CN115581235B - Weeding composition and application thereof - Google Patents

Weeding composition and application thereof Download PDF

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Publication number
CN115581235B
CN115581235B CN202211178692.XA CN202211178692A CN115581235B CN 115581235 B CN115581235 B CN 115581235B CN 202211178692 A CN202211178692 A CN 202211178692A CN 115581235 B CN115581235 B CN 115581235B
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herbicidal composition
salt
acid
aminopyralid
active ingredient
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CN115581235A (en
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张磊
母玉林
李光亮
刘润峰
曾学彬
叶小妹
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Pilarquim Shanghai Co ltd
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Pilarquim Shanghai Co ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/24—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients to enhance the sticking of the active ingredients
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
    • A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
    • A01N39/04—Aryloxy-acetic acids; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P13/00—Herbicides; Algicides

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to a weeding composition and application thereof, and relates to the field of pesticides, wherein the weeding composition comprises an active ingredient and a synergistic auxiliary agent, and the active ingredient comprises a pyridine carboxylic acid herbicide and an aryloxy-phenoxy propionic acid herbicide; the synergistic agent comprises one or more of humic acid, nitro humic acid, humic acid water-soluble salt and nitro humic acid water-soluble salt; the synergistic assistant accounts for 4-13% of the total weight of the weeding composition. By adding the synergist-humic acid, the problems of photolysis of aminopyralid and 2,4-D preparations and rain wash intolerance of water soluble salts of aminopyralid and 2,4-D are improved, the volatility of aminopyralid and 2,4-D acid ester after application and the drift problem of liquid medicine drops are reduced, the absorption of aminopyralid and 2,4-D active ingredients by weeds is promoted, the weeding effect is improved, the consumption of weeding active ingredients is reduced, the weed control time is effectively prolonged, and the pesticide cost of farmers is reduced.

Description

Weeding composition and application thereof
Technical Field
The invention relates to the field of pesticides, in particular to a weeding composition and application thereof.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Aminopyralid (aminopyralid) is a novel herbicide of the picolinic acid type developed by Tao Nongke, trade name: CHAPARRAL, CLEARVIEW, HOTSHOT. Chemical name: 4-amino-3, 6-dichloropyridine 2-carboxylic acid. Aminopyralid is a synthetic hormone herbicide widely used for weed control in mountain areas, grasslands, planting areas and non-cultivated areas. The degradation is mainly through aerobic microbial degradation and photolysis, DT50 is 0.6d under normal environmental conditions in summer, and the photolysis is mainly ultraviolet light to cause dechlorination and ring fracture.
2,4-D (2, 4-Dichlorophenoxyacetic acid) is discovered and synthesized by Amchem company (Jinzhengda company), is the first herbicide in the world, belongs to aryloxy-phenoxy-propionic acid herbicide, and has the chemical name: 2,4-dichlorophenoxyacetic acid is an artificially synthesized plant hormone, and 2,4-D and salts and esters thereof are efficient, systemic and high-selectivity herbicides and plant growth regulators; at low concentration, the plant growth regulator can promote growth, prevent flower and fruit drop, improve fruit setting rate, promote fruit growth, promote early ripening and increase yield, and can be used as plant growth regulator to reduce fruit drop, increase fruit and prolong storage period of citrus; at high concentrations, the growth inhibition and herbicide properties are exhibited, especially on broadleaf plants. The ultraviolet irradiation causes partial decomposition, thereby reducing the efficacy.
The aminopyralid and 2,4-D are easy to photolyze under the irradiation of ultraviolet light in the environment, so that the dosage is often increased in practical application, and larger application cost is caused for farmers. Meanwhile, the water-soluble salts and acid esters of aminopyralid and 2,4-D are applied in the market, the water-soluble salts have poor adhesion force of pesticides on plant leaves after application, and can be leached to soil layers where weeds are located by rainwater, so that the soil is polluted after long-time use, and environmental pollution is easy to cause; the vapor pressure of the acid ester is low, the medicament is easy to volatilize after the medicament is applied, the medicament effect is reduced, and the environmental pollution is increased.
In view of this, the present invention has been made.
Disclosure of Invention
Object of the Invention
The invention aims to provide a weeding composition and application thereof, which improve the photolysis problem of aminopyralid and 2,4-D preparations and the problem that water-soluble salts of aminopyralid and 2,4-D are not resistant to rain wash by adding synergist-humic acid, reduce the volatility of aminopyralid and 2,4-D acid ester after application and the drifting problem of liquid medicine drops, promote the absorption of weeds to aminopyralid and 2,4-D active ingredients, reduce the dosage of weeding active ingredients while improving weeding effect, effectively prolong the time for preventing and treating weeds, lighten the medication cost of farmers and be beneficial to environmental improvement.
Solution scheme
In order to achieve the aim of the invention, the embodiment of the invention provides a weeding composition, which comprises an active ingredient and a synergistic auxiliary agent, wherein the active ingredient comprises pyridine carboxylic acid herbicide and aryloxy-phenoxy propionic acid herbicide; the synergistic agent comprises one or more of humic acid, nitro humic acid, humic acid water-soluble salt and nitro humic acid water-soluble salt; the synergistic assistant accounts for 4-13% of the total weight of the weeding composition.
Further, the synergistic adjuvant accounts for 5.5 to 9.5 percent of the total weight of the weeding composition, and is optionally 6.4 to 8 percent.
Further, the weight ratio of the active ingredients to the synergistic agent is 1:0.2-0.4, optionally 1:0.25-0.34, optionally 1:0.27-0.32.
Further, the effective component accounts for 1 to 70 percent of the total weight of the weeding composition, alternatively 20 to 32.5 percent, alternatively 20 to 30 percent.
Further, in the active ingredient, the weight ratio of the pyridine carboxylic acid herbicide to the aryloxy-phenoxy-propionic acid herbicide is 1:1-50; alternatively 1:3 to 23; alternatively 1: 6-23; alternatively 1: 12-19; alternatively 1: 14-15.
Further, the weight ratio of the pyridine carboxylic acid herbicide, the aryloxy-phenoxy propionic acid herbicide and the synergistic adjuvant is 1:1-50:0.4-20.5; alternatively 1:3 to 23:1.5-6.5; alternatively 1: 6-23: 2.3-6.5; alternatively 1: 12-19: 3.4-6.4; alternatively 1: 14-15: 4 to 5.
Further, the humic acid water-soluble salt is one or more selected from humic acid sodium salt, humic acid potassium salt, humic acid phosphorus salt, humic acid silicon salt and humic acid ammonium salt.
Further, the water-soluble salt of nitro humic acid is one or more selected from sodium salt of nitro humic acid, potassium salt of nitro humic acid and ammonium salt of nitro humic acid.
Further, the pyridine carboxylic acid herbicide is aminopyralid and/or a water soluble salt of aminopyralid; optionally, the water-soluble salt of aminopyralid is selected from one or more of sodium salt of aminopyralid, potassium salt of aminopyralid, methylamine salt of aminopyralid, triisopropanolamine salt of aminopyralid, triethanolamine salt of aminopyralid, isopropylamine salt of aminopyralid, dimethylamine salt of aminopyralid, ethanolamine salt of aminopyralid, isopropanolamine salt of aminopyralid;
Further, the aryloxy-phenoxy-propionic acid herbicide is one or more selected from 2, 4-dichlorophenoxyacetic acid, 2, 4-dichlorophenoxypropionic acid, 2, 4-dichlorophenoxyacetic acid water-soluble salt and 2, 4-dichlorophenoxyacetic acid ester; optionally, the water-soluble salt of 2, 4-dichlorophenoxyacetic acid is selected from one or more of triisopropanolamine salt of 2, 4-dichlorophenoxyacetic acid, isopropylamine salt of 2, 4-dichlorophenoxyacetic acid, methylamine salt of 2, 4-dichlorophenoxyacetic acid, dimethylamine salt of 2, 4-dichlorophenoxyacetic acid, ethanolamine salt of 2, 4-dichlorophenoxyacetic acid, triethanolamine salt of 2, 4-dichlorophenoxyacetic acid, potassium salt of 2, 4-dichlorophenoxyacetic acid and sodium salt of 2, 4-dichlorophenoxyacetic acid; the 2, 4-dichlorophenoxyacetic acid ester is selected from one or two of 2, 4-dichlorophenoxyacetic acid butyl ester and 2, 4-dichlorophenoxyacetic acid isooctyl ester.
Further comprises a filler auxiliary agent, wherein the weight ratio of the active ingredient to the filler auxiliary agent is 1:5-90.
Further, the filler aid is selected from one or more of an emulsifier, a wetting agent dispersant, an antifreezing agent, water, an organic solvent and a solid inert carrier.
Further, the emulsifier is selected from one or more of octyl phenol or nonylphenol dodecyl benzene sulfonate, fatty acid polyoxyethylene ether, sulfosuccinic acid ester, styrylphenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, polyoxyethylene octyl anisole, calcium dodecyl benzene sulfonate, triphenyl ethylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, ethoxylated isooctyl ether, fatty amine polyoxyethylene ether, polyoxyethylene polyoxypropylene copolymer and triphenyl ethylphenol polyoxyethylene ether phosphate.
Further, the wetting dispersant is selected from one or more of polyacrylate, phenolsulfonic acid or naphthalene sulfonate, sodium dodecyl sulfate, sodium diisobutylnaphthalene sulfonate, sodium dodecylbenzene sulfonate, fatty alcohol polyoxyethylene ether, di-sec-octyl maleate sulfonate, larch powder BX, sodium laurylsulfate, wetting penetrating agent F, wetting agent T, lignin sulfonate, polycarboxylate, alkyl naphthalene sulfonate, polycarboxylate and sodium methylenedinaphthyl sulfonate.
Further, the antifreezing agent is selected from one or more of ethylene glycol, polyethylene glycol 400, propylene glycol, 1, 2-propylene glycol, glycerol and sodium chloride.
Further, the solvent is one or more selected from cyclohexanone, xylene, ethanol, ethylene glycol monomethyl ether, isopropanol, methanol, acetone, solvent oil, N, N-dimethylformamide and isoamyl alcohol.
Further, the solid inert carrier is selected from one or more of sodium sulfate, sodium carbonate, sodium carboxymethyl starch, glucose, water-soluble corn starch and sodium gluconate.
Further, the dosage form of the weeding composition is a soluble solution, a soluble powder or a soluble granule;
Optionally, the dosage form of the weeding composition is a soluble agent, and optionally, the weeding composition comprises 1-70% of active ingredients, 4-13% of synergistic auxiliary agents, 2-10% of emulsifying agents, 0-10% of antifreezing agents and water which is added to 100%; optionally, the weeding composition comprises 18-34.2% of active ingredient, 4-13% of synergistic auxiliary agent, 2-10% of emulsifying agent, 0-10% of antifreezing agent and water which is added to 100%; optionally, the weeding composition comprises 20-30% of active ingredients, 5.5-9.5% of synergistic auxiliary agents, 4-7% of emulsifying agents, 2-6% of antifreezing agents and water which is complemented to 100%; optionally, the weeding composition comprises 20-30% of active ingredients, 5.5-9.5% of synergistic auxiliary agents, 7% of emulsifying agents and 4% of antifreezing agents, and the water is supplemented to 100%; optionally, the weeding composition comprises 20-30% of active ingredients, 6.4-8% of synergistic auxiliary agents, 7% of emulsifying agents and 4% of antifreezing agents, and the water is added to 100%; optionally, the emulsifier is selected from calcium dodecyl benzene sulfonate and polyoxyethylene polyoxypropylene copolymer, optionally the weight ratio of the calcium dialkyl benzene sulfonate and the polyoxyethylene polyoxypropylene copolymer is 4:3; optionally, the antifreeze is selected from ethylene glycol.
Further, the dosage form of the weeding composition is soluble granules, and optionally, the weeding composition comprises 1-70% of active ingredients, 4-13% of synergistic additives, 2-10% of wetting dispersing agents and 100% of solid inert carriers; optionally, the weeding composition comprises 20-30% of active ingredients, 4-13% of synergistic auxiliary agents, 4-8% of wetting dispersing agents and 100% of solid inert carriers; optionally, the weeding composition comprises 23% of active ingredient, 5% of synergistic assistant, 5% of wetting dispersant and 100% of solid inert carrier; optionally, the wetting dispersant is selected from lignosulfonates; alternatively, the solid inert carrier comprises sodium carboxymethyl starch and soluble corn starch; alternatively, sodium carboxymethyl starch comprises 3% by weight of the total composition.
Further, the dosage form of the weeding composition is soluble powder, and optionally, the weeding composition comprises 1-70% of active ingredient, 4-13% of synergistic additive, 2-10% of wetting dispersant and 100% of solid inert carrier; optionally, the weeding composition comprises 20-30% of active ingredients, 4-13% of synergistic auxiliary agents, 4-8% of wetting dispersing agents and 100% of solid inert carriers; optionally, the weeding composition comprises 28% of active ingredient, 10% of synergistic assistant, 6% of wetting dispersant and 100% of solid inert carrier; optionally, the wetting dispersant is selected from sodium lauryl sulfate; alternatively, the solid inert carrier is selected from sodium sulfate.
In another aspect, the application of the weeding composition in preventing and controlling farmland grass injury is provided; optionally, the plant pest comprises annual or perennial broadleaf weeds; optionally, the broadleaf weeds comprise one or more of chickweed and quinoa.
In a further aspect, a method for using the pesticide weeding composition is provided, wherein the application amount of the active ingredients of the weeding composition is 10-25 g/mu, and optionally, the application mode is spraying.
In yet another aspect, there is provided a use of humic acid, nitro humic acid, a water-soluble salt of humic acid and/or a water-soluble salt of nitro humic acid as an anti-pesticide degradation agent; alternatively, as herbicide-resistant pesticide degradation agents; alternatively, as an anti-pyridine carboxylic acid herbicide and an aryloxyphenoxypropionic acid herbicide.
Optionally, the humic acid water-soluble salt is one or more selected from humic acid sodium salt, humic acid potassium salt, humic acid phosphorus salt, humic acid silicon salt and humic acid ammonium salt.
Optionally, the water-soluble salt of nitro humic acid is selected from one or more of sodium salt of nitro humic acid, potassium salt of nitro humic acid and ammonium salt of nitro humic acid.
The herbicide can be diluted according to actual needs when in actual use, and can be sprayed after being diluted.
Advantageous effects
The herbicide composition disclosed by the invention improves the photolysis problem of aminopyralid and 2,4-D preparations and the problem that the water-soluble salts of aminopyralid and 2,4-D are not resistant to rain wash by adding the synergist-humic acid, reduces the volatility of aminopyralid and 2,4-D acid ester after application and the drifting problem of liquid medicine drops, promotes the absorption of weeds to aminopyralid and 2,4-D active ingredients, reduces the consumption of weeding active ingredients while improving the weeding effect, effectively prolongs the time for preventing and controlling weeds, reduces the application cost of farmers, and is beneficial to environmental improvement.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some embodiments, materials, elements, methods, means, etc. well known to those skilled in the art are not described in detail in order to highlight the gist of the present invention.
In the following examples, sodium hydroxide, potassium hydroxide, triisopropanolamine, isopropylamine, monoethanolamine, triethanolamine, dimethylamine, aqueous ammonia, are commercially available. Wherein,
Aminopyralid is available from Lier chemical Co.
The aminopyralid sodium salt is commercially available and can also be prepared as follows: weighing aminopyralid raw powder and sodium hydroxide according to a molar ratio of 1:1.1, firstly adding deionized water into a stirring kettle, adding water accounting for 10% of the mass of the aminopyralid raw powder, adding the weighed sodium hydroxide, stirring and dissolving, adding the weighed aminopyralid raw powder after dissolving is completed, mixing for 30min, heating and keeping at 70 ℃, and stirring and reacting for 120min under the temperature condition; finally, drying and dehydrating to obtain aminopyralid sodium salt.
The potassium aminopyralid salt is commercially available and can also be prepared as follows: the specific method is different from the preparation of aminopyralid sodium salt by replacing sodium hydroxide with potassium hydroxide.
The aminopyralid triisopropanolamine salt is commercially available and can also be prepared as follows: the specific method is different from the preparation of aminopyralid sodium salt by using triisopropanolamine to replace sodium hydroxide.
The aminopyralid amine salt is commercially available and can also be prepared as follows: the specific method is different from the preparation of aminopyralid sodium salt by replacing sodium hydroxide with ammonia water.
The isopropyl aminopyralid salt is commercially available and can also be prepared as follows: the specific method is different from the preparation of aminopyralid sodium salt by using isopropylamine instead of sodium hydroxide.
The triethanolamine salt of aminopyralid is commercially available or can be prepared as follows: the specific method is different from the preparation of aminopyralid sodium salt by using triethanolamine instead of sodium hydroxide.
The aminopyralid dimethylamine salt is commercially available and can also be prepared as follows: the specific method is different from the preparation of aminopyralid sodium salt by using dimethylamine instead of sodium hydroxide.
2, 4-Dichlorophenoxy acetic acid, sodium salt of 2, 4-Dichlorophenoxy acetic acid, isooctyl 2, 4-Dichlorophenoxy acetic acid were purchased from Andao Maihuo (Jiangsu) Limited.
The dimethylamine salt of 2, 4-dichlorophenoxyacetic acid was purchased from North Xin, red chemical Co.
Triisopropanolamine 2, 4-dichlorophenoxyacetate is commercially available and can be prepared as follows: weighing 2, 4-dichlorophenoxyacetic acid raw powder and triisopropanolamine according to the molar ratio of 1:1.15, firstly adding deionized water into a stirring kettle, adding 10% of the mass of the 2, 4-dichlorophenoxyacetic acid raw powder into the stirring kettle, stirring and mixing the weighed triisopropanolamine, adding the weighed 2, 4-dichlorophenoxyacetic acid raw powder after the mixing is completed, mixing for 30min, heating and keeping the temperature at 90 ℃, and stirring and reacting for 90min under the temperature condition; finally, drying and dehydrating to obtain the 2, 4-triclosan triisopropanolamine salt.
The isopropyl 2, 4-dichlorophenoxyacetate salt is commercially available and can be prepared as follows: the specific process differs from the above-described preparation of 2, 4-dichlorophenoxyacetic acid triisopropanolamine by replacing triisopropanolamine with isopropylamine.
The 2, 4-dichlorophenoxyacetic acid ethanolamine salt is commercially available and can be prepared as follows: the specific process differs from the above-described preparation of 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt by replacing triisopropanolamine with monoethanolamine.
Sodium, ammonium, phosphorus, potassium, and silicon salts of humic acid were purchased from Jiangxi lead humic acid technologies.
Nitrohumic acid and ammonium and potassium salts of nitrohumic acid were purchased from Jiangxi Kaiser humic acid Co.
Humic acid and sodium salt of nitro humic acid are purchased from Guizhou green land fertilizer company Limited.
The preparation methods of the dosage forms in the following examples are not particularly limited, and various methods known in the art can be adopted, and are not described herein.
Example 1 (weight ratio of pesticide active ingredient to synergistic adjuvant (humic acid ammonium salt) 25:7.5 (i.e. 1:0.3))
25% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: 1.6% by weight of aminopyralid triisopropanolamine salt, 23.4% by weight of 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt, 4% by weight of calcium dodecylbenzenesulfonate, 3% by weight of polyoxyethylene polyoxypropylene copolymer, 7.5% by weight of humic acid ammonium salt and 4% by weight of ethylene glycol, with water added to 100% by weight.
Wherein the weight ratio of the active ingredients of aminopyralid triisopropanolamine hydrochloride to 2, 4-dichlorophenoxyacetic acid triisopropanolamine hydrochloride is 1:14.6, the weight ratio of the aminopyralid triisopropanolamine salt to the 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt to the humic acid ammonium salt is 1:14.6:4.69.
Example 2 (weight ratio of pesticide active ingredient to synergistic adjuvant (sodium humate salt) is 30:8 (i.e. 1:0.27))
30% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: 2.3% of aminopyralid sodium salt, 27.7% of 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt, 4% of calcium dodecyl benzene sulfonate, 3% of polyoxyethylene polyoxypropylene copolymer, 8% of humic acid sodium salt and 4% of ethylene glycol, and water is added to 100% by weight.
Wherein the weight ratio of the active ingredients of aminopyralid sodium salt to 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt is 1:12, aminopyralid sodium salt, 2, 4-triclopyr triisopropanolamine salt and humic acid sodium salt with the weight ratio of 1:12:3.48.
Example 3 (weight ratio of pesticide active ingredient to synergistic adjuvant (Potassium humate salt) is 20:6.4 (i.e. 1:0.32))
20% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: 1% by weight of aminopyralid hydrochloride, 19% by weight of 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt, 4% by weight of calcium dodecyl benzene sulfonate, 3% by weight of polyoxyethylene polyoxypropylene copolymer, 6.4% by weight of humic acid potassium salt and 4% by weight of ethylene glycol, and water was added to 100% by weight.
Wherein the weight ratio of the active ingredients of aminopyralid hydrochloride to 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt is 1:19, aminopyralid hydrochloride, 2, 4-triclopyr triisopropanolamine salt and potassium humate in a weight ratio of 1:19:6.4.
Example 4 (weight ratio of pesticide active ingredient to synergistic adjuvant (Potassium humate salt) is 22:5.5 (i.e. 1:0.25))
22% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: aminopyralid isopropanolamine salt 0.92 wt%, 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt 21.08 wt%, sodium nonylphenol dodecylbenzenesulfonate 4 wt%, fatty acid polyoxyethylene ether 3 wt%, potassium humate 5.5 wt%, glycerol 4 wt%, and water added to 100 wt%.
Wherein the weight ratio of the active ingredients of aminopyralid isopropanolamine salt to 2, 4-triclosan acetic acid triisopropanolamine salt is 1:23, aminopyralid isopropanolamine salt, 2, 4-triclopyr triisopropanolamine salt and potassium humate salt with the weight ratio of 1:23:5.98.
Example 5 (weight ratio of pesticide active ingredient to synergistic adjuvant (sodium humate salt) is 28:9.5 (i.e. 1:0.34))
28% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: 4% by weight of aminopyralid triethanolamine salt, 24% by weight of 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt, 4% by weight of triphenylethyl phenol polyoxyethylene ether, 3% by weight of polyoxyethylene polyoxypropylene copolymer, 9.5% by weight of humic acid sodium salt and 4% by weight of propylene glycol, and water was added to 100% by weight.
Wherein the weight ratio of the active ingredients of aminopyralid triethanolamine salt to 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt is 1:6, triethanolamine chloroaminopyrate, triisopropanolamine 2, 4-dichlorophenoxyacetate, 1:6:2.38.
Example 6 (weight ratio of pesticide active ingredient to synergistic adjuvant (humic acid) 24:8.4 (i.e. 1:0.35))
24% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: 3.7% by weight of aminopyralid triisopropanolamine salt, 20.3% by weight of 2, 4-dichlorophenoxyacetic acid isopropylamine salt, 4% by weight of calcium dodecylbenzenesulfonate, 3% by weight of polyoxyethylene polyoxypropylene copolymer, 8.4% by weight of humic acid, 4% by weight of propylene glycol and water was added to 100% by weight.
Wherein the weight ratio of the active ingredients of aminopyralid triisopropanolamine hydrochloride to 2, 4-dichlorophenoxyacetic acid isopropyl amine salt is 1:5.5, the weight ratio of the aminopyralid triisopropanolamine hydrochloride to the 2, 4-dichlorophenoxyacetic acid isopropylamine salt to the humic acid is 1:5.5: :2.27.
Example 7 (weight ratio of pesticide active ingredient to synergistic adjuvant (humic acid phosphate salt) is 23:5.3 (i.e. 1:0.23))
23% Aminopyralid 2,4-D soluble granules
The soluble granule comprises the following components in parts by weight: aminopyralid dimethylamine salt 0.85 wt%, 2, 4-dichlorophenoxyacetic acid dimethylamine salt 22.15 wt%, lignosulfonate 5 wt%, carboxymethyl starch sodium 3 wt%, humic acid phosphate 5.3 wt%, and water-soluble corn starch added to 100 wt%.
Wherein the weight ratio of the active ingredients of aminopyralid dimethylamine salt to 2, 4-dichlorophenoxyacetic acid dimethylamine salt is 1: the weight ratio of the aminopyralid dimethylamine salt to the 2, 4-dichlorophenoxyacetic acid dimethylamine salt to the humic acid phosphate salt is 1:26:6.24.
Example 8 (weight ratio of pesticide active ingredient to synergistic adjuvant (humic acid silicon salt) is 28:10.64 (i.e. 1:0.38))
28% Aminopyralid 2,4-D soluble powder
The soluble powder comprises the following components in parts by weight: 7% by weight of aminopyralid amine salt, 21% by weight of 2, 4-dichlorophenoxyacetic acid sodium salt, 6% by weight of sodium lauryl sulfate, 10.64% by weight of humic acid silicon salt and 100% by weight of sodium sulfate.
Wherein the weight ratio of the active ingredients of aminopyralid hydrochloride and 2, 4-dichlorophenoxyacetic acid sodium salt is 1:3, aminopyralid amine salt, 2, 4-dichlorophenoxyacetic acid sodium salt and humic acid silicon salt with the weight ratio of 1:3:1.52.
Example 9 (weight ratio of pesticide active ingredient to synergistic adjuvant (sodium humate salt) is 20:4 (i.e. 1:0.2))
20% Aminopyralid 2,4-D soluble solution
The soluble agent comprises the following components in parts by weight: 10% by weight of aminopyralid triisopropanolamine salt, 10% by weight of 2, 4-dichlorophenoxyacetic acid ethanolamine salt, 4% by weight of castor oil polyoxyethylene ether, 3% by weight of polyoxyethylene octyl anisole, 4% by weight of humic acid sodium salt, 400% by weight of polyethylene glycol and 100% by weight of water.
Wherein the weight ratio of the active ingredients of aminopyralid triisopropanolamine hydrochloride to 2, 4-dichlorophenoxyacetic acid ethanolamine salt is 1:1, the weight ratio of the aminopyralid triisopropanolamine salt to the 2, 4-dichlorophenoxyacetic acid ethanolamine salt to the humic acid sodium salt is 1:1:0.4.
Example 10 (weight ratio of pesticide active ingredient to synergistic adjuvant (humic acid) is 32.5:13 (i.e. 1:0.4))
32.5% Aminopyralid 2,4-D soluble agent comprising the following components in parts by weight: potassium aminopyralid 0.64 wt%, isooctyl 2, 4-dichlorophenoxyacetate 31.86 wt%, castor oil polyoxyethylene ether 4 wt%, polyoxyethylene octyl anisole 3 wt%, humic acid 13 wt%, ethylene glycol 4 wt% and water to 100 wt%. Wherein,
Wherein the weight ratio of the active ingredients of the aminopyralid potassium salt to the 2, 4-dichlorophenoxyacetic acid isooctyl ester is 1:50, the weight ratio of the aminopyralid potassium salt to the 2, 4-dichlorophenoxyacetic acid isooctyl ester to the humic acid is 1:50:20.31.
Comparative example 1 25% aminopyralid 2,4-D soluble solution
The difference from example 1 is that no synergistic auxiliary ingredient, ammonium humate, was added.
Comparative example 2 25% aminopyralid 2,4-D soluble solution
The difference from example 1 is that the ammonium humate salt is added in an amount of 2.5 wt%.
Wherein the weight ratio of the active ingredients to the humic acid ammonium salt is 1:0.1.
The weight ratio of the active ingredients of aminopyralid triisopropanolamine hydrochloride to 2, 4-dichlorophenoxyacetic acid triisopropanolamine hydrochloride is 1:14.6, the weight ratio of the aminopyralid triisopropanolamine salt to the 2, 4-dichlorophenoxyacetic acid triisopropanolamine salt to the humic acid ammonium salt is 1:14.6:1.56.
Comparative example 3 25% aminopyralid 2,4-D soluble solution
The difference from example 1 is that the ammonium humate salt is added in an amount of 13.75% by weight. When the sample is prepared by the comparative example, the system is sticky after the humic acid ammonium salt is added, floccules exist, and the sample cannot be successfully prepared.
Wherein the weight ratio of the active ingredient to the humic acid ammonium salt is 1:0.55.
The weight ratio of the active ingredients of the aminopyralid triisopropanolamine hydrochloride to the 2, 4-dichlorophenoxyacetic acid triisopropanolamine hydrochloride is 1:14.6, and the weight ratio of the aminopyralid triisopropanolamine hydrochloride to the 2, 4-dichlorophenoxyacetic acid triisopropanolamine hydrochloride to the humic acid ammonium salt is 1:14.6:8.59.
Comparative example 4 30% aminopyralid 2,4-D soluble solution
The difference from example 2 is that ammonium sulphate is used instead of sodium humate.
Comparative example 5 20% aminopyralid 2,4-D soluble solution
The difference from example 3 is that 2- (2-hydroxy-5-benzyl) benzotriazole is used instead of potassium humate.
Comparative example 6 22% aminopyralid 2,4-D soluble solution
The difference from example 4 is that urea is used instead of potassium humate.
Comparative example 7 23% aminopyralid 2,4-D soluble granules
The difference from example 7 is that zinc oxide is used instead of the phosphorus humate.
Test example 1:
the decomposition of aminopyralid and 2,4-D by UV light was experimentally determined. The herbicidal composition formulations of test examples 1 to 10 and comparative examples 1 to 2 and comparative examples 4 to 7 were respectively selected and tested for the content of aminopyralid and 2,4-D, which are active ingredients of the compositions before and after ultraviolet irradiation, under the irradiation of 254nm ultraviolet light within 32 hours under the same weight, and the photodegradation rate was calculated.
The content of the pesticide effective components is determined by HPLC method (chromatographic column: waters)C18 3.9X105 mm; detection wavelength: 254nm; flow rate: 1.0 ml.min-1; mobile phase: methanol: water=85: 15).
TABLE 1 test results after 254nm UV irradiation for 32h
As can be seen from the photodegradation results in Table 1, the photodegradation rate of the active ingredients in the formulations of examples 1 to 10 is significantly lower than that of comparative examples 1 to 2 and comparative examples 4 to 7, particularly aminopyralid is 5% or less, the photodegradation resistance is more remarkable, and the photodegradation rate of 2,4-D is 3% or less.
Test example 2:
the weeding composition is used for measuring the field control effect of the broad leaf weeds in the spring wheat fields.
The test area is a farm of Xiangyang, the land is rainy in the south of the year, and broadleaf weeds have high resistance and harm to severe areas.
The herbicidal compositions of examples 1 to 10 and comparative examples 1 to 2 and comparative examples 4 to 7 were tested for their effect on the control of broadleaf weeds in spring wheat fields at Tian Nafen, and the specific steps include: before spring wheat jointing stage, various medicines are accurately weighed according to the area of a test district, diluted with water until the spraying amount is 30L/mu, and uniformly sprayed by a knapsack sprayer, wherein the spray head is a fan-shaped spray head special for herbicide. When spraying, the liquid medicine is uniformly sprayed into the test cell, so that the phenomena of missing spraying and multiple spraying are avoided, and water is used for replacing the herbicide composition to serve as blank treatment. Except for the application of herbicide according to the scheme, the conditions of all other test cells are identical (the application amount of the effective components of the composition is the application amount of each mu of land), the death condition of weeds is observed on the 15 th day, the 30 th day and the 50 th day after the test, and the weeding activities of various agents are compared.
On days 15, 30 and 50 after the application, broadleaf weeds (chickweed and quinoa) in the test treatment area were identified and counted, and the plant control effect was calculated according to formula (A), and the results are shown in Table 2 below.
Table 2 results of field efficacy tests
As can be seen from the results of the treatment of the drug effect in table 2, the herbicidal composition formulations of examples 1 to 10 have better control effects on both chickweed and quinoa weeds than comparative examples 1 to 2 and comparative examples 4 to 7, and particularly after 50 days of application, the control effects are more remarkable, and the synergistic herbicidal composition of the invention has the characteristic of long lasting period on both chickweed and quinoa broadleaf weeds; and the application amount is reduced by 25% compared with that of the comparative example, the control effect is better, the excellent effect of enhancing and reducing the application is shown, the application times and the application amount are fewer, the cost is saved, and the pollution to the environment is reduced.
In addition, according to the results of the pharmacodynamic treatment in table 2, the inventors have unexpectedly found that the synergistic herbicidal composition has better effect on broadleaf weeds than other 2,4-D water soluble salts and acid esters when aminopyralid is compounded with 2,4-D, preferably 2,4-D triisopropanolamine salts, and has more excellent effect when aminopyralid is compounded with 2,4-D triisopropanolamine salts.
In conclusion, the synergistic weeding composition disclosed by the invention has excellent control effect on broadleaf weeds in spring wheat planting fields, the control effect is improved, the dosage is reduced, and most importantly, the synergistic weeding composition can prolong the control time on the broadleaf weeds after being applied, has excellent weeding effect in 50 days, and has wide application prospect and market popularization value.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (47)

1. A herbicidal composition comprising an active ingredient and a synergistic adjuvant, wherein,
The active ingredients comprise pyridine carboxylic acid herbicide and aryloxy-phenoxy propionic acid herbicide; the pyridine carboxylic acid herbicide is aminopyralid and/or aminopyralid water-soluble salt; the aryloxy-phenoxy-propionic acid herbicide is one or more selected from 2, 4-dichlorophenoxyacetic acid, 2, 4-dichlorophenoxypropionic acid, 2, 4-dichlorophenoxyacetic acid water-soluble salt and 2, 4-dichlorophenoxyacetic ester;
the synergistic agent comprises one or more of humic acid and humic acid water-soluble salt; the humic acid water-soluble salt is one or more selected from humic acid sodium salt, humic acid potassium salt, humic acid phosphorus salt, humic acid silicon salt and humic acid ammonium salt;
the weight ratio of the active ingredients to the synergistic agent is 1:0.2-0.4;
The weight ratio of the pyridine carboxylic acid herbicide to the aryloxy-phenoxy propionic acid herbicide is 1: 3-23;
the synergistic assistant accounts for 4-13% of the total weight of the weeding composition.
2. The herbicidal composition of claim 1 wherein the co-agent comprises from 5.5 to 9.5% by weight of the total herbicidal composition;
and/or the weight ratio of the active ingredient to the synergistic agent is 1:0.25-0.34.
3. The herbicidal composition of claim 1 wherein the co-agent comprises from 6.4 to 8% by weight of the total herbicidal composition;
and/or the weight ratio of the active ingredient to the synergistic agent is 1:0.27-0.32.
4. The herbicidal composition of claim 1 wherein the active ingredient comprises from 1 to 70% by weight of the total herbicidal composition.
5. The herbicidal composition of claim 1 wherein the active ingredient comprises from 20 to 32.5% by weight of the total herbicidal composition.
6. The herbicidal composition of claim 1 wherein the active ingredient comprises 20 to 30% by weight of the total herbicidal composition.
7. The herbicidal composition of claim 1 wherein the weight ratio of picolinic acid-based herbicide to aryloxyphenoxypropionic acid-based herbicide in the active ingredient is 1: 6-23.
8. The herbicidal composition of claim 1 wherein the weight ratio of picolinic acid-based herbicide to aryloxyphenoxypropionic acid-based herbicide in the active ingredient is 1: 12-19.
9. The herbicidal composition of claim 1 wherein the weight ratio of picolinic acid-based herbicide to aryloxyphenoxypropionic acid-based herbicide in the active ingredient is 1: 14-15.
10. The herbicidal composition of claim 1 wherein the pyridine carboxylic acid herbicide, the aryloxyphenoxypropionic acid herbicide and the synergistic adjuvant are present in a weight ratio of 1: 3-23: 1.5-6.5.
11. The herbicidal composition of claim 1 wherein the pyridine carboxylic acid herbicide, the aryloxyphenoxypropionic acid herbicide and the synergistic adjuvant are present in a weight ratio of 1: 6-23: 2.3-6.5.
12. The herbicidal composition of claim 1 wherein the pyridine carboxylic acid herbicide, the aryloxyphenoxypropionic acid herbicide and the synergistic adjuvant are present in a weight ratio of 1: 12-19: 3.4-6.4.
13. The herbicidal composition of claim 1 wherein the pyridine carboxylic acid herbicide, the aryloxyphenoxypropionic acid herbicide and the synergistic adjuvant are present in a weight ratio of 1: 14-15: 4-5.
14. A herbicidal composition according to any of claims 1 to 13, wherein the water-soluble salt of aminopyralid is selected from one or more of the group consisting of sodium salt of aminopyralid, potassium salt of aminopyralid, methylamine salt of aminopyralid, triisopropanolamine salt of aminopyralid, triethanolamine salt of aminopyralid, isopropylamine salt of aminopyralid, dimethylamine salt of aminopyralid, ethanolamine salt of aminopyralid, isopropanolamine salt of aminopyralid.
15. The herbicidal composition according to any one of claims 1 to 13, wherein the water-soluble salt of 2, 4-dichlorophenoxyacetic acid is selected from one or more of triisopropanolamine salt of 2, 4-dichlorophenoxyacetic acid, isopropylamine salt of 2, 4-dichlorophenoxyacetic acid, methylamine salt of 2, 4-dichlorophenoxyacetic acid, dimethylamine salt of 2, 4-dichlorophenoxyacetic acid, ethanolamine salt of 2, 4-dichlorophenoxyacetic acid, triethanolamine salt of 2, 4-dichlorophenoxyacetic acid, potassium salt of 2, 4-dichlorophenoxyacetic acid sodium salt; the 2, 4-dichlorophenoxyacetic acid ester is selected from one or two of 2, 4-dichlorophenoxyacetic acid butyl ester and 2, 4-dichlorophenoxyacetic acid isooctyl ester.
16. The herbicidal composition of claim 1 further comprising a filler adjuvant, wherein the weight ratio of active ingredient to filler adjuvant is from 1:5 to 90.
17. The herbicidal composition of claim 16 wherein the filler adjuvant is selected from one or more of emulsifiers, wetting dispersants, antifreeze agents, water, organic solvents and solid inert carriers.
18. The herbicidal composition of claim 17, wherein the emulsifier is selected from one or more of octylphenol or nonylphenol sodium dodecylbenzenesulfonate, fatty acid polyoxyethylene ether, sulfosuccinate, styrylphenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, polyoxyethylene octylanisole, calcium dodecylbenzenesulfonate, triphenylethylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, ethoxylated isooctyl ether, fatty amine polyoxyethylene ether, polyoxyethylene polyoxypropylene copolymer, and triphenylethylphenol polyoxyethylene ether phosphate.
19. The herbicidal composition of claim 17 wherein the wetting dispersant is selected from one or more of the group consisting of polyacrylates, phenolsulfonic or naphthalene sulfonates, sodium dodecyl sulfate, sodium diisobutylnaphthalene sulfonate, sodium dodecylbenzene sulfonate, fatty alcohol polyoxyethylene ether, di-sec-octyl maleate sulfonate, larch powder BX, sodium lauryl sulfate, wetting penetrant F, wetting agent T, lignin sulfonate, polycarboxylates, alkyl naphthalene sulfonates, polycarboxylates, sodium methylenedinaphthyl sulfonate.
20. The herbicidal composition of claim 17 wherein the antifreeze is selected from one or more of ethylene glycol, polyethylene glycol 400, propylene glycol, 1, 2-propylene glycol, glycerol, sodium chloride.
21. The herbicidal composition of claim 17 wherein the organic solvent is selected from one or more of cyclohexanone, xylene, ethanol, ethylene glycol monomethyl ether, isopropanol, methanol, acetone, mineral spirits, N-dimethylformamide, isoamyl alcohol.
22. The herbicidal composition of claim 17 wherein the solid inert carrier is selected from one or more of sodium sulfate, sodium carbonate, sodium carboxymethyl starch, glucose, water-soluble corn starch, sodium gluconate.
23. The herbicidal composition of claim 17 wherein the herbicidal composition is in the form of a solution, a soluble powder or a soluble granule.
24. The herbicidal composition of any one of claims 16 to 23 wherein the formulation of the herbicidal composition is a soluble agent, the herbicidal composition comprising 1 to 70% active ingredient, 4 to 13% co-agent, 2 to 10% emulsifier, 0 to 10% antifreeze, water up to 100%.
25. The herbicidal composition of claim 24, wherein the herbicidal composition comprises 18 to 34.2% of an active ingredient, 4 to 13% of a co-agent, 2 to 10% of an emulsifier, 0 to 10% of an antifreeze, and water up to 100%.
26. The herbicidal composition of claim 24, wherein the herbicidal composition comprises 20 to 30% of an active ingredient, 5.5 to 9.5% of a co-agent, 4 to 7% of an emulsifier, 2 to 6% of an antifreeze, and water up to 100%.
27. The herbicidal composition of claim 24, wherein the herbicidal composition comprises 20 to 30% active ingredient, 5.5 to 9.5% co-agent, 7% emulsifier, 4% antifreeze, and water up to 100%.
28. The herbicidal composition of claim 24, wherein the herbicidal composition comprises 20 to 30% active ingredient, 6.4 to 8% co-agent, 7% emulsifier, 4% antifreeze, and water up to 100%.
29. The herbicidal composition of claim 24 wherein the emulsifier is selected from the group consisting of calcium dodecylbenzenesulfonate and polyoxyethylene polyoxypropylene copolymers.
30. The herbicidal composition of claim 29 wherein the weight ratio of calcium dodecylbenzenesulfonate to polyoxyethylene polyoxypropylene copolymer is 4:3.
31. The herbicidal composition of claim 24 wherein the antifreeze is selected from the group consisting of ethylene glycol.
32. The herbicidal composition of any one of claims 16 to 23 wherein the formulation of the herbicidal composition is a soluble granule, the herbicidal composition comprising 1 to 70% active ingredient, 4 to 13% co-agent, 2 to 10% wetting dispersant, and a solid inert carrier up to 100%.
33. The herbicidal composition of claim 32, wherein the herbicidal composition comprises 20 to 30% active ingredient, 4 to 13% co-agent, 4 to 8% wetting dispersant, and up to 100% solid inert carrier.
34. The herbicidal composition of claim 32 wherein the herbicidal composition comprises an active ingredient of 23%, a co-agent of 5%, a wetting dispersant of 5%, and a solid inert carrier of up to 100%.
35. The herbicidal composition of claim 32 wherein the wetting dispersant is selected from the group consisting of lignosulfonates.
36. The herbicidal composition of claim 32 wherein the solid inert carrier comprises sodium carboxymethyl starch and soluble corn starch.
37. The herbicidal composition of claim 36 wherein the sodium carboxymethyl starch comprises 3% of the total weight of the composition.
38. The herbicidal composition of any one of claims 16 to 23 wherein the formulation of the herbicidal composition is a soluble powder, the herbicidal composition comprising 1 to 70% active ingredient, 4 to 13% co-agent, 2 to 10% wetting dispersant, and a solid inert carrier up to 100%.
39. The herbicidal composition of claim 38, wherein the herbicidal composition comprises 20 to 30% active ingredient, 4 to 13% co-agent, 4 to 8% wetting dispersant, and up to 100% solid inert carrier.
40. The herbicidal composition of claim 38 wherein the herbicidal composition comprises 28% active ingredient, 10% co-agent, 6% wetting dispersant, and a solid inert carrier make up to 100%.
41. The herbicidal composition of claim 38 wherein the wetting dispersant is selected from sodium lauryl sulfate.
42. A herbicidal composition according to claim 38, wherein the solid inert carrier is selected from sodium sulphate.
43. Use of a herbicidal composition according to any of claims 1 to 42 for controlling crop plants.
44. The use of claim 43 wherein the agricultural pest comprises annual or perennial broadleaf weeds.
45. The use according to claim 44, wherein the broadleaf weeds comprise one or more of chickweed, quinoa.
46. A method of using the herbicidal composition of any one of claims 1 to 42, wherein the amount of the active ingredient applied to the herbicidal composition is 10 to 25 g/mu.
47. The method of claim 46, wherein the application is spraying.
CN202211178692.XA 2022-09-27 2022-09-27 Weeding composition and application thereof Active CN115581235B (en)

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