EA029695B1 - Synergetic herbicidal composition - Google Patents

Abstract

The invention relates to agents for suppressing a wide range of undesirable vegetation in sowings of agricultural crops, in particular, soya. The invention is aimed at providing a new herbicidal composition for suppressing a wide range of weed (undesirable) vegetation in sowings of soya, using a synergetic composition of imazamox and chlorimuron-ethyl in a solid preparatory form - water-dispersible granules (WDG), spreading spectrum of suppressible undesirable vegetation in different vegetative periods of use and enhancement of economic effectiveness in protection soya sowings against complex multispecific cenosis of undesirable vegetation compared to known commercial preparations. The obtained technical result is a synergetic herbicidal composition of chlorimuron-ethyl and imazamox in the range of mole ratio of chlorimuron-ethyl and imazamox 0.687-0.736:1 with arabinogalactane content in the composition 0.05-0.1 wt.% having high biologic and economic effectiveness in suppressing a wide range of weed (undesirable) vegetation in sowings of soya.

Description

The invention relates to means for suppressing a wide range of unwanted vegetation in crops of crops, in particular in crops of soybean. The invention is directed to the development of a new herbicidal composition for the suppression of a wide range of weed (undesirable) vegetation in soybean crops using a synergistic composition of imazamox and hlorimuron-ethyl in a solid formulation - water dispersible granules (EDC), expanding the spectrum of suppressed undesirable vegetation in various vegetative periods of application and increase of economic efficiency in the protection of soybean crops from the complex multiple species cenosis of weeds in comparison with the known commercial preparations. Achieved technical result is a synergistic herbicidal composition of chlorimuron-ethyl and imazamox, in the range of molar ratio of chlorimuron-ethyl and imazamox 0.687-0.736: 1, with an arabinogalactan content in the composition of 0.05-0.1 wt.%, Having a high biological and economic efficiency at suppression of a wide range of weed (undesirable) vegetation in crops of soy.

029695 Β1

029695

Technical field

The present invention relates to means for suppressing a wide range of unwanted vegetation in crops of crops, in particular spring and winter rape.

Prior art

Individual chemical compounds of the sulfonyl-urea class are known, containing a group of amino-substituted heterocyclic rings, for example, ethamethulfuron-methyl, exhibiting rapeseed selectivity [1].

The herbicidal preparation §aca® (Όιι Ροηΐ), containing 750 g / kg of emetamelsulfuron-methyl in the form of a wettable powder or water-dispersible granules, is known to protect winter rapeseed from broadleaf weeds [2]. Known drug is recommended to use in the fall in doses of 20-25 g / ha, while in the composition of the working solution it is necessary to introduce up to 0.2 l / ha of the surfactant Tgep® 90. The herbicidal properties of piclorama and its salts, picolinic acid derivatives, are known [3 ]. The well-known commercial preparations picloram CGA / οη RS®, Togyop K® and Togyop 22K® are produced in the form of 4-amino-3,5,6-trichloropyridinecarboxylic-2 acid salts; Asse88® is a combination of triclopira and picloram ethers; Cga / οη B + D ®, Togyop KTI ® and RaOzgau® are mixtures of picloram and salts of 2,4-dichlorophenoxyacetic acid. Pickloram has a high herbicidal activity to combat deep-rooted weeds and woody vegetation. Also, the group of very sensitive plants include beans, peas, sunflower, cucumber. Mustard and radish react weaker to the herbicide. Relative resistance to picloram is shown by cereals - wheat, maize, oats, barley, spring rape, and winter rape [4]. The disadvantages of both piclorama itself and SABECA (CP-224), registered in the European Union, intended to protect winter rapeseed crops include a significant limitation in use — use no more than once every three years.

Known herbicide composition, including etametsulfuron-methyl and picloram [5]. The well-known herbicidal composition is intended to control undesirable vegetation: Rosychki (OfPapa 8rr.), Common Cornflower (EsiPosIoSaSiDaS (B.) Veiuu.), Ovsyuga (AgepaGa1iaa B.), Cassia (Saauli Yuga B.), ipomoea (1 moth), Ipomogea (Gauthiagia B.), cassia (Saha Southa B.), ipomoea (1 mole , Durishnik (HaYyit 8rr.) and round syty (Suregi8 Ko1ipyi8 B.) in crops of sorghum, corn, soybeans, rice and wheat. Unfortunately, the cited source does not contain information on the possible use of a known herbicidal compound for the protection of rapeseed, although both the active agrochemical components etametsulfuron-methyl and picloram are intended for this.

The purpose of the present invention is to develop a new herbicidal composition for suppressing a wide range of weed (undesirable) vegetation in spring and winter rape crops using synergistic piclorama and etametsulfuron-methyl herbicidal mixture in a solid formulation - water dispersible granules (ECD), expanding the spectrum of inhibited vegetation in various vegetative terms of application and increase of economic efficiency in the protection of rapeseed crops from a complex multiple species weeds p vigor compared with the known commercial preparations.

DISCLOSURE OF INVENTION

This goal is achieved by the fact that the synergistic herbicidal composition for suppressing unwanted vegetation in spring and winter rapeseed crops contains a combination of active ingredients etametsulfuron-methyl and piclorama in the interval of optimal molar ratios of active ingredients of 0.15-0.21: 1 with arabinogalactan content in the composition of 0.1-0.2 wt.%.

Another object of the invention is a method of suppressing undesirable vegetation in rapeseed by applying a synergistic herbicidal composition to plants to be destroyed in an effective amount, preferably 0.065-0.08 g / ha, and the surfactant Trend 90 is added to the working solution in an amount of 0 , 2 l / ha.

The herbicidal activity of compositions of different ratios of the active substances of the studied compounds was carried out both in the laboratory of artificial climate (LIK, GNU VNIIF) and in the field conditions on the lands of the Moscow Region.

Under the conditions of the vegetation experiment (VCI), studies were carried out to study the following herbicidal compounds: etametsulfuron-methyl (EMCM) and piclorama (CRP), as well as their mixtures. The preparations were tested on test plants of spring rape (p. Järvemon), sunflower (p. Martyn), oats (p. Skakun) and beets (p. Ocean) according to the standard technique with adjustable hydrothermal and light regime and standardized soil substrate. The use of test plants of sunflower, sugar beet, and oats as a model for astrov, mary and cereal weed species, respectively, made it possible to determine their response to the studied chemical compounds with phytotoxic activity. The use of spring rape as a crop that is protected from weeds is caused by the fact that spring rape as a rule has a higher response to herbicides than winter.

Test plants were grown in paper waxed cups with a diameter of 80 mm and a capacity of 600 cm ³ filled with a mixture of sod-podzolic soil, sand and peat (1: 1: 1). Cultivation conditions: illumination of 20 thousand lx for 16 hours at an air temperature of 25 ° C (day) and 8 hours

- 1 029695

a period without lighting with an air temperature of 20 ° C (night); relative air humidity of 70% with daily watering of the soil up to 60% of PT.

For the treatment of test plants in flowerpots with herbicides, an experimental sprayer OP-5 developed and manufactured at VNIIF was used, which was tuned to the mode as close as possible to the production one (the working fluid consumption rate and the uniformity of its distribution over the treated area, the range of sizes of droplets formed).

When the seedlings appeared, the test plants were rejected in height and phase of development - the same number of specimens of the corresponding biotest was left in each vessel. Upon reaching the optimal development phase of the test plants, they were treated with herbicidal preparations: rapeseed, sunflower and beets in the phase of the first pair of true leaves, oats - in the phase of the beginning of the third leaf. Repeatedly experience fivefold.

The effectiveness of herbicidal preparations was evaluated 14 days after treatment in comparison with the untreated control by the difference in the wet weight of the aerial parts of the plants.

Based on the data on the effectiveness of composite preparations, which include more than one active ingredient (active ingredient), the nature of the biological (physiological) interaction of the active components that make up the composition is calculated to assess the level of their synergy, antagonism or additivity, i.e. simple addition of the effects of each of the components of the mixture preparative form.

In herbology, it is customary to assess the nature of the biological (physiological) interaction using mathematical dependencies proposed by Colby and Limel. In accordance with the Kolbie-Limella formulas for mixed products (or tank mixes), for comparison, select the effectiveness data of individual preparations applied separately in a specific dosage and the effectiveness of the mixture composition, where the constituent components are taken in the same dosages or very close to them. .

The synergistic effect of the studied drugs is calculated according to the formula (1) Kolby (see Cobalt 8.C. Cacticipuenus Zupegun15Ar ApCrrrrrrrrrrrrrrrrrrrn Enebt 1967. V. 15. № 1. RR. 2022)

E = Ee-Eo (1),

where E is the synergistic effect of the composition,

Ee - the percentage of growth inhibition of test plants in the experiment,

Eo - the expected percentage reduction in the growth of test plants in the experiment.

The expected percentage reduction in the growth of test plants was calculated by the formula (2)

E = e + β- (εβ) / 100, (2)

where ε is the percentage of growth inhibition from component A (in our case, the combination of etametsulfuron-methyl with picloram),

β is the percentage of growth inhibition from component B (in our case, etametsulfuron-methyl or picloram, taken in doses identical or close to their fraction in the combination).

Studies have shown that both the tested active substances etametsulfuronmetil and picloram, both in pure form and in mixture compositions, have practically no negative effect on rapeseed test plants. However, when using two-component mixtures, a slight twisting of the leaves of rape is noted, and the growth point does not suffer. The effect of different ratios of ethametsulfuron-methyl and picloram on the level of toxicity in the processing of vegetative tests of sunflower, sugar beet, rape, and oats (PHI VNIIF, January (2012) is illustrated in Table 1.

Table 1

Molar an attitude EMC / CRP Dose DV g / ha (acid equivalent) Decrease in green mass of test plants, % of control Synergistic effect,% CRP EMSM spring rape salting impostor beet oats salting impostor beet oats 0: 1 0 five 0 9 24 eleven 1: 0 ten 0 0 ten nineteen 15 0.314 ten five 0 nineteen 40 12 +0.9 +1.56 0.209 15 five 0 24 43 17 +4.99 +3.04 +1.55 0.157 20 five 0 25 46 27 +5.08 +3.76 +2.65 0.105 thirty five 0 26 52 28 +4.26

As the data table. 1, the optimal ratio of the studied active ingredients, allowing to obtain the maximum biological activity in relation to sunflower, sugar beet and oats, should be considered as a composition of etametsulfuron-methyl and piclorama at a molar ratio of 0.2009-0.157: 1. Investigated synergistic herbicidal composition provided 2 029695

results in maximum suppression of test plants with a synergistic effect in the case of sunflower + 4.99 - + 5.08%, in the case of sugar beet +3.04 - + 3.76% and in the case of oats + 1.55-2.65% . At the same time, spring rape showed high herbicidal resistance to the studied compositions etametsulfuronmetil and piclorama.

Synergistic herbicidal composition in the form of water-dispersible granules contains components in the following molar ratios: ___

Picklore 1.0 Etametsulfuron-methyl 0.209-0.157 Surfactants, May. % 4-7 Binder, May. % 7-9 Filler, May. % the rest is up to 100

Below are the characteristics used in the new synergistic herbicidal composition of surfactants and fillers .__

TECK.5REK.8E® 2020 The condensation product of the sodium salt of sulfonated naphthalene and formaldehyde is a dispersant. Lignosulfonates, powdered. A mixture of sodium salts of lignosulfonic acids. Dispersant (TU 13-02810036-15-90) TECUET® 1004 Alpha - olefin sulfonate - wetting agent Arabinogalactan, CA8 9036-66-2 polysaccharide, TU 9325-008-70692152-08 Neonol AF 9-12 Ethoxylated nonyl phenol SdNsSbNdOYugNdODN, n = 9-12 (TU 2483-077-5766801-98). Sintanol BV A mixture of ethoxylated fatty alcohols C _p H _{2 p} +1 O (C ₂ H ₄ O) _t H, n = 10-18, t = 7-12 (TU 6-36-5744684-85-90). Betapav A Alkylcarboxybetaines (A1K-C ₈ -C _{) 2} ), TU 2482-00204706205-2004). White soot Fine-dispersed silicon oxide 8ΐΟ ₂ Ή ₂ (GOST 18307-78) grade 100 or 120. Aerosil Pure silicon dioxide 8U ₂ (GOST 14922-77). Kaolin Natural aluminosilicate A1 ₂ Oz'28Yu ₂ H ₂ O with admixtures of quartz, mica and spar (CA8 1332-58-7) Ammonium sulfate Finely dispersed ammonium salt of sulfuric acid (CA8 7783-20-2)

Synergistic herbicidal composition etametsulfuron-methyl and piclorama at a molar ratio of 0.21: 1, which was conventionally called Etamaster Super, was tested in field plot experiments on lands of the Moscow Region, Odintsovo District, GNU VNIIF.

Tillage: autumn plowing (September 2011) to a depth of 18–20 cm with a dumping plow PN4-35, spring cultivation with the KPN-4 cultivator to a depth of 5-6 cm, pre-sowing harrowing to a depth of 5-8 cm. Culture: spring rape varieties MOBILE CL. Seeding rate: 4.5 kg / ha. Sowing date: 22.05.2012. Time of emergence: 05.06.2012. Soil of experimental plots: sod-podzolic, with a humus content of 2.5%, pH of _water . 5.8; CEC 11 mEq / 100 g soil. Phase of plant culture at the time of processing: 2-3 pairs of leaves (06/18/2012); budding (27.06.2012). During the preparation of the experiment, the following measures were taken to take care of the plots: processing the insecticide Fastak, EC (150 ml / ha) against cruciferous flea on 31.05.2012, insecticide Monsoon, VRK (100 ml / ha) against rapeseed tsvetkoeda 29.06.2012 and the polymer glue Elastic, CE (1 l / ha) in order to prevent the cracking of the pods on 10.08.2012. The OM-300 sprayer with a flow rate of 280 l / ha was used for background treatments with insecticides and glue.

The weed infestation of spring rapeseed before processing with herbicides in the phase of 2-3 pairs of leaves (18.06.2012) is given in table. 2

- 3 029695

table 2

Types of weeds Development phase Height, cm Level debris number of pieces / m ² % of the total amount Juvenile Common Hedgehog (ESI'TOSYOA of South Africa (L.) Weihu.) 1-3 l., Tillering 1-8 178 35.4 White Mar (Skeporit ait b.) cotyledons - 3-4 leaves. 1-7 165 32,8 Chamomile odorless (MaShsapa 1posigna E), Fragrant chamomile (Ma (psag1ata (psaguyles) (lez.) Rogter) cotyledons-rosette 1-3 50 10.0 Yarutka field (Tyazr atepze b.) socket 3-5 35 7.0 Field thorns (8reg% i1a an> epc1z b.) cotyledons 2 whorls 3-15 18 3.6 Pomegranate Pochechuyny (Pölü% opit regiagcha L. 2-5 sheets 5-15 13 2.6 Chymyanka officinalis (Eitaya οβϊάηαΐϊε b.) 1-3 l. 5-7 12 2.4 Field Violet (Uyu1a Akepsz Migg.) cotyledons - 3 leaves. 1-3 ten 2.0 Shepherd's purse ordinary (SarzeIa ligza-time (opz (b.) Mes) socket 3-5 eight 1.6 The star is average (V / e // Apa-tesna (L.) S.) 3-5 sheets. 1-5 five 1.0 Wild radish (Karkapiz garIapRSgit b.) 3-5 sheets. 10-12 3 0.6 Highlander Convolvulus (ΡαΙΙορία SOCIALS (b.) A. Loeue) 1-2 l sheet 5-7 one 0.2 Perennial Thistle field / C / ga / shi atae (b.) 8mor.) socket 5-8 one 0.2 Medicinal Dandelion (Tagahasit οβϊβϊηαΐβ Viegegeh \ νΐ§§.) socket 3-5 one 0.2 Plantain large (ΡΙαηίαχο ta) og B.) 2 l sheet 3-4 one 0.2 Total 501 100.0

The weed infestation of spring rapeseed before processing with herbicides in the budding phase (June 27, 2012) is given in Table. 3

Table 3

Types of weeds Development phase Height, cm Level debris number of pieces / m ² % of the total amount Mal get White Mar (Skeporit ait b.) 6-12 l. 6-12 124 23.5 Swamp cuddly (Sparki Iit iuozit b cotyledons-3 l. 1-3 90 17.1 Field thorns (8reg% and 1a atembz b.) 2th color 10-15 75 14.2 Common hedgehog (ESYPOSYOa sgiz ^ aS (L.) Weiuu.) tillering 10-17 60 P, 4 Shepherd's purse ordinary (SarzeIa ligzarazüpz (b.) Meес) rosette 5-12 54 10.3 Chamomile is odorless (Maine's blessing b.), Fragrant chamomile (MAGHSAGBA taBpsayoMez (lezz.) RoPeg) rosette 4-11 45 8.5 Yarutka field (TyazrbgepzeU.) rosette 4-8 20 3.8 The star sprocket medium <5 / e // close crowded (b.) OY1.) 8-Yul. 8-12 13 2.5 Dymyanka medicament (/ * c / ia / 7a about $ bcdb b.) 3-5 liters 7-9 eleven 2.1 Pomegranate pochuchuyny (Po1u§opit regzsa na b.) 3-7 l. 10-15 6 S Field Violet (UOAA archeps Migg.) 5 l. 6-8 6 S Cygut's stork (Egosnith csiabait (b.) “Not.) 3-5 liters 6-9 four 0.8 Pikulnik ordinary (SayorzSekgKY to), n. Beautiful (Sayorz srEsoz MSh.) 2-4 l. 8-10 3 0.6 Wild radish (Rarkapiz garca Hb b.) 5-7 l. 10-15 2 0.4 The Highlander Convolvulaceae (EaSorba sohbhiz (b.) A. Go) 3-4 l. 6-9 2 0.4 Bluegrass annual (roa appia b.) tillering 5-6 2 0.4 Cleavers (SaYit araNpe b.) 2-3 whorls 5-8 2 0.4 Common groundseller (Repertoire of w.H.L.) 3 l. 6 one 0.2 Perennial Plantain large (ΡΙαηίαρρ pie to) 3 l. 4-5 2 0.4 Sow thistle (Oopsisch atepbzk) socket 5-6 2 0.4 Field Thistle (Ships Akepse (L.) rosette 8-30 one 0.2 Medicinal dandelion (Tagahasit of'Pe'e Uegegeh \ νί§§.) socket 8-10 one 0.2 Total 526 100.0

Different compositions of synergistic herbicidal composition etametsulfuron-methyl and piclorama with additives of ETD-90 (Trend® 90) surfactant or arabinogalactan and standard Galera 334; VNIIF (Bulletin of the Russian Academy of Agriculture, 1993, № 3).

Consumption rate of water suspension 200 l / ha. Method of application: continuous ground spraying

- 4 029695

vegetative plants.

The area of the experimental plots is 20 m ² , fourfold, the allocation of plots is consistent with the elements of randomization. The scheme of the experiment is given in table. four.

Table 4

Experience option Terms of application of herbicides (rape phase) 2-3 pairs of leaves budding 1. EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 10 g / ha + 30 g / ha + 0.2 l / ha 2. EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha 10 g / ha + 30 g / ha + 0.2 g / ha 3. Galera 334, BP 0.3 l / ha 0.35 l / ha 4. Control without herbicides - -

Dates of registration of harmful objects: when processing herbicides in the phase of 2-3 pairs of leaves on June 18 (initial contamination), July 17 (30 days after treatment), August 1 (45 days after treatment), August 22 (before harvest); when processed in the budding stage on June 27 (initial contamination), July 27 (30 days after treatment), August 22 (before harvesting).

Methods of accounting: quantitative and quantitative-weight methods for accounting sites of 0.25 m ² , 4 sites in each plot ("Methodological guidelines for field testing of herbicides in crop production." M., 1981).

Date of harvest: August 27, 2012. Method of harvesting and accounting for the harvest: harvesting in sheaves from 1 m ² , ² replicas on each plot. Statistical data processing using analysis of variance.

The period of the protective action of the synergistic herbicidal composition: from the moment of spraying throughout the entire growing season of the crop.

In order to obtain information on the possible toxicity of a new drug for cultivated plants, systematic visual observations were made of the treated plots. Signs of phytotoxicity of the studied drugs for spring rape plants are found when used only in the culture budding phase.

The results of comparative studies of weed infestation of spring rapeseed after treatment with synergistic herbicidal compositions in the phase of 2-3 pairs of culture leaves are presented in Table. five.

Table 5

Experience option Herbicide Dose Debris Reduced contamination,% of control pcs / m ² | g / m ² by count I by weight Accounting 30 days after processing (July 17) EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 72 295.3 67.2 59.0 EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha 84 26.5 62.1 68.5 Galera 334, BP 0.3 l / ha 144 601.1 46.5 16.4 Control - 221 719.3 - - Accounting after 45 days after processing (August 1) EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 97 221.4 40.9 79.9 EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha 87 195.3 47.0 82.3 Galera 334, BP 0.3 l / ha 186 432.5 30.2 60,8 Control - 165 1103.4 - - Before harvesting (August 22) EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 54 85,6 83.1 84.3 EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha thirty 65,8 85.0 92.8 Galera 334, BP 0.3 l / ha 186 464.0 6.9 45.0 Control - 200 844.3 - -

As it follows from table. 5, at the time of processing of spring rapeseed crops in the phase of 2-3 pairs of leaves of culture, significant contamination of crops was observed. In total, there were 14 types of weed vegetation with a total of 501 pcs / m ² . The juvenile species for the most part were represented by ordinary spring trees (178 pieces / m ² or 35.4% of the total amount), white March (165 pieces / m ² or 32.8%) and chamomile odorless and fragrant (50 pieces / m ² or 10.0%). Perennial species in single specimens were represented by a field thistle, a medicinal dandelion and a large plantain. Other types of weeds typical for this zone (field field, field thorns, mountaineer species, medicinal smoke, field violet, shepherd's bag, wild radish) were observed in insignificant quantities during this observation period (from 1 to 20 pcs / m ² ).

The evaluation of the biological efficacy of the studied synergistic herbicidal compositions when used in the phase of 2-3 pairs of crop leaves revealed the following features of their phytotoxic effect on the existing weed cenosis. The use of synergistic herbicidal compositions EMSM + CRP + ETD-90 (Trend® 90) at a dose of 10 g / ha + 30 g / ha + 0.2 l / ha and EMCM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha resulted in a decrease in debris by 59.0 and 68.5 wt.% Of weeds, respectively, which was significantly more effective than in the case of using the reference drug Galera 334, BP at a dose of 0.3 l / ha (16 , 4% reduction).

- 5 029695

In the subsequent periods of taking into account the contamination of the experimental plots of spring rape, the biological effectiveness of the synergistic herbicidal compositions under study increased and by the time of harvest reached 84.3 and 92.8% by weight of aboveground weed organs. At the same time, the maximum effectiveness of the reference drug Galera 334, BP at a dose of 0.3 l / ha reached 45 days after application only 60.8% and at the time of harvesting again decreased to 41.9%.

The results of comparative studies of weed infestation of spring rapeseed after treatment with synergistic herbicidal compositions in the budding phase are presented in Table. 6

Table 6

Experience option UCH4 EMSM + PKR + ETD-90 (Trend® 90) Herbicide Dose • t 30 days after treatment 10 g / ha + 30 g / ha + 0.2 l / ha Debris Reduced contamination,% of control pcs / m ² ki (27 July! 197 g / m ² 443.8 by count 50.2 by weight 68.7 EMSM + CRP + arabinogalactan 10 g / ha +30 g / ha + 0.2 g / ha 146 385.9 63.1 72.8 Galera 334, BP 0.35 l / ha 224 891.3 43.5 37.2 Control - 396 1419.8 - - Before harvesting (August 22) EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 156 576.1 33.5 35.3 EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha 169 309.6 28.2 65.2 Galera 334, BP 0.35 l / ha 164 518.0 30.3 41.9 Control - 235 891.0 - -

As it follows from table. 6, at the time of processing of spring rape crops in the phase of culture budding, a significant increase in contamination was observed. In the weed cenosis there were already 22 species of weed vegetation of 526 pcs./m ² . At the same time, compared with the processing of rapeseed in the phase of 2-3 pairs of leaves of the culture, there was a significant increase in the weeds cenosis of the number of juvenile species. In the presented coenosis of juvenile species, white prevailed (124 pcs / m ² or 23.5% of the total amount), dried marshes (90 pcs / m ² or 17.1%), field thorium (75 pcs / m ² or 14.2%), ordinary cinnamon (60 pcs / m ² or 11.4%) and a shepherd's bag (54 pcs / m ² or 10.3%). Of the perennial species in single copies there was a large plantain (2 pcs / m ² or 0.4%), field sow thistles (2 pcs / m ² or 0.4%), field thistle (1 pcs / m ² or 0 , 2%) and dandelion officinalis (1 pcs / m ² or 0.2%). Other types of weeds traditional for this zone (chamomile, odorless, field yarks, middle stars, dymyanka (medicinal), field violets, mountaineers, annual bluegrass, tenacious bedstraws and common bonsai during this period were represented in an insignificant number (from 2 to 10 pcs ./m ² ).

In the phase of culture budding, the study of the biological efficacy of synergistic herbicidal compositions in the studied doses, as compared to the untreated control, also showed a high biological efficacy of 65–72%, while the phytotoxicity of the synergistic herbicidal composition of EMSM + ShSR + arabinogalactan significantly exceeded the effectiveness of synergistic herbicidal composition EMSMMM + ETD-90 (Trend® 90) and the reference drug Galera 334, BP at a dose of 0.35 l / ha (37-41%).

The yield of spring rapeseed when processing synergistic herbicidal compositions in the phase of 2-3 pairs of leaves is given in table. 7

Table 7

Experience option Drug dose Yield (oilseeds), centners per hectare Protected yield centners per hectare % of control EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 27.9 10.5 60.3 EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha 30.8 13.4 77.0 Galera 334, BP (standard) 0.3 l / ha 26.1 8.7 50.0 Control - 17.4 - - NDS ₁₀ 1.90

The yield of spring rapeseed during the processing of synergistic herbicidal compositions in the budding phase is given in table. eight.

Table 8

Experience option Drug dose Yield (oilseeds), centners per hectare Protected yield centners per hectare % of control EMSM + PKR + ETD-90 (Trend® 90) 10 g / ha + 30 g / ha + 0.2 l / ha 17.1 1.7 10.3 EMSM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha 18.7 3.3 21.4 Galera 334, BP (standard) 0.35 l / ha 15.0 - - Control - 15.4 - - Nsr 2.1

As evidenced by the data presented in table. 7 and 8, an accounting of the productivity of spring rape showed a significant difference in the level of economic efficiency of the synergies studied - 6 029695

herbicide mixtures depending on the phase of development of the culture. Thus, when using synergistic herbicidal formulations in the phase of 2-3 pairs of leaves, the highest yield of rape was obtained, significantly exceeding the yield with the reference Galera 334 herbicide, BP at a dose of 0.35 l / ha. However, when applying the studied synergistic herbicidal compositions in the phase of culture budding, a culture was inhibited and, as a result, a significant decrease in yield compared with the phase of 2-3 pairs of leaves.

These data well demonstrate that, despite the high biological efficacy of the studied herbicides against the complicated weed coenosis, when used in the phase of budding the synergistic herbicidal composition EMSM + CRP + ETD-90 (Trend®90) at a dose of 10 g / ha + 60 g / ha +0.2 l / ha is marked by the inhibition of the spring rapeseed itself, and, as a result, a slight decrease in its yield. However, at this time of application, the synergistic herbicidal composition of the EMCM + CRP + arabinogalactan 10 g / ha + 30 g / ha + 0.2 g / ha showed a statistically provable yield increase.

Attention should be paid to the fact that the reference drug Galera 334, BP at a dose of 0.35 l / ha during this period of use showed a toxic effect on spring rape, which led to a decrease in crop yield.

The synergistic herbicidal composition etametsulfuron-methyl + picloram + arabinogalactan in the combination of components 10 g / ha + 30 g / ha + 0.2 g / ha demonstrated the highest ability to cope with the greatest number of weeds in spring rape crops, including Mari white, chamomile, odorless, field-leavened, highlander vyunkovomu, common year, which led to an increase in the mass of the protected yield to 27.9-30.8 c / ha. These indicators were 1.8-4.7 centners / ha higher than in the processing of spring rapeseed with the reference drug Galera 334, BP.

It should be noted that the effective dose of the proposed composition of herbicides is 2.9 times lower than the reference drug Galera 334, BP, which practically removes the problem of negative aftereffect from its use on sensitive crops.

When conducting field plot studies, it was rather unexpected that a synergistic herbicidal composition, additionally containing arabinogalactan in doses of 0.1-0.2 g / ha, at various doses of application, as well as in all the vegetation phases studied, steadily shows a tendency to increase economic efficiency in protecting spring rapeseed crops from a complex multi-species cenosis of weeds.

Thus, it is advisable to formulate a new synergistic herbicidal composition in the form of water-dispersible granules (VDG), with a molar ratio of active substances of etametsulfuronmethyl and piclorama 0.15-0.21: 1 with a content of arabinogalactan in the composition of 0.1-0.2 weight. %

The best use of the invention.

A paddle mixer was charged with 156 g of ethametsulfuron-methyl with technical purity of 96% (SL8 97780-06-8), 649 g of dimethyl ethanolamine 4-amino-3,5,6-trichloropyridine-2-carboxylic acid (DMEA piclorama) 1918-02-1 technical purity of 95% (SL8 1918-02-1), 2 g of arabinogalactan (TU 9325-00870692152-08), 30 g of disperser TEK8REK8E®2020 of NiShktai No11aib VU, 25 g of wetter TECUET®1004 of Niptap No11aib VU, 73 g of amorphous silicon dioxide grade BS-100 (GOST 18307-78), 50 g of kaolin for pesticides GOST 12500-67. The resulting mixture is fed into a pin mill and grind for 30-45 minutes. The resulting mixture is granulated on a plate granulator with the addition of water or an extrusion method, and then dried to a residual moisture content of 1.0-1.5 wt.%.

The obtained water-dispersible granules of a synergistic herbicidal composition, conventionally called Etamaster Super, VDG (150 g / kg etametsulfuron-methyl + 450 g / kg piclorama), have a light gray color, bulk density of 1.13 g / cm ³ and contain ethemsulfuron-methyl with peak-loram in a molar ratio of acid equivalent of 0.209: 1 and 0.2% by weight. arabinogalactan.

The venue for competitive testing of the synergistic herbicidal composition Etamaster Super, VDG - Russian Federation, Moscow region, Odintsovsky district, experimental field of the GNU VNIIF, the vegetative season of 2013.

Characteristics of the soil: sod-podzolic, with a humus content of 2.5%, pH of _water . 5.8; EKO 11 mg / 100 g soil. Precursor: pure steam.

Soil tillage: autumn plowing (September 2012) to a depth of 18–20 cm with a dumping plow GSh-35, spring cultivation with a KGSh-4 cultivator to a depth of 5–6 cm, pre-sowing harrowing to a depth of 5–8 cm.

Culture: spring rapeseed varieties MOBILE CL. Seeding rate: 4.5 kg / ha. Sowing date 28.05.2013, the time of emergence of shoots 09.06.2013

Activities to care for experimental crops were typical summer rape cultivation under European Nechernozemie: mineral fertilizers (ΝΡΚ) ₆₀ presowing cultivation, cultivation of seedlings with insecticide treatment Fastak, TBE (0.15 l / ha) against crucifer flea beetles and Mousson RMC (1.0 l / ha) against rapeseed flower beetle; treatment with elastic polymer glue, CE (1.0 l / ha) in order to prevent cracking of the pods. The treatment of spring rapeseed with experienced herbicides was carried out in the phase of 2-3 pairs of true leaves of the crop.

- 7 029695

Weediness of experimental crops of spring rape before treatment with the synergistic herbicidal composition Etamaster Super, VDG is given in Table. 9.__

Types of weeds Development phase Height, cm Debris Level number of pieces / m ² % of the total amount Ma summer White Mari (sieporIit a1bit b.) 2-3 l. 2-5 74 71.1 Field thorns (8reg% and 1a b. B.) cotyledons 2 whorls 3-10 eight 7.7 Chymyanka officinalis (Ritapa about $ 1 ST. B.) 1-2 l. 4-5 five 4.8 Highlander Convolvulus (Po1uuopit sotoRpyiya b.) 1-2 l. 4-6 3 2.9 Chamomile odorless (ΜαΙήοαήα tochoga b.) seed pot 2-3 3 2.9 Fragrant chamomile (Ma1psapa ta1psag'yuyteya (lezz.) RoCheg) seed pot 1-4 2 1.9 Common hedgehog (EsItosYoa sgiz ^ aSh (L.) Weiuu.) tillering 2-4 2 1.9 Field field (ΤΜαζρΐ atepee b.) socket 3-4 one 1.0 Highlander pochuchuyny (Ro1u% opy regisapa b.) 2-4 l. 4-8 one 1.0 Field Violet (ΡΐοΙα atepyag Mitt.) cotyledons 2 l. 1-2 one 1.0 Shepherd's purse ordinary. (Saryaecha яbyaa-rayaYuPya (L.) Me4.) socket 3-4 one 1.0 Wild radish (VarIapiya peregrataSgit 1D 2-4 l. 8-10 one 1.0 The star is average (OChCHAPa tesIa (Τ ·) νίίί.) 3-4 l. 1-3 one 1.0 To me aged Chistets marsh (FWI luya ra1ii1pya b.) 3-4 l. 3-6 one 1.0 Total 104 100.0

Processing Time: June 27, 2013. The multiplicity of treatments is once. Method of application: continuous ground spraying of vegetative plants. Apparatus used: ORSH-2 (developed in the Department of Herbology, GNU VNIIF). Working fluid consumption: 200 l / ha.

The scheme of the experiment is given in table. ten.

Table 10

A drug Dose Etamaster Super, VDG 0.065 kg / ha Etamaster Super, VDG + ETD-90 (Trend®90) 0.08 kg / ha + 0.2 l / ha Galera 334, BP (standard) 0.35 l / ha Control without herbicides

Dates of registration of harmful objects: June 27 (initial contamination), July 27 (30 days after treatment), August 12 (45 days after treatment) and October 3 (before harvesting the crop). Methods of accounting: quantitative and quantitative-weight methods on accounting sites of 0.25 m ² in size, 4 sites in each plot ("Guidelines for field testing of herbicides in crop production". M., 1981).

Method of harvesting and accounting of the harvest: in sheaves, from 1 m ² in two places of each plot with 4 replications. Threshing sheaves was carried out using a small-sized thresher and fan. Statistical data processing was carried out by the method of variance analysis.

On the harvest date (October 9, 2013), the synergistic herbicidal mixture was in effect from the moment of spraying throughout the growing season of the crop.

It should be noted that the growing season of 2013 was characterized by an abundance of precipitation, which contributed to the intensive growth and development of weeds and their level of weediness for rapeseed.

Evaluation of spring rapeseed infestation after treatment with synergistic herbicidal compositions Etamaster Super, EDC at a dose of 0.065 kg / ha and Etamaster Super, VDG + ETD-90 (Trend®90) at a dose and 0.08 kg / ha in the phase of 2-3 pairs of leaves culture is presented in table. eleven.

- 8 029695

Table 11

Experience option Herbicide Dose Debris Reduction debris % of control pcs / m ² I g / m ² by count by weight Accounting litter nyakov 30 days after treatment (July 27) Etamaster Super, VDG 0.065 kg / ha 14 50.2 85.4 93.6 Emamaster Super, VDG + ETD 90 0.08 kg / ha + 0.2 l / ha 15 93.1 84.4 88.1 Galera 334, BP (standard) 0.35 l / ha 26 158.6 72.9 79,8 Control without herbicides - 96 784.4 - - Accounting weeds after 45 days after processing (12th of August) Etamaster Super, VDG 0.065 kg / ha ten 21.6 91.1 98.3 Emamaster Super, VDG + ETD 90 0.08 kg / ha + 0.2 l / ha 14 40.6 87.5 96.9 Galera 334, BP (standard) 0.35 l / ha 31 140,8 72.3 89.1 Control without herbicides - 112 1290.1 - - Accounting weed before harvesting crops (03 October one) Etamaster Super, VDG 0.065 kg / ha four 4.2 89.5 97.5 Emamaster Super, VDG + ETD 90 С ·, 08 kg / ha + 0.2 l / ha 6 14.2 84.2 91.5 Galera 334, BP (standard) 0.35 l / ha ten 37.2 73.7 77.6 Control without herbicides - 38 166.2 - -

In order to obtain information on the possible toxicity of the synergistic herbicidal composition Etamaster Super, EDC for cultivated plants, systematic visual observations were made of the treated plots. Signs of phytotoxicity preparations for rapeseed plants were not found.

At the date of processing of spring rape crops in the phase of 2-3 pairs of leaves (06.27.2013) in the agrophytocenosis there were 14 species of weeds with a total population of 104 pcs / m ² (see table. 9). The juvenile species were represented primarily by such species as white mar (74 pieces / m ² or 71.1% of the total amount), field thorium (8 pieces / m ² or 7.7%) and medicinal smoke (5 pcs. ./m ² or 4.8%). Of the perennial species, individuals of the Chistitsa marsh were rarely encountered. Other species of weeds characteristic for this agro-climatic zone (mountaine-eel moth, chamomile odorless, common cinnamon, mountaineer moth, field violet, star-sprout average) were observed in this period in an insignificant amount (from 1 to 3 pcs / m ² ).

The evaluation of the biological efficacy of the synergistic herbicidal composition Etamaster Super, EDC (07.27.2013) revealed the following features of the phytotoxic effect on the components of agrophytocenosis. As the data table. 10 after 30 days after applying synergistic herbicidal compositions Etamaster Super, EDC and Etamaster Super, EDC + ETD 90 in the studied doses of 0.065 kg / ha + 0.2 l / ha and 0.08 kg / ha + 0.2 l / ha were observed reduction of contamination by 93.6 and 88.1%, respectively. The use of the reference drug Galera 334, BP at a dose of 0.35 l / ha provided a reduction in total debris by 79.8%. During this period, the total background of contamination of spring rapeseed control crops reached 96 pcs / m ² , and the elevated phytomass was 784.4 g / m ² . At the same time, white mart accounted for 450 g / m ^{2 of} produced above-ground phytomass, and quantitative participation reached 52 pcs. / M ² . Chamomile was odorless (16 pieces / m ² ; 180.8 g / m ² ), Highlander bindweed (6 pieces / m ² ; 36.2 g / m ² ) and Highlander (4 pieces / m ² ; 34.6 g / m ² ). The share of the remaining weed plants in the produced biomass varied from 7.4 to 22.8 g / m ² .

When the weeds were first taken into account, 30 days after the treatment with synergistic herbicidal compositions, Etamaster Super, EDC and Etamaster Super, VDG + ETD 90 mar white reduced the share by 96.3 and 95.0%, respectively; in the variant with the reference drug Galera 334, BP (0.35 l / ha), this figure was 76.8%. Convolvulus mountaineer, common gooseberry and fragrant chamomile were practically destroyed on all experimental plots. Pomegranate pochachuyny reduced the share when exposed to the synergistic herbicidal composition Etamaster Super, EDC by 64.7% (dose of 0.065 kg / ha) and 24.9% (0.08 kg / ha). Herbicide Etamaster Super, VDG destructively acted on the odorless chamomile, ensuring its complete destruction, while on the variant with the standard, this indicator was 79.8%.

On the 45th day after the treatment with synergistic herbicidal compositions, favorable rainy weather caused the rapid growth of weed components in rapeseed. During this period, 112 weed plants accounted for 1 m ^{2 of the} control plot, and the above-ground mass of weed phytocenosis was 1290.1 g / m ² . At the same time, along with the predominant quantitative participation of the Mari white (614.8 g / m ² ), the mountaineer's moth (191.0 g / m ² ) and a beautiful picnic produced a significant above-ground phytomass (164.0 g / m ² ); Chamomile odorless (92.8 g / m ² ) and common cinnamon (88.2 g / m ² ) were significantly inferior to them. On the other species, the mountain bindweed, dymyanka (medicinal), the mountaineer, the fragrant chamomile and others accounted for 10 to 29.0 g / m ² . The impact of synergistic herbicidal compositions Etamaster Super, EDC at a dose of 0.065 kg / ha and Etamaster Super, EDC + ETD 90 at a dose and 0.08 kg / ha resulted in a decrease in the mass of Mari white by 99.1 and 98.8%, while As the reference herbicide of the Galéra 334, BP reduced the weight of this species by 85.5%. The phytotoxic effect of Etamaster Super, VDG and Galera 334, BP adversely affected the growth and development of the moth pickler. The use of synergistic herbicidal compositions Etamaster Super, EDC at a dose of 0.065 kg / ha and Etamaster Super, EDC + ETD 90 at a dose and 0.08 kg / ha reduced the aboveground phytomass of this weed by 96.3 and 98.7%, respectively, and in the variant with the use of the reference drug Galera 334, the Highlander of the Pochechuni was destroyed by half 9 029695

ness. The high biological effect (complete destruction) showed a synergistic herbicidal composition Etamaster Super, EDC on the species of picnic and chamomile odorless; the impact of the drug Glera 334, BP led to a decrease in phytomass of the pickler by 93.3%, and chamomile odorless by 64.9%. As a result of the impact of the synergistic herbicidal composition Etamaster Super, EDC and the Galera reference standard 334, BP was completely destroyed by the red leaf tree and field bindweed. The most resistant to the phytotoxic effect of the synergistic herbicidal composition Etamaster Super, EDC were the midriest starfish and the mountaineer bird which do not play a noticeable role in the life of the agrophytocenosis of this agricultural crop. In this case, the decrease in weed phytomass was from 51.7 to 69.0% and from 72.9 to 75.7%, respectively. Abnormal climatic conditions associated with heavy rainfall, caused the peculiarity of weeds in the last term of its accounting before harvesting spring rape. The mass of an ordinary cinnamon on the control was 54 g / m ² , a beautiful pikulnik 34 g / m ² , and the newly growing chamomile odorless 20.4 g / m ² . Much inferior to them in the production of aboveground phytomass was white (8.6 g / m ² ), an average star wheel (8.4 g / m ² ) and a blue cornflower (7.2 g / m ² ). The overall decrease in weed infestation (by weight) during this period as a result of the after-effects of using synergistic herbicidal formulations Etamaster Super, EDC at a dose of 0.065 kg / ha and Etamaster Super, EDC + ETD 90 at a dose and 0.08 kg / ha was 97.5 and 91.5%; the use of Galera 334, BP provided a decrease in total debris only by 77.6%.

The effect of synergistic herbicidal compositions Etamaster Super, EDC at a dose of 0.065 kg / ha and Etamaster Super, EDC + ETD 90 at a dose of 0.08 kg / ha on the yield of rapeseed treated in the phase of 2-3 pairs of crop leaves are given in Table. 12.

Table 12

Option Herbicide dose, kg / ha Yield (oilseeds), centners per hectare Protected yield centners per hectare % of control Etamaster Super, VDG 0.065 kg / ha 12.93 4.76 50.5 Etamaster Super, VDG + ETD-90 (Trend®90) 0.08 kg / ha + 0.2 l / ha 12.08 3.91 47.9 Galera 334, BP (standard) 0.35 l / ha 9.50 1.33 16.3 Control without herbicides - 8.17 - - NDS ₁₀ 1.6

As it follows from the data given in table. 12, the high biological efficacy of synergistic herbicidal compositions Etamaster Super, EDC at a dose of 0.065 kg / ha and Etamaster Super, EDC + ETD 90 at a dose of 0.08 kg / ha caused their substantial economic value. So, the productivity of spring rape when using Etamaster Super, EDC was 12.93 centners / ha, and Etamaster Super, EDC + ETD-90 (Trend 90) at a dose of 0.08 kg / ha - 12.08 centners / ha. At the same time, the yield of spring rapeseed in control without herbicide treatment was 8.17 centners / ha. The highest protected yield was obtained using the synergistic herbicidal composition Etamaster Super, EDC + ETD 90 at a dose of 0.08 kg / ha (3.91 centners / ha), and the synergistic herbicidal composition Etamaster Super, VDG at a dose of 0.065 kg / ha-4, 76 kg / ha. When applying the optimal dose of synergistic herbicidal composition Etamaster Super, EDC + ETD-90 (Trend® 90) at a dose of 0.08 kg / ha, the protected yield increased compared to the control by 50.5%, and Etamaster Super, EDC at a dose of 0.065 kg / ha - by 47.9%.

Thus, a high biological and economic efficiency of the synergistic herbicidal composition Etamaster Super, EDC in spring rape crops in the harsh weather conditions of the 2013 season of the European Non-Chernozemie, which significantly exceeded the standard Galera herbicide, BP. An even higher biological and economic efficiency was demonstrated when using the synergistic herbicidal composition Etamaster Super, EDC with the addition of ETD 90 surfactant (Trend® 90) to the working solution.

The essential features of the invention are: a synergistic effect with a combination of agrochemically active components ethamethulfuron-methyl and piclorama, manifested in the molar ratio of 0.687-0.736: 1, with arabinogalactan content in the composition 0.1-0.2 wt.%, Applying a synergistic herbicidal composition to weed plants to be destroyed in an effective amount, preferably 0.065-0.08 g / ha, as well as an additional additive to the working solution of the ETD-90 surfactant (Trend® 90) in an amount of 0.2 l / ha.

Achieved technical result is a synergistic herbicidal composition Etamaster Super, EDC, which has high biological and economic efficiency in suppressing a wide range of weed (undesirable) in rapeseed, as well as a method of suppressing undesirable vegetation in spring rapeseed crops by applying a synergistic herbicidal composition to the plants to be destroyed an effective amount, preferably 0.065-0.08 g / ha and additional addition of surfactants to the working solution ECD-90 (Trend®90) at 0.2 l / ha.

Information sources:

1. U.S. Patent No. 4,548,638 Α01Ν 47/28 (20060101); 01Ν 47/36 (20060101); Ο07Ό 521/00 (20060101); C07JO 251/52 (); Α01Ν 043/70, 1985.

2. ΕΡ8Α 1igga1 2014; 12 (1): 3508.

- 10 029695

3. Belgian Patent No. 628487 C07I213 / 79; C07I213 / 81; C07I213 / 84; C07I213 / 86, 1963.

3. Κονίαν hero! Og 1st assyue 5i1k pse1ogat. Rshaikai ίη Шс §1aplishd Сштййее оп 1йе Ройой Skipupy Lp0ta1 NanaN a! ik teyupd op 14 Magsy 2008 уη u1ee o! 1st shs1ikyup oh! p0s1ogat Апη Apache I o! Iyyyuye 91/414 / EEC. Byr: //e.eigora.ee/5appo_re5ic1cе5/ryb11c/? Euen1 = asyuye5b51apse.je1a11

4. Kudaykina Irina Vasilievna "Peculiarities of picloram behavior (4-amino-3,5,6-trichloropicolinic acid) in plants differing in the degree of sensitivity to this herbicide." Abstract of dissertation for the degree of candidate of biological sciences. Moscow - 1981. Inter: //eaήBere ^5.ηeί/o5oBeηηo5Y-roueyee ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^ 51оίу-у- ^ а5ΐеη ^ уаЬга / Пс11aui5с1й115ua-ro-51еresh-с1шу # гх // 2у66уУ1кй.

5. US patent No. 438113, 01Ν 47/36; C07I 239/42; C07I 239/46; C07I 239/52; C07I 251/16; C07I 251/46, 1983.

Claims (3)

CLAIM 1. A synergistic herbicidal composition for suppressing undesirable vegetation in spring rape crops, containing a combination of active ingredients etametsulfuron-methyl and piclorama in the optimum molar ratio of active ingredients 0.19-0.21: 1 with a content of 0.1 -0.2 wt.%. 2. The method of suppressing unwanted vegetation in spring rape crops by applying a synergistic herbicidal composition according to claim 1 to the plants to be destroyed in an effective amount, and a surfactant Trend 90 is added to the working solution in an amount of 0.2 l / ha. 3. The method of suppressing unwanted vegetation in crops of spring rape under item 2, characterized in that the synergistic herbicidal composition is applied to plants to be destroyed in an amount of 0.065-0.08 g / ha.