RU2543816C1 - Composition for improving pesticide effectiveness - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: composition for improving effectiveness of pesticides includes (wt %): acetic acid 7-15; polybasic acid 1-7; dimethyl alkylamine 5-17; monoethanolamine 0.1-1.7; super-wetting agent 0-4; propylene glycol 10-25; as well as oxyethylated primary fatty alcohols C8-C10, containing 4-10 ethoxyl groups, 19-45; oxyethylated -oxypropylated fatty alcohol C10-C12, containing 5-7 moles ethylene oxide, 2-4 moles propylene oxide, 5-20.

EFFECT: composition for improving effectiveness of pesticides reduces surface tension of existing pesticides, thereby improving wettability and stability of working solutions by creating an optimum pH level of the working solution.

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Description

The invention relates to compositions intended to increase the effectiveness of pesticides, and may find application in agriculture.

Known additive to working solutions of pesticides "Oxanol-agro" (wetting agent), designed to increase the biological effectiveness of herbicides, including the active substance - ethoxylate aliphatic alcohols fraction C8-C10. Manufacturer OAO Khimprom, TU 2483-372-05763441-2004 (website http://www.agroxxi.ru/gosudarstvenyi-katalog-pesticidov-i-agrohimikatov/oksanol-agro-zh.html).

The wetting agent "Oksanol-agro" is used to increase the effectiveness of crop protection products against weeds (herbicides), diseases (fungicides and seed protectants), and harmful insects (insecticides). A wetting agent can also be used to increase the biological effectiveness of plant growth regulators that process vegetative plants or seeds.

A synergistic insecticidal composition is known comprising a toxic ingredient that is directly responsible for the death or significant inhibition of insect pests, and a target ingredient related to growth regulators and plant resistance inducers, while at least at least one insecticide selected from the group of pyrethroids, or neonicotinoids, or avermectins, in an amount of 50% of the consumption rate allowed for use on Each of the cultivated crops, and the target ingredient is an effective dose of the growth regulator and plant resistance inducer Zircon, consisting of chicory acid, chlorogenic acid and caffeic acid in a weight ratio of 70-81: 14-16: 4-6, respectively a concentration in the mixture of 0.009-0.11 mg / ml and a surfactant based on ethoxylated alkyl phenol with a ratio of the components of the mixture 1: 1. RU 2326533, IPC A01N 25/32, А01Р 7/00, А01Р 21/00, publ. 06/20/2008.

However, this target ingredient of the composition is applicable exclusively in conjunction with insecticides.

Known additive to working solutions of pesticides, namely ″ Wetting agent for pesticides ″ based on a nonionic surfactant, including: ethoxylated C ₆ -C ₁₂ primary fatty alcohols containing 4-10 ethoxyl groups, C ₂ -C ₁₂ fatty alcohols, polyglycol with a molecular weight of less than 2000 and water. However, it may additionally contain urea. RU 2205540, IPC 7 A01N 25/30, publ. 06/10/2003.

However, this additive does not regulate the pH of the working solutions of pesticides.

Known additive to working solutions of pesticides SPARTAN, consisting of polyoxyethylene monolourate, alkoxylated fatty amine, acetic acid (Internet site www.yankina-agro.ru/doc/spartan_s_glifosatami2.pdf).

″ Spartan ″ is a special one of its kind, not an ionic adjuvant based on the alkoxylated chemistry of fatty amines. It is used to improve adherence / adhesion, wetting, penetration and rain resistance of both plant protection products and microelements (ZhKU - complex fertilizers for foliar top dressing), as a technical additive to protectants, fungicides, insecticides, plant growth stimulants.

However, the composition of this Supplement includes a highly toxic component - an alkoxylated fatty amine, in addition, aqueous solutions of this Supplement have an increased surface tension.

The closest in technical essence and the technical result achieved is a composition for increasing the efficiency of sulfonylureas based herbicides selected from the group consisting of the following preparations: granstar clay, chlorosulfuron diethyl ethanol salt and chlorosulfuron potassium salt containing hydroxyethylated alkyl phenols as nonionic surfactants alcohols, as ionogenic surfactants, sulfonol or calcium lignosulfonate, as well as water and kerosene.

This composition is mixed with the finished herbicide formulation immediately before use and the tank mixture thus obtained is used for treating plants.

As nonionic surfactants, ethoxylated alkyl phenols (OP-4, OP-7, OP-10), and ethoxylated alcohols (OS-20) are used as emulsifying and stabilizing agents that improve the distribution of the drug over plant surfaces. As ionic surfactants, calcium alkyl, aryl sulfonates, for example sulfanol or lignosulfonates, are used as wetting and emulsifying agents that improve the distribution of the drug over plant surfaces. Kerosene is used as a solvent together with co-solvent with water. In this mixture, kerosene acts as a cleaner of the surface treated with the drug, accelerating the penetration of the herbicide into the plant. To improve consumer properties, a fragrance and a stabilizer, for example ethanolamine, can be added to the composition. RU 2173518, IPC 7 A01N 47/36, A01N 25/30, A01N 25/02, publ. 09/20/2001

However, this composition is used only with sulfonylureas based herbicides, which limits its scope.

The invention solves the problem of expanding the range of compositions to increase the effectiveness of pesticides (hereinafter the Compositions) by adding them to working solutions of pesticides, which enhance the action of pesticides, due to better compatibility and the synergistic effect manifested by the interaction of the ingredients of the composition, to improve the stability of working solutions by creating the optimal pH of the working solution when using this composition, improve wettability.

The technical result consists in increasing the effectiveness of known pesticides by improving the wettability, increasing the stability of working solutions by creating the optimal pH level of the working solution.

The technical result is achieved by the fact that the composition for increasing the effectiveness of pesticides, including nonionic surfactants and water, according to the invention additionally contains acetic acid, polybasic acid, dimethylalkylamine, monoethanolamine, super-wetting agent, propylene glycol, and as nonionic surfactants contains ethoxylated primary C ₈ -C ₁₀ fatty alcohols containing 4-10 ethoxyl groups, ethoxylated, hydroxypropyl fatty alcohol C ₁₀ -C ₁₂ (containing 5-7 m . Leu ethylene oxide, propylene oxide 2.4 mol) in the following ratio of the starting components in weight%:

Ethoxylated primary fatty alcohols C ₈ -C ₁₀ , containing 4-10 ethoxyl groups 19-45 Hydroxyethylated, hydroxypropylated fatty alcohol C ₁₀ -C ₁₂ containing 5-7 moles of ethylene oxide, 2-4 moles propylene oxide 5-20 Acetic acid 7-15 Polybasic acid 1-5 Dimethylalkylamine 5-17 Monoethanolamine 0.1-1.7 Propylene glycol 10-25 Super wetting agent 0-4 Water Rest

Comparison of the claimed Composition with a known composition allows us to conclude that it meets the criterion of "Novelty", as in this case contains a new set of components in a new quantitative ratio.

The indicated limits of the ratios between the components of the Composition are determined experimentally and are optimal from the point of view of achieving a positive technical result.

The composition is obtained by mixing the components of ethoxylated and oxyethylated-hydroxypropylated fatty alcohols, propylene glycol, water in calculated quantities. Stirred for several minutes until a homogeneous mass at room temperature, then load acetic acid, polybasic acid. Stir until completely dissolved (e.g. citric acid). Then dimethylalkylamine is added (a slight heating is observed), monoethanolamine to a pH of 5.0-5.5. The last stage - add a super-wetting agent. Stir until a clear, homogeneous mass is obtained. The compositions are shown in table 1.

The following raw materials were used to obtain the Composition: as ethoxylated C ₈ -C ₁₀ fatty alcohols containing 4-10 ethoxyl groups, Oxanol KD-6 TU 2483-328-05763441-2000 was used; as an ethoxylated, oxypropylated fatty alcohol C ₁₀ -C ₁₂ containing 5-7 moles of ethylene oxide, 2-4 moles of propylene oxide, Tenzyfix D33, manufactured by Omnichem, Belgium; Silvet HS-312 supercooler, stable in the range of pH 3-12, manufactured by ″ Momentive ″, Germany. The chemical structure is organopolysiloxane; monoethanolamine TU 2423-002-78722668-2010; propylene glycol TU 6-09-2434-81; alkylphosphoric acid "Phosphenox" TU 2484-537-05763441-2011; dimethyldodecylamine (dimethylalkylamine) - import manufacturing China. Mass fraction of the main substance not less than 98%; acetic acid - GOST 61-75; citric acid - GOST 908-2004; Tribune TU 2445-014-59119721-06, dry fluid suspension of 750 g / kg tribenuronomethyl (representative of sulfonylureas); Bifor Progress TU 2445-017-59119721-07 (emulsion concentrate, etofumezate 112 g / l, phenmedifam 91 g / l, desmedifam 71 g / l); Bifor 22 TU 2445-029-59119721-10 (emulsion concentrate, phenmedifam 160 g / l, desmedifam 160 g / l); Golden Ring TU 2445-036-59119721-12 (water concentrate, diquat ion 150 g / l); the drug "Akiba", VSK, 500 g / l, TU 2441-035-59119721-11 (mass content of the active substance, g / l: imidacloprid - 500 g / l); preparation “Strike Forte ″, KS, 225 g / l tebuconazole +75 g / l flutriafol, TU 2443-034-59119721-11.

The composition was applied by adding pesticides or a mixture of pesticides (tank mixture) to the working solution immediately before use in accordance with the regulations for the use of the pesticide. The effect of the composition on the biological effectiveness of pesticides was tested on:

Desicante Golden Ring - 0.6% solution of the drug,

herbicide Bifor Progress - 0.75% emulsion of the drug;

herbicide Bifor 22 - 0.65% emulsion of the drug;

herbicide Tribune - 0.075% suspension;

fungicide Strike Forte - 0.15% suspension;

Akiba insecticide - 0.4% suspension.

Data on the effect of the Composition on the biological effectiveness of pesticides are given in Table 5-7.

Table 2 shows the pH values of the tank mixtures prepared by adding calculated, in accordance with the recommended regulations, quantities of these pesticides, Compositions and water.

The preparation of the tank mixture is as follows: the preparation (for example) of the Golden Ring in the amount of 0.6 g is added to 99.25 g of water, stirred until a homogeneous mass, then 0.15 g of the Composition is added. Stir until a homogeneous mass.

The data in Table 2 show that at a composition concentration of 0.05-0.15%, the pH values of the tank mixtures stabilize within 5.3-6.6 pH units.

Solutions for the study of surface tension were prepared in the same way as described above - by adding the calculated, in accordance with the recommended regulations, quantities of these pesticides, Compositions and water.

The data in Table 3 demonstrate that for tank solutions of Golden Ring and Tribun preparations, when the Composition is added, a significant decrease in surface tension occurs, which affects the wettability of the treated plants and biological efficiency. In the case of the Bifor Progress and Bifor 22 preparations, the decrease in the surface tension is not noticeable due to the fact that the preparations themselves form tank mixtures with a low surface tension when added to water. For Akiba and Strike Forte preparations, also due to the low surface tension without adding the Composition, the decrease in surface tension is 1-7 N / m.

The data in Table 4 demonstrate the spreading of a drop of aqueous solutions of the Compositions on the surface of a polymer film simulating a sheet surface. (When conducting such studies on the leaves of plants themselves, it is not possible to achieve statistically valid results and to reveal patterns due to the unevenness of the leaf surface.) At a working concentration of 0.1% for the Composition (composition 1), the diameter of the droplet is 1.5 times larger than the solution , the area of contact with the sheet is 2.25 times larger; for the Compositions (composition 2) and (composition 3), the area of contact with the sheet is 6.25 times larger, respectively.

The experiment on sugar beet crops, shown in Table 5, was carried out in 2012 in the Krasnodar Territory. Common weeds are uplifted shiritsa, white gauze, field mustard, ragweed, ragweed and blue chickens. The total weediness of crops ranged from 55 to 118 ind./m ² . When the herbicide was applied twice (against dicotyledonous weeds), Bifor Progress (without adding the Composition), the decrease in the total weediness of crops reached 66.6% before harvesting, the death of dicotyledonous weeds was 85.5% before harvesting. When applying the Bifor Progress herbicide twice, together with the Composition (composition 1) (0.1% solution), a decrease in the total weediness of crops reached 95.7% before harvesting, which is 29% higher than this indicator achieved without the use of the Composition. The death of dicotyledonous weeds was 98.5% before harvesting, which is 13% higher than the result obtained without using the Composition.

TABLE 6 The effect of the composition on the biological effectiveness of the pesticide GOLDEN RING when used as a desiccant on soybean crops (Voronezh region, 2012). Processing date: 08/22/2012 Experience Options Accounting dates The stalks Leaves The degree of drying of plants,% The moisture content of the seeds,% In total, pieces on 25 plants % dry In total, pieces on 25 plants % dry The control 08/26/12 58 0 449 0 0 32.9 08/30/12 54 0 413 3.3 0 32,4 09/03/12 49 0 378 10.7 0 32,3 Golden Ring, CE * (2 l / ha) 08/26/12 52 0 386 53.6 40.5 30.5 08/30/12 60 0 128 61.9 56 25.8 09/03/12 49 80 93 72.5 74 28,4 Golden Ring, CE (2 l / ha) +20 ml / ha composition 3 08/26/12 63 0 457 69.3 38.3 thirty 08/30/12 63 0 278 72.0 44,4 21,4 09/03/12 65 84 102 76.7 76,4 fourteen Golden Ring, CE (2 l / ha) +25 ml / ha composition 3 08/26/12 60 0 411 75,4 44,4 25.3 08/30/12 58 0 301 71.8 53.5 14.1 09/03/12 64 86 99 85.7 76.1 16.7 Golden Ring, CE (2 l / ha) +50 ml / ha composition 2 08/26/12 63 0 322 81.8 47.2 24.7 08/30/12 65 0 217 85.7 64 12.5 09/03/12 67 88 9S 86 78.9 16.6 Golden Ring, CE (2 l / ha) +100 ml / ha composition 2 08/26/12 60 0 378 87.1 68.8 20.5 08/30/12 58 64 296 99.5 77,2 12.7 09/03/12 60 92 73 one hundred one hundred 16,4 Golden Ring, CE (2 l / ha) +200 ml / ha composition 2 08/26/12 63 0 380 98.4 79.3 21.6 08/30/12 72 81 78 one hundred one hundred 12.1 09/03/12 65 one hundred 28 one hundred one hundred 15.8 Golden Ring, CE (2 l / ha) +300 ml / ha composition 2 08/26/12 65 0 302 96 78,4 20,4 08/30/12 62 81 69 one hundred one hundred 12.3 09/03/12 60 one hundred 34 one hundred one hundred 16,0 * CE - emulsion concentrate

The experiment on soybean crops, shown in Table 6, was carried out in 2012 in the Voronezh region. For soybean desiccation, Golden Ring was used at the stage of browning of 50-60% of beans and seed moisture - 32.9%.

4 and 8 days after the application of 2 l / ha of desiccant GOLDEN RING (without Composition), the stalks of soy plants were green, and the leaves were dried by 75-84%; the degree of drying of the plants was 53-61.9%. Seed moisture decreased to 25.8%. 12 days after desiccation with Golden Ring (without Composition), 84% of the stems, 92% of the leaves were dried; the degree of drying of the plants was 72.5%; seed moisture - 28.4%.

When using the Golden Ring drug at a normal rate of 2 l / ha, together with 200 ml / ha of Composition 2, the intensity of plant drying increased significantly: dry soybean leaves for 4 and 8 days after desiccation were 99 and 100%, respectively; the degree of drying of the plants was 98.4-100%; seed moisture decreased to 12.1%. After 12 days, the soybean plants were completely dry; seed moisture was 15.8%.

The experiment on crops of spring barley, reflected in Table 7, was carried out in 2012 in the Rostov Region. Weed infestation was 42-92 ind./m ² . Common weeds are ragweed, buckwheat, red buckwheat, white gauze, backed beetle, bristly thistle, field sow thistle, field bindweed.

With the application of the herbicide (against annual dicotyledonous weeds and field creeper), the Tribune is normal 15 g / ha (without adding the Composition), the reduction in the total weediness of crops reached 60.5% a month after treatment, the death of annual dicotyledonous weeds was 78.98%, after 1 , 5 months after treatment, the total weediness of crops was 56.8. The tribune (without addition of the Composition) showed rather high efficiency against field sow thistle, slightly weaker in its pure form acted on white gauze, wormwood, ragweed, and bristle.

When the Tribun herbicide was applied normally 15 g / ha together with 200 ml / ha of Composition 1, the reduction in the total weediness of the crops reached 95.1% a month after the treatment, the death of annual dicotyledonous weeds was 98.2%, and 1.5 months after the treatment, the total the weediness of crops was 94%. The tribune together with 200 ml / ha of Composition 1 showed high biological effectiveness against all weeds present in the plots.

The experiment on spring wheat crops, shown in Table 8, was carried out in 2012 in the Saratov Region on cultivar Saratovskaya 42 against powdery mildew and rust. A single treatment with the Strike Forte fungicide (with a consumption rate of 0.5 l / ha) was carried out in the earing phase (Z55).

When treating crops with Strike Forte (without adding Composition), its efficacy against powdery mildew on the 7th day after treatment was 45.5%, on the 14th day - 29%, on the 28th day - 59% compared with the control . The addition of the Composition (at a consumption rate of 200 ml / ha) increased the biological effectiveness of the fungicide against powdery mildew: 99.2% on the 7th day after treatment, 98.0% on the 14th and 97.4 on 28 th day.

When treating crops with Strike Forte (without adding Composition), its effectiveness against brown rust on the 7th day after treatment was 37.3%, on the 14th day - 69.9%, on the 28th day - 63.0% compared to control. The addition of the Composition (at a consumption rate of 200 ml / ha) provided an increase in the biological effectiveness of the fungicide against brown rust: 99.1% on the 7th day after treatment, 98.9% on the 14th and 98.2 on 28 th day.

The experiment, shown in Table 9, was carried out in 2012 in the Volgograd Region on Rosara potatoes against the Colorado potato beetle. The processing of potato tubers was carried out by the Akib insecticidal dresser (with a consumption rate of 0.1 l / t), the biological efficiency was determined by the decrease in the number of larvae and adults relative to the control on the day of counting after emergence. In 2012, the average number of phytophage in the control on the 7-13-20-27-35 days after the emergence of seedlings was in the range of 11.2-17.4-23.4-18.6-13.5 individuals / plant. The treatment of tubers with Akiba without adding the Composition ensured a decrease in the average phytophage abundance by 7–13–20–27–35 days after emergence to 4.0–8.7–14.9–13.3–10.8 individuals / plant with values of biological effectiveness 64.3% -50.3% -36.2% -28.4% -20.0%, respectively. The treatment of tubers with Akiba with the addition of the Composition at the rate of 200 ml / ha ensured complete destruction of the phytophage on days 7-13-20-27-35 after emergence with the achievement of biological effectiveness of 100% -100% -100% -100% -100%.

Thus, the claimed composition increases the effectiveness of pesticides by improving the wetting of the surface of the leaves of the plants with a working solution and accelerating the penetration of active substances into plants or seeds, optimizing the stability of working solutions of pesticides due to the manifestation of buffering properties, lowering the pH level and inactivation of hard water ions.

TABLE 8 The effect of the composition on the biological effectiveness of the Strike Forte pesticide, KS (75 g / l flutriafol + 225 g / l tebuconazole) when used as a fungicide on spring wheat against a complex of diseases (Saratov Region, 2012). Processing Date: 06/13/2012 Experience option Multiplicity of treatments The processing date is 13.06. Blumeria graminis (powdery mildew) Puccinia triticina (brown rust) 06/20 06/27 07/14 06/20 06/27 07/14 Development,% Efficiency Development,% Efficiency Development,% Efficiency Development,% Efficiency Development,% Efficiency Development,% Efficiency The control - 12.1 - 10.0 - 15.4 - 11.5 - 27.6 - 35,2 - Strike Forte (0.5 L / ha) one 6.6 45.5 7.1 29.0 6.3 59.0 7.2 37.3 8.3 69.9 13.0 63.0 Strike Forte (0.5 l / ha) +20 ml / ha of composition 3 6.4 47.1 6.9 31,0 6.2 59.7 7.1 38,2 7.9 71.3 11.7 66.7 Strike Forte (0.5 L / ha) +25 ml / ha of composition 1 6.6 45.5 7.0 30,0 7.1 53.9 6.6 42.6 7.0 74.6 8.5 75.8 Strike Forte (0.5 l / ha) +50 ml / ha of composition 1 6.1 49.6 5.7 43.0 6.9 55,2 4.0 65,2 5,4 80,4 7.7 78.1 Strike Forte (0.5 l / ha) +100 ml / ha of composition 1 4.3 64.5 4,5 65.0 5.8 62.3 3.9 66.0 4.4 84.0 5.9 83,2 Strike Forte (0.5 L / ha) +200 ml / ha of composition 1 0.1 99,2 0.2 98.0 0.4 97.4 0.1 99.1 0.3 98.9 0.6 98.2 Strike Forte (0.5 L / ha) +300 ml / ha of composition 1 0.1 99,2 0.2 98.0 0.3 98.1 0.1 99.1 0.4 98.5 0.5 98.5

TABLE 9 The effect of the composition on the biological effectiveness of the Akib insecticide, VSK (500 g / l imidacloprid) in the fight against the Colorado potato beetle (Leptinotarsa decemlineata) on potatoes in the Volgograd region Experience option The average number of pests after emergence on day counts, individuals / bush The decrease in the number of pests relative to control after emergence on the days of accounting,% 7 13 twenty 27 35 7 13 twenty 27 35 The control 11,2 17.4 23,4 18.6 13.5 - - - - - Akiba (0.1 l / t) 4.0 8.7 14.9 13.3 10.8 64.3 50.3 36,2 28,4 twenty Akiba (0.1 l / t) +20 ml / ha of composition 3 4.2 6.7 12.0 11.8 9.0 62.5 61.8 48.9 36.6 33,4 Akiba (0.1 l / t) +25 ml / ha of composition 1 1.8 5.3 10.0 8.0 5.2 83.7 69.8 57.2 57.3 61.7 Akiba (0.1 l / t) +50 ml / ha of composition 1 1.7 4,5 9.6 7.7 5,4 85.7 74.1 59.2 58.9 60,2 Akiba (0.1 l / t) +100 ml / ha of composition 1 0.9 1,6 2.6 2,4 1.4 92.3 91.1 87.8 87.2 89.5 Akiba (0.1 l / t) +200 ml / ha of composition 1 0 0 0 0 0 one hundred one hundred one hundred one hundred one hundred Akiba (0.1 l / t) +300 ml / ha of composition 1 0 0 0 0 0 one hundred one hundred one hundred one hundred one hundred

Claims (1)

Composition for increasing the effectiveness of pesticides, including nonionic surfactants and water, characterized in that it additionally contains acetic acid, polybasic acid, dimethylalkylamine, monoethanolamine, super-wetting agent, propylene glycol, and as nonionic surfactants contains hydroxyethylated primary fatty alcohols C ₈ -C ₁₀ containing 4-10 ethoxyl groups, C ₁₀ -C ₁₂ ethoxylated-hydroxypropylated fatty alcohol containing 5-7 moles of ethylene oxide, 2-4 moles of propylene oxide a, in the following ratio of starting components in wt.%:
Ethoxylated primary fatty alcohols C ₈ -C ₁₀ , containing 4-10 ethoxyl groups 19-45 Oxyethylated-hydroxypropylated fatty alcohol C ₁₀ -C ₁₂ containing 5-7 moles of ethylene oxide, 2-4 moles oxypropylene 5-20 Acetic acid 7-15 Polybasic acid 1-5 Dimethylalkylamine 5-17 Monoethanolamine 0.1-1.7 Propylene glycol 10-25 Super wetting agent 0-4 Water Rest