HU195400B - Herbicide compositions containing phosphonoc acid derivatives and 2,4-dichloro-phenoxy-acetic acid as active components - Google Patents

Abstract

The weedkiller comprises of N-(phosphono-methyl)-glycine water soluble deriv., 2-chloro-ethane-phosphonic acid, sodium ions and dimethyl sulphoxide and it is applied at a rate of 1-3 kg/hectare. This multiactive product can be provided in a form of water soln., emulsion or suspension.

Description

FIELD OF THE INVENTION The present invention relates to compositions containing phosphonic acid derivatives and 2,4-dichlorophenoxyacetic acid or its alkali metal salt as active ingredient for killing hard-to-find weeds.

The eradication of difficult-to-eradicate weeds in crop production is a difficult technical task, as herbicide doses can only be increased to a certain extent for environmental and economic reasons. Various additives are used to enhance the phytotoxic effects of the herbicides used. However, additives generally do not modify the mechanism of action of the herbicides but enhance their distribution in plants, adhesion, absorption or penetration of the cell membrane. Such additives include, for example, fats, oils, surface tension reducing agents, and adhesives.

Weeds that are difficult to eradicate generally have a deep, powerful root with very high nutrient reserves. Usually very high doses of herbicides of 4 to 14 liters / ha are required for the eradication of difficult-to-eradicate, predominantly stalked plants.

It is known from Hungarian Patent No. 174,479 that N- (phosphonomethyl) glycine (glyphosate) and its water soluble derivatives are effective in controlling germinating seeds, budding shoots, developing and mature woody and plant vegetation, and aquatic plant growth. Therefore, the germinating seeds or the developing or mature vegetation above the soil are treated with the former active ingredients. The application rate is 1 to 25 kg / ha. In the case of perennial tarmac plants, N-phosphonomethylglycine is usually applied in the autumn when the assimilate flow is directed to the root and thus the active ingredient is able to penetrate into the root system.

On the other hand, 2-chloroethylphosphonic acid (ethephon) and its derivatives (anhydride, ester, salts of acid chloride) have long been known from, for example, U.S. Patent No. 160,618 for having a growth regulating effect on certain plant species. Thus, 2-chloroethylphosphonic acid is used as a defolian, or it is suitable for solidifying the stems of the grain, increasing the yield, increasing the resistance of the plants to pests, accelerating ripening, for example in citrus fruits or tobacco.

Co-administration of glyphosate and ethephon with glyphosate and 2,4-dichlorophenoxyacetic acid (2,4-D) has also been studied (Weed Sci. 1980. 28 (6) 722-24). enhances the herbicidal effect of glyphosate. The combined action of glyphosate and 2,4-D has been found to be satisfactory in reducing weed recurrence.

Known glyphosate-containing formulations do not kill weeds that are difficult to control at low environmental doses. A further disadvantage was that boogie preparations could only be used in preparation for winter's calm.

It is an object of the present invention to provide herbicidal compositions which can be used effectively at any stage of the growing season and which, at low doses to the herbicidal active ingredient, kill weeds that are difficult to control.

It has been found that a composition containing a defined weight ratio of glyphosate, ethephon or an alkali metal salt thereof and 2,4-D exhibits better herbicidal activity than glyphosate alone in the same amounts. It is also advantageous to adjust the application time of the compositions as they can be used as herbicides not only during the period of preparation for full rest, but also during active growth.

In our experiments to develop the composition of the present invention, we have discovered that as a result of the increased production of ethephon auxin, as a result of the action of 2,4-D on inhibiting the activity of auxin oxidase enzymes, plant assimilate uptake and concomitantly lower doses even more glyphosate is introduced into the plant than when glyphosate is used alone.

BACKGROUND OF THE INVENTION The present invention relates to herbicidal compositions containing phosphonic acid derivatives and 2,4-dichlorophenoxyacetic acid suitable for killing difficult to control weeds, in particular tarragon, in an amount of 0.5 to 40% by weight as an active ingredient. ): (0.2-0.7) by weight of N-phosphonomethylglycine, 2-chloroethylphosphonic acid or its salt and 2,4-dichlorophenoxyacetic acid, solid carriers, preferably beta-cyclodextrin Fillers and / or diluents, preferably bentonite, kaolin and surfactants, preferably ionic or nonionic surfactants.

The application rate for the three active ingredients is 1-3 kg / ha. Particularly preferred are formulations containing from 0.2 to 0.3 parts by weight of 2-chloroethylphosphonic acid and from 0.3 to 0.4 parts by weight of 2,4-D, based on 1 part by weight of N-phosphonomethylglycine. in the form of compositions having a total active ingredient content of 10-40% by weight, in addition to a carrier and a surfactant.

The composition according to the invention is suitable for killing hard-to-control weeds, especially tarragon. The composition is applied to soil containing weeds in autumn or weeds in spring. Treatment with the active ingredients may also be carried out separately.

The compositions of the invention are prepared in the form of a solution, emulsion or suspension in the usual liquid form. The formulations are prepared by mixing the active compounds or their emulsion concentrates with diluents and other active ingredients, and possibly adding surfactants. In the case of aqueous solutions, an organic solvent may also be used as a cosolvent. Surface tension reducing agents include carboxymethylcellulose, nonitol, and the like.

The product is sprayed or sprayed onto the soil or plants. Generally, the appropriate doses will depend on environmental factors, climatic conditions and soil conditions.

The preparation of the formulations is illustrated by the following examples: (The parts of the examples are always understood as parts by weight!)

Example 1 part glyphosate [N- (phosphonomethyl) glycine] part 2,4-d (2,4-dichlorophenoxyacetic acid) part 2-chloroethylphosphonic acid potassium 2 part beta-cyclodextrin part. isopropylnaphthalenesulfonic acid calcium 2 parts n-oleylmethyl tauride part silica gel (Acrogcl) 2 parts nonylphenyl polyethylene glycol ester (3-5 ethylene glycol units)

Example 2 part glyphosate 6 parts 2,4-D part 2-chloroethylphosphonic acid potassium

-2195 400 parts bentonite part n-oleylmethyl tauride part beta-cyclodextrin part isobutylnaphthalenesulfonic acid calcium part silica gel (Aerogel)

Example 3 part glyphosate part 2,4-D part 2-chloroethylphosphonic acid potassium part beta-cyclodextrin part isobutylnaphthalenesulfonic acid calcium 64 part kaolin

Example 4 Part Glyphosate Part 2,4-D Part 2-Chloroethyl Phosphonic Acid Potassium Part Beta-Cyclodextrin Part N-Oleyl Methyl Tauride Part Isobutyl Naphthalenesulfonic Acid Calcium 20 Part Magnesium Silicate 53 Part Kaolin

Example 5 Part Glyphosate Part 2,4-D Part 2-Chloroethyl Phosphonic Acid Potassium Part Beta-Cyclodextrin Part Sulfated Oil Part Isopropyl Naphthalenesulfonic Acid Calcium 63 Part Silica Gel (Aerogel)

Example C Part Glyphosate Part 2,4-D Part 2-Chloroethyl Phosphonic Acid Potassium Part Beta-Cyclodextrin Part Sulfated Oil Part Isopropyl Naphthalenesulfonic Acid Calcium Part Kaolin

Example 7 Part Glyphosate Part 2-Chloroethyl Phosphonic Acid Potassium Part 2,4-D Part Beta-Cyclodextrin Part Calcium Isopropyl Naphthalenesulfonic Acid Part N-Oleyl Methyl Tauride Part Nonyl Phenyl Polyethylene Glycol Ester 70 Part Silica Gel (Airgel)

Example 8 Part Glyphosate Part 2-Chloroethyl Phosphonic Acid Potassium Part 2.4-D 10 Part Bentonite Part N-Oleyl Methyl Tauride Part Beta-Cyclodextrin Part Isobutyl Naphthalenesulfonic Acid Calcium 52 Part Silica Gel (Aerogel)

Example 9 part glyphosate part 2-chloroethylphosphonic acid potassium

1.5 parts 2,4-D 10 parts bentonite part 4-oleylmethyl tauride part beta-cyclodextrin part isobutylnaphthalenesulfonic acid calcium 65.5 parts kaolin

Example 10 Part Glyphosate Part 2-Chloroethyl Phosphonic Acid Potassium 3 Part 2,4-D Part B-Cyclodextrin Part 4-Oleyl Methyl Tauride Part Isobutyl Naphthalenesulfonic Acid Calcium 71 Part Kaolin

Example 11 Part Glyphosate Part 2-Chloroethyl Phosphonic Acid Potassium 5 Part 2,4-D Beta-Cyclodextrin 5 Part Sulfated Oil Part Isopropyl Naphthalenesulfonic Acid Calcium Part Silica Gel (Aerogel)

Example 12 Part Glyphosate Part 2-Chloroethyl Phosphonic Acid Potassium 7 Part 2,4-D Beta-Cyclodextrin 5 Part Sulfated Oil Part Isopropyl Naphthalenesulfonic Acid Calcium Part Silica Gel (Aerogel)

The materials are mixed in the order indicated and adjusted to the appropriate particle size over the duration of the grinding. The desired particle size is 5 microns.

Biological examples

The biological activity of the compositions of the present invention is illustrated by:

Example 13

The trials were set up in a field trial in a small-plot experiment in areas heavily contaminated with star meadow (Cynodon dactylon), sorghum (Sorghunr halepense), and common wheat (Agropyron repens).

The active compounds were tested in the form of formulations according to Examples 1 to 12 in two different metabolic states of the weeds:

(a) in the spring, in a period of intense growth, when the assimilate flow and accumulation is concentrated in the above-ground parts;

(b) in the autumn, when the plant is ready for hibernation and the assimilates flow into the root and are stored there.

Autumn treatments were carried out in the area infected with meadow grass (Cynodon dactylon) in the middle of September with the following combinations with 220 I / ha of spray juice. Labeling of preparations:

1. Untreated control

2. N-phosphonomethylglycine 2000 g / ha

3. N-phosphonomethylglycine 1400 g / ha

4. N-phosphonomethylglycine 1000 g / ha

5. N-phosphonomethylglycine 2000 g / ha + 400 g / ha 2-chloroethylphosphonic acid

-3195,400

6. N-phosphonomethylglycine 1400 g / ha = 400 g / ha 2-chloroethylphosphonic acid

7. N-phosphonomethylglycine 1000 g / ha + 400 g / ha 2-chloroethylphosphonic acid

8. N-phosphonomethylglycine 2000 g / ha + 2,4-dichlorophenoxyacetic acid 600 g / ha + 2-chloroethylphosphonic acid 400 g / ha

9. N-phosphonomethylglycine 1400 g / ha + 2,4-dichlorophenoxyacetic acid 600 g / ha + 2-chloroethylphosphonic acid 400 g / ha

10. N-phosphonomethylglycine 1000 g / ha + 2,4-dichlorophenoxyacetic acid 600 g / ha + 2-chloroethylphosphonic acid 400 g / ha

The results of the tests are shown in Table 1.

Table 1

Phytotoxic effects of the compositions of the invention on Cynodon dactylon in autumn

preparations notices Level of phytotoxicity * Symptom appearance ** I II. III. ARC. Average i s m e 11 1 and Second 8 6 9 7 8 13 Third 6 7 7 6 7 15 4th 4 3 4 4 4 15 5th 9 9 9 9 9 6 6th 9 9 9 9 9 8 7th 7 6 7 7 7 11 8th 9 9 9 9 9 6 9th 9 9 9 9 9 6 10th 9 9 9 9 9 6 control 1 1 1 1 1 15

* = 1 = ineffective, 9 = 100% mortality ** = in days after treatment

No phytotoxic effects were observed with 400 g / l and 600 g / ha of 2-chloroethylphosphonic acid and 1200 g / ha of 2,4-D-NH ₄ salt.

The results presented in Table 1 are summarized below:

- The active substances tested are. With the exception of N-phosphonomethylglycine, they are ineffective against Cynodon dactylon.

- The 2000 g / ha dose of N-phosphonomethylglycine did not completely eradicate the lawn. The EWRC number was 8. The dose decreases the herbicidal effect. The first symptoms appeared on the 13th day after treatment at the highest dose, and on the 19th day at the lowest dose at 1000 g / ha.

In combination with the formulations of the present invention, it was observed that 2-chloroethylphosphonic acid was co-administered with 2,4-dichlorophenoxyacetic acid-NH ₄ salt effective against only dicotyledonous weeds, and did not initially damage the monocot. showed slight phytotoxic symptoms, only 2 to 3 on the EWRC scale.

Particularly remarkable results were obtained when N-phosphonomethylglycine was used together with 2-chloroethylphosphonic acid. As long as it is. At 2000 g / ha dose of N-phosphonomethylglycine at day 21, the degree of toxicity was 8 on the EWRC scale, and symptoms appeared on day 13 after treatment, whereas 2-chlorine Toxicity was increased with ethyl phosphonic acid. By reducing the dose of N-phosphonomethylglycine to 1400 g / ha and adding 400 g / ha of 2-chloroethylphosphonic acid, the degree of toxicity increased to a maximum of 9 and the symptoms were appeared 6 days after treatment. The dose of N-phosphonomethylglycine was reduced to 1000 g / ha and co-used with 2 and 4-chloroethylphosphonic acid at 400 and 600 g / ha, respectively. 1.5 l / ha - the herbicidal effect of the combination on star anthrax was achieved when N- (phosphono-norethyl) glycine was used alone at 2000 g / ha. Phytotoxicity was 6-7 on the EWRC scale and the first symptoms were 9-11 before treatment. days.

The effects of the compositions of the present invention were also investigated on meadow fescue soil, which is growing intensively on 40-60 cm tall marshmallows, where the average marshmallow infestation was 1.0-1.2 stem / m ² and the shoot number per root was 8-12. . There was no crop production in the experimental area.

Plots of 2x10 m were developed in this area. The study was performed in 4 replicates. The formulations were sprayed in 500 L of water per hectare.

The experiment was evaluated on days 7 and 21 after treatment (see Table 2). The following conclusions can be drawn from the study data:

- Combined, N-phosphonomethylglycine 1000, 1400,

With a dose of 2000 g / ha with 400 g / ha of 2-chloroethylphosphonic acid, the herbicide is used at 1400

At a dose of 2000 g / ha it caused complete destruction of the plants.

- Similarly good results were obtained when N- (phosphonomethyl) glycine 1000 g / ha + 2-chloroethylphosphonic acid 400 g for the combination N-phosphonomethylglycine + 2-chloroethylphosphonic acid / ha also increased to 9 for phytotoxicity when the combination contained 2.4-D.

Table 2

Efficacy of the formulations of the invention in Sorghum halepense

preparations notices The extent of phytotoxicity in the days following treatment, based on the EWRC scale 7 days 21.nap First 1 1 3 5 Third 1 3 4th 1 3 5th 6 9 6th 6 9 7th She 7 8th 4 9 9th 4 9 10th 3 8

The phytotoxic activity of the compositions of the invention was investigated in common wheat (Agropyron repens). The study was conducted in the autumn, at the end of August in the open air. The test results are summarized in Table 3:

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Table 3

Phytotoxic effect of the compositions of the invention on common wheat (Agropyron repens)

Preparation- Rate of phytotoxicity in weasels after treatment _during wheat_

Day 7 Day 21

EWRC values

2 3 9

3 2 6

4. 2 5

5. 5 9

6. 5 9

7. 4 7

8. 9 9

9. 7 9 _lCk____________7____________ 9

Examining the effect of the compositions of the invention in common wheat, the following conclusions can be drawn:

- N-phosphonomethylglycine alone

It killed 2,000 g / ha of wheat. Lower EWRC values at lower doses indicate that the treatment is virtually ineffective as the remaining cans repopulate the area.

- The addition of N-phosphonomethylglycine with 2-chloroethylphosphonic acid improved the efficiency. Significant mortality was also observed at lower doses.

- Further potency was measured when the previous combination was supplemented with 2,4-D. At the highest dose of N-phosphonomethylglycine, the plants were completely killed by day 7. Total mortality was also measured when the dose of N-phosphonomethylglycine was reduced to 1000 g / ha and combined with 2-chloroethylphosphonic acid and 2,4-D.

The biological activity of the compositions of the invention was evaluated as a function of refolding percentage. On the plots of the experiment described above, the dried and green parts of plants were cut off after 21 days of evaluation. Thereafter, 30 days later, we evaluated which formulations and combinations were sprayed with parsley. On plots on which a stem was sprouting again, treatments were considered ineffective. Thus, one repetition rate was 25-25%.

At 2800 g / ha of N-phosphonomethylglycine at 30 days post-mortem, the incidence rate was 75%. At lower doses, this value is 100%, meaning that the active ingredient did not enter the rhizoma in the actively growing phenycircases and did not destroy its assimilate reserves. Total mortality was also observed with preparations 5, 6, 8.

The results are shown in Table 4.

Example 14

As described in Example 13, under field conditions, repeated tests were carried out in field apples to combat star anthers. On the plantation, 0.02 hectares of plots were planted, and the investigated combinations were sprayed in the spring when the star lawn was sprayed. The formulations were used as a tank mix. The spray rate is 500 l / ha

Table 4

Effect of the compositions of the invention on the reproduction of Sorghum halepense

Preparation- Census% Notes Day 7 Mark Day 21

First 100.0 100.0 Second 100.0 100.0 healthy sets Third 100.0 100.0 healthy sets 4th 100.0 100.0 healthy shit 5th 25.0 - total destruction 6th 25.0 - total destruction 7th 75.0 100.0 drive distortion 8th 25.0 - total destruction 9th 25.0 25.0 peak whitening, shoot distortion 10th 75.0 100.0 drive distortion Comment: 100% spatter = ineffective

0% agitation = was effective. On the 21st day after the treatments, we evaluated the scaling effect. On the EWRC scale, 1 indicates inactivity and 9 indicates complete destruction.

The treatments were as follows:

1. Control

2. N-phosphonomethylglycine 2000 g / ha

3. N-phosphonomethylglycine 1000 g / ha

4. 2-chloroethylphosphonic acid 400 g / ha

5. 2-chloroethylphosphonic acid 200 g / ha

6. 2-chloroethylphosphonic acid 100 g / ha

7. 2,4-dichlorophenoxyacetic acid 600 g / ha

8. 2,4-dichlorophenoxyacetic acid 300 g / ha

9. 2,4-dichlorophenoxyacetic acid 150 g / ha

10th N- (phosphono-pyridylmethyl) glycine -phosphonic acid 400 g / ha 1600 g / ha + 2-chloroethyl 11th N- (phosphonomethyl) glycine -phosphonic acid 200 g / ha 1800 g / ha + 2-chloroethyl 12th N- (phosphonomethyl) glycine Phosphonic acid 100 g / ha 1900 g / ha + 2-chloroethyl 13th N- (phosphono-pyridylmethyl) glycine -phosphonic acid 400 g / ha 600 g / ha + 2-chloroethyl 14th N-phosphonomethylglycine phosphonic acid 200 g / ha 800 g / ha + 2-chloroethyl 15th N-phosphonomethylglycine phosphonic acid 100 g / ha 900 g / ha + 2-chloroethyl 16th N-phosphonomethylglycine phenoxyacetic acid 600 g / ha 1400 g / ha + 2,4-dichloro- 17th N- (phosphonoethyl) glycine -phenoxyacetic acid 300 g / ha 1700 g / ha + 2,4-dichloro- 18th N- (phosphonomethyl) glycine -phenoxyacetic acid 150 g / ha 1850 g / ha + 2,4-dichloro- 19th N- (phosphono-methyl) glycine -phenoxyacetic acid 600 g / ha 400 g / ha + 2,4-dichloro- 20th N-phosphonomethylglycine-phenoxyacetic acid 300 g / ha 700 g / ha + 2,4-dichloro- 21st N- (phosphonomethyl) glycine -phenoxyacetic acid 150 g / ha 850 g / ha ⁺ 2,4-dichloro- 22nd 2,4-dichlorophenoxy-acetic acid-phosphonic acid 100 g / ha 500 g / ha + 2-chloroethyl 23rd 2,4-dichlorophenoxyacetic acid phosphonic acid 200 g / ha 400 g / ha + 2-chloro-ethyl ·

-5195 400

24. 2,4-Dichlorophenoxyacetic acid 200 g / ha + 2-chloroethylphosphonic acid 400 g / ha

25. N-phosphonomethylglycine 1000 g / ha + 2-chloroethylphosphonic acid 400 g / ha + 2,4-dichlorophenoxyacetic acid 600 g / ha (10 kg / ha) formulation)

26. N-phosphonomethylglycine 1000 g / ha + 2-chloroethylphosphonic acid 200 g / ha + 2,4-dichlorophenoxyacetic acid 300 g / ha (5.0 kg / ha 8). example preparation)

27. N-phosphonomethylglycine 1000 g / ha + 2-chloroethylphosphonic acid 100 g / ha + 2,4-dichlorophenoxyacetic acid 150 g / ha (10 kg / ha according to Example 9) formulation)

28. N-Phosphonomethylglycine 500 g / ha + 2-chloroethylphosphonic acid 350 g / ha + 2,4-dichlorophenoxyacetic acid 150 g / ha (5 kg / ha according to Example 10) formulation)

29. N-phosphonomethylglycine 500 g / ha + 2-chloroethylphosphonic acid 250 g / ha + 2,4-dichlorophenoxyacetic acid 250 g / ha (5 kg / ha according to Example 11) formulation)

30. N-Phosphonomethylglycine 500 g / ha + 2-chloroethylphosphonic acid 150 g / ha + 2,4-dichlorophenoxyacetic acid 350 g / ha (5 kg / ha according to Example 12) formulation)

In the assay, N-phosphonomethylglycine was Glialka (200 g / L), 2,4-Dt Dicamin D (400 g / L), 2-chloroethylphosphonic acid (400 g / L). 1) used as formulations.

treatments number The degree of phytotoxicity in EWRC values First 1 Second 6 Third 3 4th 1 5th 1 6th 1 7th 1 8th 1 9th 1 10th 8 11th 7 12th 6 13th 6 14th 5 15th 5 16th 7 17th 7 18th 6 19th 4 20th 5 21st 4 22nd 1 23rd 1 24th 1 25th 9 26th 9 27th 8 28th 6 29th 7 30th 6

Weed control studies in apple orchards showed that N- (phosphonomethyl) glycine alone did not kill star meadow at 2000 g / ha. It is further found that 2,4-D and 6-2-chloroethylphosphonic acid do not damage the tarragon. In addition to N-phosphonomethylglycine a

2.4-D and 2-chloroethylphosphonic acid, respectively, have been reported to have improved efficacy in the literature. Combined use of the two hormonal compounds with N-phosphonomethylglycine resulted in complete destruction of star anthers (treatments 25-26). In these treatments the dose of N-phosphonomethylglycine was 1000 g / ha. At similar doses, herbicide-induced phytotoxicity was characterized by a score of only 3. By reducing the herbicide dose to 500 g / ha, the same degree of weed damage as in treatment 2 was observed when N- (phosphonomethyl) glycine was

It was used in combination with 2.4-D and 2-chloroethylphosphonic acid. Finally, the efficacy of the triple combinations outweighed that of the dual agent combinations. Combined use of the two hormonal compounds may result in a more beneficial herbicide effect with N-phosphonomethylglycine than when combined with only one of the hormonal agents.

Example 75

After harvesting on winter barley stubble, the control of re-emergent sorghum (Sorghum halepense) was investigated with the combinations according to the invention on 200 m ² plots. The formulations were applied at a flow rate of 500 l / ha. On the 21st day after the treatments, the efficacy of the formulations was evaluated as described in the previous example and the shoots were cut with a shredder. In the autumn we examined which plots were replanted so that rhizomes could be completely destroyed.

treatments Dose kg / ha Phytotoxicity on day 21 germinal % control 1 100 Glialka + Rol Fruct 1.0 8 35 Glialka 4.0 9 8 Example 3 5.0 8 27 Example 3 7.5 9 11 Example 3 10.0 9 0 Example 6 5.0 9 13 Example 6 7.5 9 0 Example 6 10.0 9 0 Glialka + Dicamin D 3.0 + 0.6 8 26

When used against the most dangerous tarragon weeds in agricultural production, the combinations according to the invention are found to have significantly better efficacy than Glycala. Even with the use of 20 liters of active ingredient per hectare, 4 kg of active ingredient was not completely eradicated. Total mortality of rhizomes was observed using 2.7-2.8 kg / ha of active compound according to the present invention. Rhizoma was not completely destroyed even when N-phosphonomethylglycine was combined with only 2,4-D or only 2-chloroethylphosphonic acid.

Claims (1)

A patent claim Herbicidal preparations containing phosphonic acid derivatives and 2,4-dichlorophenoxyacetic acid as active ingredients for the control of difficult to eradicate weeds, in particular tarragon, characterized in that the active ingredient is between 0.5 and 40% by weight. in an amount of 1: (0.1-0.5) :( 0.2-0.7) by weight of N-phosphonomethylglycine, 2-chloroethylphosphonic acid or its alkali metal salt and 2,4-dichloro phenoxyacetic acid, solid carriers, preferably beta-cyclodextrin, fillers and / or diluents, preferably bentonite, kaolin, and surfactants, preferably ionic and / or nonionic surfactants.