of compound DIM.

In some embodiments, the ratio of 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.

In this particularly advantageous case, the amount of DIM compound in the herbicidal composition is twice as great as the amount of aryloxyphenoxypropionate compound.

In other words, the herbicidal composition of the invention may comprise, in proportion to active substances, of the order of 33.3% by weight of compound FOP on the one hand and of the order of 66.7 % by weight of DIM compound on the other hand.

In certain embodiments, the concentration by mass of DIM compound within said composition is 140 g / L of the latter. The compound belonging to the aryloxyphenoxypropionate family is then present in a concentration by mass of 70 g / L of the composition.

By "mass concentration" is meant the mass (in g) of a compound, FOP or DIM, in a volume of 1 L of herbicidal composition.

One liter of herbicidal composition according to the invention therefore comprises, on the one hand, an amount of pure FOP compound of 70 g and, on the other hand, an amount of pure DIM compound of 140 g, which corresponds to a ratio between these compounds of 1: 2.

However, such an example is not limiting of the invention, and the concentration by weight of DIM may vary from 50 to 840 g / l or from 135 to 144.4 g / l. As regards the concentration by weight of aryloxyphenoxypropionates, this may 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 should be from 1: 1.5 to 1: 4 or in the range from 1: 1.8 to 1: 2.2, this ratio being equal to about 1: 2 in some embodiments, as already mentioned above.

It has in fact been demonstrated by the Applicant that such a modification with respect to the herbicidal compositions of the prior art in which the two active compounds are present in equivalent concentrations and proportions within the composition, improved herbicidal properties.

The results, illustrating the improvement of the herbicidal activity of the present composition, relative to the existing compositions, are found in Examples 1 and 2 detailed below.

Turning now to the compound belonging to the family of aryloxyphenoxypropionates, or FOPs, included in the composition according to the invention, this 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, such as those mentioned above, for example two of these compounds, or more. In this case, the ratio between the compounds belonging to the aryloxyphenoxypropionate family and the DIM compound varies from 1: 1.5 to 1: 4, or from 1: 1.8 to 1: 2.2 in some cases.

Haloxyfop consists of a herbicidal chemical of the formula C 15 H 11 CIF 3 NO 4 . It is also called haloxyfop-P or haloxyfop-.

Propaquizafop has the crude formula C 22 H 22 CIN 3 O 5 .

As regards the quizalofop-p-tefuryl compound, this has the formula C 22 H 21 CIN 2 O 5 .

Fluazifop-p-butyl as empirical formula Ci 9 H 2 oF 3 N0 4 and is generally hydrolyzed in fluazifop-P once absorbed by the plant to be treated. There is also fluazifop-butyl, which is hydrolyzed to fluazifop once absorbed in the plant.

Fenoxaprop-p-ethyl has the crude formula Ci 8 Hi 6 ClNO 5 . These compounds are active on annual and perennial plants.

In a particular embodiment, the compound retained in the herbicidal composition consists of quizalofop-p-ethyl.

This chemical compound corresponds to a phytosanitary substance having a crude 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. At the level of these zones, the compound disturbs their development, resulting, consequently, in stopping the growth and propagation of this plant.

More generally, all the compounds belonging to the chemical family of the FOPs act, in particular in the growth zones, by inhibiting the lipid synthesis pathways of the plants to be eliminated, and more particularly the enzyme acetyl coenzyme A carboxylase which intervenes in these routes.

As regards the compound belonging to the family of cyclohexanediones, this is advantageously chosen from the group consisting of clethodim, cycloxydim and tepraloxydim.

This compound may also be chosen from the isomers or salts of the compounds clethodim, cycloxydim and tepraloxydim.

Most preferably, this compound consists of clethodim.

Thus, in one embodiment, 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 cyclohexanediones and corresponds to an active substance with a herbicidal effect. The crude formula of the 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. However, some crops, such as rapeseed or pea crops, may be susceptible to this substance. Thus, the plant which it is desired to cultivate is liable to suffer some damage during the treatment of the crop, which is not desirable.

The mode of action of clethodim is based on the inhibition of the synthesis of fatty acids in plants. Indeed, vegetable fatty acids are essential to the integrity of cell membranes, as well as to the growth of new plants.

More specifically, clethodim acts by inhibiting acetyl coenzyme A carboxylase (or ACCase), which corresponds to the second enzyme involved in the synthesis pathway, on the one hand, of fatty acids and, on the other hand, of flavonoids .

Other mixtures of FOP and DIM are particularly interesting. These are in particular the following mixtures:

- haloxyfop and clethodim;

- propaquizafop and clethodim;

- fenoxaprop and clethodim;

fluazifop-p-butyl and clethodim;

- quizalofop-p-terfuryl and clethodim;

- quizalofop-p-ethyl and cycloxydim; and

- quizalofop-p-ethyl and tepraloxydim.

The herbicidal composition according to the invention makes it possible to propose a product which has a high and very complete efficacy on all the weed species considered to be crop weed. Furthermore, said composition allows an effective treatment of both annual weeds and perennial weeds.

In addition, while certain plant species resistant to the ACCase inhibitor family have appeared in Europe, the combination of the two compounds in the particular ratio of the present invention advantageously allows for the maintenance of herbicidal effectiveness.

Thus, the herbicidal composition that has been developed consists of a tool allowing the control of resistant plant species and that it is difficult, if not impossible, to eradicate. Said composition may also make it possible to combat the appearance of resistances.

To this end, the present invention also relates to a method for controlling at least one adventitious plant, the latter being indifferently annual or perennial, capable of propagating in a field of culture of another plant species, which is , actively cultivated.

The method for controlling said adventitious plant is carried out by means of the herbicidal composition according to the invention and the formulation of which has been detailed above, which composition is applied to the field of culture.

Advantageously, the composition used in the control method of the weed plant comprises quizalofop-p-ethyl and clethodim in a ratio ranging from 1: 1.5 to 1: 4, or from 1: 1.8 to 1: 2.2; this ratio being equal to 1: 2 in certain embodiments.

According to some embodiments, said composition is applied by spraying thereof at the field on which growth and propagation of weeds are to be controlled.

Advantageously, said composition is applied in post-emergence at the level of the weeds to be treated, that is to say that the composition is applied between the time when the young plant emerges from the soil and the moment when it reaches maturity.

In certain embodiments, 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 certain embodiments, this volume to be applied is between 0.5 and 0.8 L / ha.

In other words, the rate of application of the first compound belonging to the FOP family, in particular quizalofop-p-ethyl, ranges from 8.5 to 315 g / ha of field, or from 13.1 to 112, 5 g / ha of field, as a function of the mass concentration of FOP compound which was recalled previously.

In some cases, this application rate 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.

As regards the rate of application of the compound belonging to the family of IMGs, and advantageously consisting of clethodim, it ranges from 13 to 1260 g / ha of field, or from 27 to 216.6 g / ha , or according to certain possibilities from 26 to 670 g / ha, or from 67.5 to 115.5 g / ha, depending on the abovementioned concentration of clethodim. According to a particular embodiment, this rate ranges from 70 to 112 g / ha.

It is also possible for the aryloxyphenoxypropionate compound to be applied for values ​​ranging from 10 to 30 g / ha of field and the cyclohexanedione compound to be 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 rate of between 10 and 30 g / ha and in which the cyclohexanedione compound is applied at a rate of between 20 and 60 g / ha.

According to one possibility, 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.

Finally, according to yet another possibility, 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.

A total volume of at least 50 L / ha of field is advantageously applied, in some cases from 150 to 300 L / ha and in some cases from 200 to 250 L / ha of field.

Accordingly, prior to the application step, the herbicidal composition is diluted in a total volume as indicated in the preceding paragraph.

Advantageously, said herbicidal composition is diluted in an aqueous solution, comprising at least water, and which can consist, for example, of an aqueous emulsion.

The aqueous solution may comprise other constituents, such as, for example, a stabilizing compound and / or a surfactant, etc.

The total volume applied to the culture may also comprise, in addition to the herbicidal composition and the aqueous solution, other components.

Indeed, advantageously, before the step of applying the herbicidal composition to the culture, the composition can be mixed with at least one adjuvant oil, which is capable of increasing the effectiveness of the herbicidal composition.

In one embodiment, 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 the order of 1.0 L of oil adjuvant for one hectare of field, before completing with the aqueous solution, to arrive at a total volume of between 50 and 300 L / ha of said field.

Specifically, the combination of such an adjuvant oil with said composition would make it possible to keep the latter on the surface of the leaf of the plant to be treated, thus causing a greater quantity of active herbicidal agent to penetrate into the circulatory system of said composition vegetal.

The adjuvant oil which can be mixed with the herbicidal composition of the invention may be of any type.

In particular, it may be either an oil of vegetable origin or a petroleum-derived oil or an animal oil.

With respect to a vegetable adjuvant oil, it 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".

When a petroleum-derived oil is used, it may consist, for example, of a paraffinic mineral oil.

The herbicidal composition according to the present invention is particularly effective for the control and elimination of adventitious plants belonging to the Gramineae family. The plants of this family can also be called Poaceae (or Poaceae).

The Grasses are herbaceous plants, annual or perennial, and this family groups a large number of species.

In particular, some cultivated cereals, such as maize, wheat, barley, etc. belong to the Gramineae family. Cereals may in fact prove to be undesirable in certain fields of cultivation, in particular when a field has served, in the first instance, for the cultivation of a species of cereal and is then destined to receive another culture .

Unwanted regrowths of cereals may then be likely to develop and, as a result, compete with the cultivated variety.

More particularly, the herbicidal composition according to the invention can be used to eliminate at least one weed selected from the following weeds: annual bluegrass (Poa annua), common quackgrass (Elytrigia repens), bromine Bromus sp.), Regrowths of cereals, especially regrowths of common wheat (Triticum aestivum) and / or barley (Hordeum vulgare), ryegrass (Lolium sp.), Field foxtail (Alopecurus myosuroides) (Echinochloa crus-galli), Panicum miliaceum (Panicum miliaceum), Seitaria (Setaria sp.), Sorghum halepense (Sorghum halepense).

However, it is also possible for the composition to be used for controlling any other type of weeds belonging in particular to the Gramineae family.

Thus, the herbicidal composition according to the invention makes it possible to treat a wide range of undesirable plant species and which are likely to develop and to propagate in a crop of a given plant, thus inhibiting the growth of the latter.

Indeed, the herbicidal composition according to the invention can be used for the treatment of a wide variety of plants which are deliberately grown.

Thus, said composition is advantageously used to treat dicotyledonous crop fields.

More particularly, the composition can control the development of at least one weed plant in a dicotyledonous crop selected from rape (Brassica napus), beet (Beta vulgaris), protein pea (Pisum satlvum), sunflower (Helianthus annuus), flax (Linum usitatissimum), soybean (Glycine max), alfalfa (Medicago sativa).

However, other types of cultures can be further processed using the present composition.

Unless otherwise stated, all scientific and technical terms used herein have the same meaning as commonly accepted by those skilled in the art in the field of which this invention pertains.

Although methods and materials similar or equivalent to those described hereinafter may be used in the practice or assays involving the invention, suitable methods and materials are described in the present specification.

All applications, publications, patents and other references cited herein are incorporated in their entirety by reference herein. In the event of conflict, this application, including the definitions, shall prevail.

In the present application, the singular forms "one", "one", "the", "the" include plural references unless the context clearly indicates otherwise.

In the present application, the numerical values ​​are often presented in the form of ranges of values ​​throughout this document. Ranges of values ​​are used primarily for convenience and conciseness and should not be interpreted as a strict limitation of the scope of the invention.

Therefore, the use of a range of values ​​expressly includes all possible subdomains and all individual numerical values ​​included in that range, and all numerical values ​​or numerical ranges comprising integers included in these ranges or sub- domains, as well as the fractions of said numerical values ​​or said integers within these ranges, unless the context explicitly indicates otherwise. This applies in all cases to the entire range of values ​​and in all contexts throughout this application. Thus, for example, a range of values ​​of 40 to 60% includes 41-59%, 42-58%, 43-57%, 41-58%, 41-57%, 41-56%, 41-55% 41-54%, 41-53%, and so on.

In the present application a series of ratios is used primarily for convenience and conciseness and should not be interpreted as a strict limitation of the scope of the invention.

The use of ratios sets include the combinations of the upper ratio and the lower ratio to provide ratios in the form of a range of values. This construction applies in all cases to the entire range of ratios values ​​and in all contexts throughout this application.

The present invention is generally disclosed hereinafter using assertive language to describe the numerous embodiments. The invention also specifically includes embodiments in which a particular object is excluded, in whole or in part, for example, substances or materials, steps of methods and conditions, protocols, procedures, tests or analyzes.

Thus, although the invention is not generally expressed hereinafter in terms which formalize what the invention does not include, aspects which are not expressly included in the invention must, however, be considered as being disclosed therein.

The examples below illustrate the effectiveness of the action of the composition against certain weeds, such as rye grass (Lollum multlflorum) and field foxtail (Alopecurus myosuroides), in crops of various species, such as rapeseed (Brassica napus) or beet (Beta vulgaris).

EXAMPLE 1 Test of the Effectiveness of the Herbicidal Composition on Ryegrass

Tests were conducted to show the effectiveness of the herbicidal composition according to the invention on an adventitious plant called rye grass. This plant, also called multiflora or Italian ryegrass (Lolium multlflorum) is traditionally considered a weed.

A herbicidal composition comprising a first compound belonging to the aryloxyphenoxypropionate family and a second compound belonging to the family cyclohexanediones, said composition being characterized in that the first compound and the second compound are present in said composition in a ratio ranging from 1: 1 , That is, the amount of said second compound in the composition is 1.5 to 4 times greater than the amount of said first compound, and in that the first compound proportion in said composition composition is between 20 and 40%, the proportion of the second compound in said composition being between 60 and 80%.

A herbicidal composition according to the preceding claim, characterized in that the first compound and the second compound are present in said composition in a ratio ranging from 1: 1.8 to 1: 2.2, i.e. the amount of said second compound in the composition is 1.8 to 2.2 times greater than the amount of said first compound, and in that the proportion of first compound in said composition is between 31.2 and 35.7%, the proportion in the second compound in said composition being between 64.3 and 68.8%.

A herbicidal composition according to any one of the preceding claims, wherein the ratio of the first compound belonging to the aryloxyphenoxypropionate family to the second compound belonging to the cyclohexanedione family is of the order of 1: 2, that is the amount of said second compound in the composition is twice as large as the amount of said first compound, wherein the proportion of first compound in said composition is of the order of 66.7% and the proportion of second compound in said composition being of the order of 33.3%.

A herbicidal composition according to any one of the preceding claims, wherein the first compound belonging to the aryloxyphenoxypropionate family is selected from quizalofop-p-ethyl, haloxyfop, propaquizafop, quizalofop-p-tefuryl, fluazifop-p butyl, fenoxaprop-p-ethyl, the isomers of these compounds and the salts of these compounds.

A herbicidal composition according to any one of the preceding claims, wherein the second compound belonging to the family of cyclohexanediones is selected from the group consisting of clethodim, cycloxydim, tepraloxydim, isomers of these compounds and salts thereof.

A herbicidal composition according to any one of the preceding claims wherein the compound belonging to the family of aryloxyphenoxypropionates is quizalofop-p-ethyl and the compound belonging to the family cyclohexanediones is clethodim.

A herbicidal composition according to any one of the preceding claims wherein the mass concentration of the first compound belonging to the aryloxyphenoxypropionate family ranges from 65.6 to 75 g / L of composition and wherein the mass concentration of the second compound belonging to the family of cyclohexanediones ranges from 135 to 144.4 g / L of composition.

A herbicidal composition according to any one of the preceding claims, wherein the mass concentration of the first compound belonging to the aryloxyphenoxypropionate family is 70 g / L of composition and in which the mass concentration of the second compound belonging to the cyclohexanediones family is 140 g / L of composition.

9. A method for controlling at least one adventitious plant capable of developing in a field of cultivation of a plant to be cultivated, with a composition according to any one of claims 1 to 8 comprising at least a first compound belonging to the family of aryloxyphenoxypropionates and at least one second compound belonging to the family cyclohexanediones, wherein between 0.2 and 1.5 L of said composition or between 0.5 and 0.8 L is diluted in a total volume of 50 to 300 L of a suitable aqueous solution and this total volume is applied per hectare of the field.

10. Control method of at least one weed plant according to the preceding claim, in which the application rate of said first compound is between 13.1 and 112.5 g / ha of field, or between 32.8 and 60 g / ha of field, or between 35 and 56 g / ha, and the rate of application of said second compound is between 27 and 216.6 g / ha of field, or between 67.5 and 115.5 g / ha , or between 70 and 112 g / ha.

11. Method for controlling at least one adventitious plant according to claim 9, in which, prior to the application step, the composition is mixed with an adjuvant oil.

12. Use of the herbicidal composition according to one of claims 1 to 8 for controlling at least one adventitious plant belonging to the family of the Grasses.

13. Use of the herbicidal composition according to the preceding claim for the elimination of annual bluegrass (Poa annua) and / or quackgrass (Elytrigia repens) and / or bromines (Bromus sp.) And / or cereal regrowths, in particular volunteers of common wheat (Triticum aestivum) and / or barley (Hordeum vulgare), and / or ryegrass (Lolium sp.) and / or field foxtail (Alopecurus myosuroides) and / or crabgrass and / or Panicum miliaceum and / or sericaria (Setaria sp.) and / or Aleppo sorghum (Echinochloa crus-galli) and / or Panicum miliaceum Sorghum halepense).

14. Use of the herbicidal composition according to either of claims 12 and 13 for the treatment of a dicotyledonous culture.

15. Use of the herbicidal composition according to the preceding claim for the treatment of a crop chosen from rapeseed (Brassica napus), beetroot

(Beta vulgaris), protein pea (Pisum sativum), sunflower (Helianthus annuus), flax (Linum usitatissimum), soybean (Glycine max), alfalfa

(Medicago sativa).

16. The use of the herbicidal composition as claimed in claim 1, wherein the aryloxyphenoxypropionate compound is applied at a rate of between 10 and 30 g / ha and the cyclohexanedione compound is applied at a rate of between 20 and 60 g / Ha.

17. Use of the herbicidal composition according to claim 1, wherein the aryloxyphenoxypropionate compound is applied at a rate of 14 g / ha and the cyclohexanedione compound is applied at a rate of 28 g / ha.

Use of the herbicidal composition according to one of claims 1 to 8, wherein 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.