The method of controlling undesirable plant growth and herbicide composition used in this method

 

(57) Abstract:

Describes herbicide composition comprising an effective total quantity of active substance dimethenamid and the second herbicide, and conventional additives, characterized in that as the second herbicide it contains at least one herbicide selected from the group containing: 1. the growth regulators; 2. inhibitors of photosynthesis; 3. inhibitors of pigments; 4. the growth inhibitors; 5. inhibitors of the synthesis of amino acids; 6. inhibitors of the biosynthesis of lipids; 7. the triketones, in an amount to provide Energeticheskiy herbicide effect. Also describes the method of controlling undesirable plant growth. A mixture of dimethenamid with one or two other herbicides have a strong synergism against a large number of unwanted weeds. This synergistic interaction of the compounds according to the present invention is highly surprising and unexpected for the spectrum of known activity known individually herbicides. 2 C. and 8 C.p. f-crystals, 21 PL.

The invention relates to a method of controlling undesirable growth of plants, using a joint application, in the future, co-deposition, dimethenamid and at ID, and the use of such compositions for the destruction of unwanted growth of vegetation.

Dimethenamid /FRONTIER/ (chemical name 2-chloro-N-/-2,4 - dimethyl-3-thienyl/-N-/2-methoxy-1-methylethyl/-ndimethylacetamide), the means of obtaining it, herbicide compositions containing it and its use as a herbicide is described in U.S. patent N 4666502, which is incorporated herein by reference. Dimethenamid consists of four stereoisomers due to the presence of two chiral elements and, thus, can exist in the form of individual stereoisomers as diastereomeric mixture (IS, aRS /known as S-dimethenamid/ and IR, aRS /known as R-dimethenamid/ and as a racemic mixture of (IR, aRS). Links here on dimethenamid relate to its various forms, if not stated the opposite. Diastereomer mixture of S-dimethenamid is preferred.

The term herbicides used here, refers to compounds that fight or control the unwanted growth of vegetation. This class of compounds can be subdivided into subclasses according to the primary type or manner of action of the herbicide on the plant. For example, according to G. F. Warren of Purdue University, Indiana, USA, herbicides can be classified as inhibit the ora growth inhibitors of the synthesis of amino acids, inhibitors of the biosynthesis of lipids, biosynthesis inhibitors sheath cells, fast destroyers of cell membranes, as well as mixed herbicides that do not fit under any of the previous categories.

Currently, it has been unexpectedly found that the joint application of dimethenamid with at least one herbicide leads to the best and in some cases longer applicable control unwanted growth of vegetation. This Energeticheskiy effect manifests itself in a higher extent of injury at doses of co-deposition, which are considerably lower than the dose of each individual compound required to obtain the same degree of control. Therefore, at any given dose of co-deposition of the degree of control is much higher than the additive effect obtained for the individual components at the same doses. In some cases, increase both the speed and the degree of control and/or can be controlled weeds that are not controlled by one component in small doses.

Energeticheskiy effect allows satisfactory to affect vegetation in small doses causing residual control. In addition, longer residual control can be achieved. This provides significant economic and environmental benefits when using dimethenamid and herbicides used in combination with them.

Co-deposition can be achieved when using the tank mixture of pre-formulated individual active ingredients, simultaneous or sequential (preferably 1-2 days) application of such formulations or the application of pre-set fixed pre-mixed combinations of the individual active ingredients.

Examples of herbicides that can be used in combination with dimethenamid in accordance with the invention include:

1. inhibitors of auxin transport, such as naptalam,

2. the growth regulators, including a/ benzoic acid, for example dicamba; b) phenoxy acid i/ acetic-acid type, such as 2,4-D, MSRA, ii/ type propionic acid, for example 2,4-PD MSR, iii/ type butyric acid, for example 2,4-DV, MSRV;) picolinate acid and derivatives, such as cicloral, triclopyr, fluroxypyr, clopyralid,

3. inhibitors of photosynthesis, including (a) SIM-triazine i) x is n, for example ametrine is high, prometryn; b) other triazine, such as hexazinone, metribuzin; substituted urea, such as Diuron, fluometuron, linuron, titution, thidiazuron, forchlorfenuron; g) orally, such as bromacil, terbacil; e) other, such as bentazon, desmedipham, phenmedipham, propanil, person, peridot,

4. inhibitors of pigments, including (a) pyridazinone, such as norflurazon; b) isoxazolone, such as clomazone; others, such as amitrol, floridon,

5. growth inhibition, including (a) mitotic destructors (i) dinitroanilines, such as trifluralin, prodiamine, benefin, ethalfluralin, isopropylene, oryzalin, pendimethalin, ii) others, such as CPA, dithiopyr, thiazopyr, pronamide; b) inhibitors of seed germination: (i) THIOCARBAMATE, for example ARTS, butyl, cycloate, molinet, pebulate, thiobencarb, triallate, vernolate;) inhibitors roots of seedlings, for example Bensalem, napropamide, sibron; g) inhibitors of roots and shoots of seedlings, including chloracetamide, for example, alachlor, acetochlor, metolachlor, diacetyl, propachlor, butachlor, pretilachlor, metazachlor, dimethachlor and others, such as cinmetacin,

6. inhibitors of the synthesis of amino acids, including (a) glyphosate, gluefast; b) sulfonylureas such as rimsulfuron, madron, thifensulfuron, tribenuron, atomiculture, triflusulfuron, cloperastine, pyrazosulfuron, prosulfuron (CCA-152005), halosulfuron, metsulfuron-methyl, metsulfuron-methyl, chlorimuron-ethyl; sulfonamides, such as flumetsulam (and.to.and DE 498); d) imidazolinone, for example imazaquin, imazamethabenz, imazapyr, imazethapyr,

7. inhibitors of the biosynthesis of lipids, including (a) cyclohexandione, such as sethoxydim, clethodim; b) aryloxypropanolamine, for example fluazifop-P-butyl, clethodim, Dilovar-methyl, haloxyfop-methyl, quizalofop; in the other, for example fenoxaprop-ethyl,

8. inhibitors of the biosynthesis of cell walls, for example dichlobenil, isoxaben,

9. fast destroyers of cell membranes, including (a) derivatives bipyridine, such as paraquat, dikwa; b) diphenyl ethers, for example acifluorfen, fomesafen, lactofen, oxyfluorfen; inhibitors of glutamine synthase, such as glufosinate; others, such as oxadiazon,

10. mixed, including (a) carbamates, such as Azul; b) NITRILES, such as bromoxynil, ioxynil; gigantoid and its derivatives; d) various, such as paclobutrazol, ethofumesate, quinclorac (and.to.A. VA 514), Difenoxin, endothal, fosamine,

11. other:

a) triketones and dione-506907), as well as EP-A-137963; EP-A-186118; EP-A-186119, EP-A-186120; EP-A-249150; EP-A-336898; the contents of each are included in the references, examples of such triketones and diones are sulcotrione (MIKADO) (chemical name 2-/2-chloro-4-methansulfonate/-1,3-cyclohexandione); 2-/4-methylsulfonylamino-2-nitrobenzoyl/-4,4,6,6-tetramethyl-1,3 - cyclohexandione; 3-/4-methylsulfonylamino-2-nitrobenzoyl/- bicyclo[3,2,1] octane-2,4-dione; 3-/4-methylsulphonyl-2-nitrobenzoyl/- bicyclo,2,1 octane-2,4-dione; 4-/4-chloro-2-nitrobenzoyl/-2,6,6 - trimethyl-2H-1,2-oxazin-3,5/4H, 6H/dione; 4-/4-methylthio-2 - nitrobenzoyl/-2,6,6-trimethyl-2H-1,2-oxazin-3; 5(4H, 6H)-dione; 3-/4-methylthio-2-nitrobenzoyl/-bicyclo[3,2,1] octane-2,4-dione; 4-/2-nitro-4-trifloromethyl/-2,6,6-trimethyl-2H-1,2-oxazin - 3,5(4H,6H)-dione,

b) compounds of the type described in the application U.S. 08/036006 (and EP-A-461079, and EP-A-549524); EP-A-315889 and the PCT application N 91/10653, the contents of each of which is incorporated herein by reference, including, for example, 3-/(4,6-dimethoxy-2-pyrimidinyl)hydroxymethyl/-N-methyl-2 - pyridine carboxamide; 4,7-dichloro-3-/4,6-dimethoxy-2-pyrimidinyl/-3 - hexanolactone; 3-/(4,6-dimethoxy-2-pyrimidinyl)-carbonyl/- N, N-dimethyl-2-pyridine carboxamide; 3,6-dichloro-2-/(4,6-dimethoxy-2 - pyrimidinyl)carbonyl (benzoic acid); 6-chloro-2-/4,6-dimethoxy - 2-pyrimidinyl tio/benzoic acid (a. K. a. PX-RE and is aerovane unwanted growth of vegetation or Vice versa regulate the growth of vegetation, which includes with the application in places where such suppression or control is necessary, the effective total herbicide or postregulators number of dimethenamid and at least one herbicide.

Use the dose for co-application will of course vary depending on climatic conditions, time of year, ecology, soils, species of weeds that need to be suppressed, and so forth, however, a successful result can be obtained, for example, with doses of dimethenamid from 0.1 to 3.0 kg/ha, preferably from 0.1 to 2.0 kg/ha, especially 0.25 to 1.5 kg/ha, for example 0.9 to 1.5 kg/ha during co-administration with doses of herbicides partners that meet or significantly lower than recommended for their individual use.

Compliance with specific-application for pre - or post-harvest use and selectivity is, of course, depend on the selected partner.

Activity dimethenamid described in the above patents, the activity of the appropriate herbicide partners described in the literature or commercially available forms (CROP PROTECTION CHEMICALS REFERENCE, 9thedition (1993) Chemical & Pharmaceutical Press, N 4; The Pesticide Manual, 9thedition (1991) British Crop Protection Council, London; Ag Ch is finding relates to herbicide compositions, regulating the growth of vegetation, including herbicide effective total number of limitedarea and at least one herbicide.

Such compositions contain the active substance in combination with agronomically acceptable diluents. They can be used either in solid or in liquid form, for example in the form of a wetting powder or emulsifiable concentrate containing suitable diluents. Such compositions can be manufactured by conventional methods, for example by mixing the active ingredient with a diluent and optionally with other ingredients, such as surfactants and oils.

The term diluents used herein, means any liquid or solid agronomically acceptable material that can be added to the active composition to assure easier or improved forms of application, or to achieve a convenient form and necessary activity. Examples of diluents are talc, kaolin, diatomaceous earth, xylene, neotomine oil or water.

Separate formulations, to be applied in the form of a spray of liquid, such as water dispersible concentrates or wettable powders, the product of the condensation of formaldehyde with naphthalenesulfonates, alkylarylsulfonates, ligninsulfonate, fatty alkylsulfate, ethoxylated alkyl phenol or an ethoxylated fatty alcohol.

In General, the formulations include from 0.01 to 90 wt%. active(s) agent(s) and from 0 to 20 wt%. agronomically acceptable surfactant, and an active agent consists of dimethenamid and at least one herbicide. Concentrated forms of the compositions typically contain from about 2 to 90%, preferably from about 5 to 80% by weight active agent, form of application of the formulations can, for example, contain from 0.01 to 20% by weight of active agent.

If possible, during the simultaneous application, immediate serial or applying tank mixtures herbicide partners can be used in commercially available form and in doses equivalent to or preferably smaller than those recommended by the manufacturer or provided in the links above. Dimethenamid can also be used in commercially available form (such as FRONTIER) or as sformulirovan, for example, as described in the above U.S. patent 4666502.

In accordance with this invention by the application may also include other compounds having the.

The preferred method of application is a tank mixture, for example, by adding dimethenamid in a vessel containing another herbicide partner and appropriate surfactants or other additives depending on the type of the selected herbicide partner. It is useful to know the levels of mixing partners and to carry out comparative experiments before mixing.

Depending on the choice of partners co-application pre-emergence and post-harvest activity on a large area of broad-leaved and grass weeds can be achieved. Examples of such weeds are:

Agropyron repens; Brachiaria platyphylla; Bromus spp; Cenchrus spp; Dactyloctenium aegyptium; Digitaria spp; Echinochloa crus-galli; Eleusine indica; Eriochloa spp; Leptochloa filiformis; Oryza sativa; Panicum spp; Poa annua; Setaria spp; Sorghum almum; Sorghum bicolor; Sorghum halepense; Urochloa panicoides; Acanthospermum hispidum; Amaranthus spp;

Ambrosia artemisiifolia; Bidens pilosa; Capsella bursa-pastoris; Chenopodium album; a cleome monophylla; Commelina spp; Crotalaria sphaerocarpa; Datura stranionium; Desmodium tortuosum; Euphorbia nutans; Euphorbia maculata; Galinsoga parviflora; lpomea spp; Lamium purpureum; Matricaria chamomilla; Mollugo verticillata; Papaver rhoeas; Polygonum spp; Portulaca oleracea; Richardia scabra; Schkuhria pinnata; Sida spinosa; Solanum spp; Stellaria media; Tagetes minuta; Cyperus esculentis; Cyperus iria.

An optional list of weed control, treated with the appropriate mix of partners:

Abutilon theophrasti; Hibiscus trionum; Avena fatua; Sinapis alba; Xaiberica; Convolvulus arvensis.

Selectivity relative to agricultural crops will also depend on the choice of partners. Dimethenamid showing exceptional selectivity to corn, soybean and other crops.

Examples of individual partners for co-application with dimethenamid include the selected one or more types below from a) to h):

A. benzoic acid, for example DINAMA;

B. picolinate acid and derivatives, such as picloram, triclopyr, fluroxypyr, clopyralid;

century phenoxypropane, such as 2,4-D, 2,4-DB, triclopyr, MCPA, MCPP, 2,4-DP, MCPB;

G. other chloracetamide, for example, alachlor, acetochlor, metolachlor, diacetyl, propachlor, butachlor, pretilachlor, metazachlor, dimethachlor, especially metolachlor, alachlor, acetochlor;

D. amides, such as propanil, naptalam;

that is, carbamates, such as Azul;

W. THIOCARBAMATE, such as EPTC, butyl, cycloate, melinat, pebulate, thiobencarb, triallate, vernolate;

C. NITRILES, such as bromoxynil, ioxynil;

I. urea, such as Diuron, thidiazuron, fluometuron, linuron, tebuthiuron, forchlorfenuron;

because triazine, such as atrazine, metribuzin, cyanazine, Simazine, prometon ametrine is high, prometryn, hexazinone;
called sulfonylureas, such as rimsulfuron, metsulfuron, nicosulfuron, triasulfuron, primisulfuron, encultured, atomiculture, chlorimuron, chlorsulfuron, sulfometuron, thifensulfuron, tribenuron, triflusulfuron, cloperastine, pyrazosulfuron, prosulfuron (CCA-152005) halosulfuron, metsulfuron-methyl, chlorimuron-ethyl;

O. imidazolinone, for example imazaquin, imazamethabenz, imazapyr, imazethapyr;

p. cyclohexandione, such as sethoxydim;

R. aryloxypropanolamine, for example fluazifop;

C. derivatives of bipyridine, such as paraquat, Diquat;

so pyridazinone, such as norflurazon;

. orally, such as bromacil, terbacil;

F. isoxazolone, such as clomazone;

H. different, such as glyphosate, glufosinate, metasol, paclobutrazol, bentazon, desmedipham, phenmedipham, person, peridot, amitrol, floridon, CPA, dithiopyr, pronamide, bensulide, napropamide, sibron, flumetsulam, clethodim, diclofop-methyl, fenoxaprop-ethyl, haloxyfop-methyl, quizalofop, dichlobenil, isoxaben, oxadiazon, paclobutrazol, ethofumesate, quinclorac, difenzoquat, endothal, fosamine, MA, MMA;

Stateline partners among groups from a) to h) are group n) and C), i.e. sulfonylmethane and triketones and dione.

Co-application of a combination of dimethenamid and triketone(s) in accordance with this invention is particularly suitable crop monocots such as cereals, maize and rice. However, the application in crops of maize infected monocotyledonous and dicotyledonous weeds, is the most successful, as the action against culture is not manifested. As pre-emergence and post-harvest application to unwanted vegetation is possible in this preferred combination. However, the predominant application in maize is the time after seedling planting maize.

Use the dose for co-deposition of dimethenamid and triketone or Dion will, of course, vary depending on climatic conditions, time of year, ecology of soil, types of weeds that need to be destroyed, and so on, however, successful results can be obtained, for example, when co-applied with doses of triketone, which are significantly lower than those recommended for use individually, for example 0.01 to 2 kg/ha, preferably 0.1 to 1 kg/ha, especially 0.1 to 0.6 kg/ha.

From this group of preferred combinations are those in which trimeton or dio is n is preferred.

Most preferred is the combination of this type sulcotrione and dimethenamid. The ratio of the mixture will be determined in accordance with a feature of soil, crop and climate conditions. Dose co-application will be made in the field of 0.9-1.5 kg/ha for dimethenamid and 0.15 - 0.45 kg/ha for sulcotrione. The weight ratio of the active ingredients in the composition sulcotrione: dimethenamid is from 1:2 to 1:10.

For co-deposition of the preferred three-component mixtures containing dimethenamid and tritton or Dion group C), the third component is preferably selected from the group of K), i.e., the triazine group of herbicides. In a typical three-component mixture of the triazine component will be present in a ratio of from 3:1 to 1:3 with respect to the contents of dimethenamid, and excess dimethenamid is preferred, i.e., preferably the ratio of 1: 1 to 1:3, for example of 1:1.5. Preferred triazine herbicide in this type of three-component mixtures is atrazine.

Co-application of combinations of dimethenamid and sulfonylureas in accordance with this invention is particularly suitable crops monocotyledonous crops such as cereals, maize, sugar cane and rice which is the most successful, since the action against cultivated plants is not shown, and weeds are controlled very effectively. As pre-emergence and post-harvest application to unwanted weeds is possible for this combination. However, the preferred time of application in sugar cane is the time after sprouting crops of sugar cane or transplant the roots of the cane.

When such use of dose for co-deposition of dimethenamid and sulfonylureas are, of course, vary depending on climatic conditions, time of year, soil ecology, types of weeds, which must be destroyed, and so on, however, successful results can be obtained, for example, when co-applied and sulfonylurea in doses that are significantly less than those that were recommended for private use; for example 1-150 g/ha, preferably 10-100 g/ha

Of this group, the preferred combination for weed control in sugar cane is one where a sulfonylurea is chlorimuron. The ratio in the mixture will be determined in accordance with the specific soil, crop and climatic conditions. Examples of doses with-nameserv sugar cane they can be, for example, from 2.0 to 3.0 kg/ha for dimethenamid and from 50 to 90 g/ha for chlorimuron. The ratio of the weights of the active ingredients in the composition chlorimuron: dimethenamid is from 1:3000 to 1:20, preferably from 1:30 to 1:60, for example 1:34, 1:38, 1:45.

For co-deposition in a preferred stereocomparator mixtures containing dimethenamid and the sulfonylurea group m), the third component preferably is selected from the group, i.e. the group of herbicides, urea derivatives. In a typical three-component mixtures of urea component will be present in the ratio of from 2:1 to 1:4 with respect to the contents of dimethenamid, and excess dimethenamid preferred, i.e., preferably a ratio of from 1:1 to 1:3, such as 1: 2. Preferred urea herbicide of this type in the three-component mixture is Diuron.

It will be appreciated that mixtures of dimethenamid with more than one herbicide, such as 3-component mixtures, are also included in the scope of this invention.

Examples of specific partners for mixing can be chosen from the following: paraquat (for example, GRAMOXONE or GRAMOXONE EXTRA), Simazine (for example, PRINCER), glyphosate (such as ROUNDUP), glufosinate (for example, BAS TA) (the compounds of group (I).

Other examples with atrazine EXTRAZINE or EXTRAZINE II), terbutylazine, pendimethalin (for example, PROWL), metribuzin, linuron (connection group II).

In addition, examples of specific partners for mixing can be chosen from the following: nicosulfuron (e.g., ACCENT), rimsulfuron (e.g., TITUS) and primisulfuron (e.g., BEACON) (compounds of group III).

Examples of partners for mixing can also be selected from the following: imazethapyr (e.g., PURSUIT), imazaquin (for example, SCEPTER), chloramben, klonipin (compounds of group IV).

Next, examples of specific partners for mixing can be chosen from the following: dicamba (for example, BANVEL, CLARITY, or with atrazine MARKSMAN).

In addition, examples of specific partners for mixing can be selected from sethoxydim (for example, POAST), fluazifop (for example, FUSILAD) (compounds of group V).

Examples of specific partners for mixing can be chosen from the following: sulcotrione (for example, MIADO) and 4-/4-chloro-2-nitrobenzoyl/-2,6,6-trimethyl-2H-1,2-oxazin-3,5 (4H, 6H)-dione (compound of the group VI).

Further examples of specific partners for three-component mixtures are sulcotrione (for example, MIKADO) and atrazin (for example, GESAPRIN) (compounds of group Va).

Further examples of specifications is one way FRONT) (compound VII group).

In accordance with the required range of weeds, application and other specific herbicides listed in groups a) to h) above are also specific examples of appropriate partners for mixing.

Example 1. The active ingredients are weighed and dissolved in a mixture containing acetone and deionized water in the ratio 1:1 and 0.5% adjuvant representing mixtures of surfactants: SPAN 20:TWEEN 20:TWEEN 85 in under 1: 1: 1. Dissolve in this solution enables you to prepare solutions for spraying containing doses of individual compounds or combinations of active ingredients. Each dose was applied through the spray device with software flow rate of 600 liters per hectare as the leaves of selected weeds and the soil surface, in which pre-planted seeds of these weeds, i.e. post-harvest application and pre-emergence application. Used the seedling is a plant stage two or three leaves. The stage of development of seedlings during application were recorded. After application, the treated plants transferred to the greenhouse and kept until the end of the experiment for four weeks. Symptoms were recorded on the second or the tenth day of damage to cultivated plants and weeds received on the tenth and the twenty-eighth day after post-harvest application and on the fourteenth day after pre-emergence application.

Co-application of dimethenamid with other specific active ingredients such as listed above, gives improved herbicide action in comparison with the application of each active ingredient separately.

Example 2. A field test conducted using FRONRIERoand ACCENTo75 WDG fungicide for control Rosicky in corn. Application of a tank mixture combinations produced in the early post-harvest stage of weeds (stages 3 and 4 leaves). The dose of application of the active ingredients 1.5 and 0.75 kg/ha of dimethenamid 37.2 and 19.2 g/ha of nicosulfuron. Joint application of 0.75 kg/ha of dimethenamid and 19.2 g/ha of nicosulfuron gives 85% control with minor damage to corn compared to 35% of control in the individual applying nicosulfuron and 72% of control for dimethenamid applied individually at a higher dose is 1.25 kg/ha Joint application with a higher dose of dimethenamid from 37.2 hectares of nicosulfuron gives even greater effect destruction equal to 95%, compared to 72% for individual dimethenamid and 45% for nicosulfuron applied separately.

Example 3. A small plot of maize fields, infected chicken millet and black nightshade, sprayed tankoos chicken and stage 8 leaves" for the black nightshade. The size of the land is 8 meters long and 3 meters wide. Dose deposition is estimated at 1.1 kg/ha for dimethenamid and 0.15 kg/ha for sulcotrione. 7 days after application evaluate weed control and tolerance culture.

In this experiment the control of millet, chicken produced in 93-98%, control of black nightshade in 91-93% with three repetitions and damage to maize was less than 10%.

Example 4. A small plot of maize fields infested with millet chicken, black nightshade and Marya white, sprayed with a tank mix suspension dimethenamid, sulcotrione and atrazine. Stage weeds full ripeness" for millet, chicken and 6-8 leaves stage" for nightshade and Marie. The size of the land is 8 meters long and 3 meters wide. Dose deposition are 1,08 kg/ha for dimethenamid, 150 or 210 g/ha for sulcotrione and 750 g/ha of atrazine.

14 days after application of the rated efficiency. The results (percentage of control) are shown in table 1.

Energeticheskiy effect is pronounced at lower doses sulcotrione, resulting in almost double the effect in the control compared with the expected additive effect, in the experience of large doses sulcotrione (300 g/ha) remains clear of capitania conducted on plots (2x20 m), planted sugar cane and infected with syt, not the first and the second growth stage, and sprayed with tank mixtures of different concentrations. The amount of liquid solution is 400 l/ha (consumption). The dose amount to 2.7 kg/ha for dimethenamid with 60 g/ha of chlorimuron or 1.6 kg/ha fixed mixture of chlorimuron and Diuron (1: 19), which is commercially available under the trade name FRONT. The observed changes were recorded at 30 and 60 days after application /P. O./ in percent of control. The expected additive effect is calculated in accordance with the method of Colby. The results are shown in table 2.

The results show that the synergism obtained for the binary mixture (dimethenamid/chlorimuron), as well as for three-component mixture (dimethenamid/chlorimuron/Diuron).

Generalization weight ratios respectively quantities of herbicides in mixtures according to the invention are given in table. 3.

Report on the conduct of herbicide trials

Was researched a number of combinations of herbicide dimethenamid with one or two other herbicide-active ingredients to determine their activity in a joint application to the weed plants. Received the s activity combinations calculated on the basis of the results, obtained by applying the single active ingredients according to the method of Colby (Weeds 15, 1967, pages 20 - 22) using the following scheme calculations:

for two-component mixtures:

E = 100 - (100 - An)(100 - Bm)/100

and for three-component mixtures:

E = 100 - (100 - An)(100 - Bm)(100 - Ck)/1000

In this method, calculate the expected activity of the mixture E denotes the expected activity of the mixture containing the compound A in the proportions of n, the compound B in the ratio of m and (in the case of a three-component mixture) compound C in the proportion of k.

Method: post-harvest application of herbicides

The active ingredients were weighed and dissolved in the original solution containing acetone and deionized water in the ratio 1 : 1, and 0.5% of an activator mixture consisting of surfactants SRAN(R)20, TWEEN(R)20, TWEEN(N)in the ratio 8,5 : 1 : 1. From this initial solution were prepared cutback solutions for the preparation of spray solutions, consisting of single doses of individual or combined active ingredients. Each dose was applied simultaneously with a linear spray that is installed on the truck that is configured to make 600 litres spray volume per 1 ha as for foxes the project for plants with two to three early petals before making the tested compounds or combinations. The degree of development of each seedling during the making were log. After making the sprayed solution treated plants transferred to the greenhouse and kept until the end of the experiment for four weeks. Symptoms of injury log, two months and ten days after application.

Tested cornicopia plants (see below).

Test compounds were made in commercially available forms:

Dimethenamid made as a Frontier 900 EC

Chloridazon made as pyramid 65 EAP

Norflurazon made as Trial 80 EAP

Phenmedipham made as Betanal 157 EC

Metamitron made as Goltix 70 VG

Bentazon made as Basagran 480 EC

Metribuzin made as Sencor 70 VG

Triflusulfuron-methyl made as Safari 50 WG

Nicosulfuron was made as an Accent 75 WG

Haloxyfop-R-methyl made as Aloe 104 EC

Fenoxaprop-P-ethyl was made as Puma WITH 75 EC

Clodinafop-propargyl made as a Thread 300 EC

Diclofop-methyl made as Alloxan 360 EC

Prodiamine made as Rads 50 VP

Glyphosate was made as roundup 360 SL

Lenacil made as Venzar 80 EAP

Dicamba made as Banvel 480 SL

Peridot UPE is to Amitril t 240 EC

Obtained results are given in tables 4 to 20.

The data shown in the tables clearly show that the mixtures according to the invention have a synergistic effect.

1. Herbicide composition comprising an effective total number activitiesthese substance dimethenamid and the second herbicide, and conventional additives, characterized in that as the second herbicide it contains at least one herbicide selected from the group containing: 1. the growth regulators; 2. inhibitors of photosynthesis; 3. inhibitors of pigments; 4. the growth inhibitors; 5. inhibitors of the synthesis of amino acids; 6. inhibitors of the biosynthesis of lipids; 7. the triketones and diones, in an amount to provide Energeticheskiy herbicide effect.

2. Herbicide composition under item 1, characterized in that the second herbicide selected from the group consisting of nicosulfuron, triflusulfuron-methyl, chlorimuron.

3. Herbicide composition under item 1, characterized in that as the second herbicide it contains sulcotrione.

4. Herbicide composition under item 1, characterized in that as the second herbicide it contains chlorimuron.

5. Herbicide composition under item 1, characterized in that alternova growth of vegetation, which involves the use of a herbicide composition in the place of growth of unwanted plants, wherein as a herbicide composition use composition in PP.1 - 5 herbicide-effective total amount.

7. The method according to p. 6, characterized in that the number of dimethenamid is 0.1 - 3.0 kg/ha

8. The method according to p. 6, characterized in that the number of sulfonylureas is 1 to 150 g/ha

9. The method according to p. 6, characterized in that the number sulcotrione is 0.15 - 0.45 kg/ha.

10. The method according to p. 6, characterized in that the number of triketone and Dion is 0.01 - 2.0 kg/ha

Priority points:

18.02.93 by p. 1, 2, 4, 6 - 8;

19.02.93 on p. 9;

25.06.93 on p. 3.

 

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