CN117481113A - Topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof - Google Patents

Topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof Download PDF

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Publication number
CN117481113A
CN117481113A CN202311771594.1A CN202311771594A CN117481113A CN 117481113 A CN117481113 A CN 117481113A CN 202311771594 A CN202311771594 A CN 202311771594A CN 117481113 A CN117481113 A CN 117481113A
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agent
clodinafop
topramezone
propargyl
dispersible oil
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CN202311771594.1A
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CN117481113B (en
Inventor
张彩
王泽坤
郭家志
王子谦
刘春明
张艳红
谢印贤
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Shandong Kesaiji Agricultural Bioengineering Co ltd
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Shandong Kesaiji Agricultural Bioengineering 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
    • 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
    • A01N25/02—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 liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • 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
    • A01N25/30—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 characterised by the surfactants
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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

Abstract

The invention belongs to the field of pesticide preparations, and in particular relates to a topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof, wherein the dispersible oil suspending agent comprises the following components by weight percent, 1-3% of topramezone, 3-5% of clodinafop-propargyl, 15-25% of emulsifying agent, 1-7% of dispersing agent, 0.5-3% of thickening agent, 1-5% of stabilizing agent and 100% of dispersing medium; the dispersible oil suspending agent prepared by the invention has excellent preparation performance, better suspension performance and heat storage stability, and has excellent control effect on weeds in wheat fields.

Description

Topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof
Technical Field
The invention belongs to the field of pesticide preparations, and particularly relates to a topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof.
Background
The new pesticide has long development period and high cost, can obviously reduce pesticide loss, improve the control effect and the pesticide utilization rate based on the development and optimization of pesticide dosage forms of the existing varieties, and is one of important development directions of pesticide 'reduced application and synergy' in China. Among the existing pesticide formulations, the dispersible oil suspending agent has the outstanding advantages of environmental friendliness, good wetting spreadability, strong anti-scouring capability, obvious synergistic effect and the like, and has become one of the pesticide formulations with the most development potential in the future. The definition of dispersible oil suspending agent is: a stable suspension liquid preparation in which the active ingredient is dispersed as solid particles in a nonaqueous medium. The method has the following two characteristics: firstly, the dispersing medium such as vegetable oil, mineral oil and the like is used, so that the method has the characteristics of safety and environmental protection; secondly, the pesticide composition has the properties of protecting active ingredients, reducing the drift of fog drops, improving the adhesiveness, permeability, wetting spreadability and the like of the fog drops on the surfaces of crops, and finally, the control effect of the pesticide composition is improved to a certain extent, thereby being beneficial to improving the pesticide utilization rate.
Topramezone belongs to a novel trione post-emergence stem leaf treatment agent, is absorbed by roots, seedlings and leaves, is transmitted to meristems from the top and the base in plants, inhibits biosynthesis of carotenoid and chlorophyll and has disturbed functions, so that germinated sensitive weed plants die, and is used for preventing annual weeds.
Clodinafop-propargyl belongs to an aryloxy-phenoxy propionic acid herbicide, can effectively inhibit biosynthesis of the clodinafop-propargyl into an acetyl-assistant-A hydroxylase inhibitor, and can be quickly degraded into free acid phenyl and pyridine parts in soil to enter the soil and mineralize. Is mainly used for preventing and killing annual gramineous weeds such as wild oat, alopecuroide, oat, ryegrass, common bluegrass, green bristlegrass and the like.
The prior art has a relevant report on the synergism of the topramezone and the clodinafop-propargyl, but no study on the preparation of the compound composition is carried out in pesticide registration and related documents. For example, CN107087619a discloses a herbicidal composition comprising a combination of topramezone and clodinafop-propargyl in a weight ratio of 1:20 to 20:1 as active ingredients. The weeding composition is prepared into emulsifiable concentrates, aqueous emulsion, aqueous suspension, water dispersible granules, wettable powder, dispersible oil suspension or microemulsion, wherein the dosage of the active ingredient is 5-50% by weight; only the synergistic effect of the herbicidal composition is studied in this patent and the formulation type is generally mentioned. CN107087619B discloses a herbicidal composition, wherein the active ingredients contained in the herbicidal composition are a composition of topramezone and clodinafop-propargyl in a weight ratio of 3:1; the topramezone, the clodinafop-propargyl weeding composition and the third component form a ternary weeding composition, wherein the third component is flurbiproflumilast, and the weight ratio of the topramezone to the clodinafop-propargyl weeding composition to the third component is 1-4:1-4:1-2. The synergistic effect of the ternary herbicidal composition was studied in this patent document, and aqueous suspensions were developed. At present, the dispersible oil suspending agent compounded by topramezone and clodinafop-propargyl is not described in the literature.
Disclosure of Invention
The invention aims to provide a topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof. The specific scheme is as follows:
the dispersible oil suspending agent is characterized by comprising 1-3% of topramezone, 3-5% of clodinafop-propargyl, 15-25% of emulsifying agent, 1-7% of dispersing agent, 0.5-3% of thickening agent, 1-5% of stabilizing agent and 100% of dispersion medium;
preferably, the emulsifier is a combination of ethyl lan NS-500LQ, YUS-D935 and agricultural emulsion 500#, wherein the weight content of ethyl lan NS-500LQ is 6-10%, the weight content of YUS-D935 is 3-7%, and the weight content of agricultural emulsion 500# is 3-7%;
preferably, the dispersing agent is a combination of SP-2836 and Agrlian-700, wherein the weight content of the SP-2836 is 1-4%, and the weight content of the Agrlian-700 is 1-4%;
preferably, the thickener is a combination of organic bentonite and white carbon black;
preferably, the stabilizer is a combination of potassium dihydrogen phosphate and urea, wherein the weight content of the potassium dihydrogen phosphate is 1-2% and the weight content of the urea is 1-2%;
preferably, the dispersion medium is solvent oil No. 200 and methyl oleate, wherein the weight content of the solvent oil No. 200 is 1-10%, and the methyl oleate is 100%.
Preferably, the dispersible oil suspending agent comprises the following components, by weight, 2% of topramezone, 4% of clodinafop-propargyl, 15-20% of an emulsifying agent, 1-5% of a dispersing agent, 1-3% of a thickening agent, 2-4% of a stabilizing agent and 100% of a dispersing medium.
Particularly preferred dispersible oil suspending agents comprise, by weight, 2% topramezone, 4% clodinafop-propargyl, ethyl NS-500lq 8%, YUS-D935 5%, agro-emulsion 500# 5%, SP-2836 2%, agrlian-700 2%, organobentonite 0.5%, white carbon black 1%, potassium dihydrogen phosphate 1.5%, urea 1.5%, solvent oil 200 # 5%, methyl oleate make up 100%.
The dispersible oil suspending agent is used for preventing and controlling weeds in wheat fields. The weeds are grassy weeds and broadleaf weeds.
By adopting the technical scheme, the invention has the following beneficial effects:
the dispersible oil suspending agent prepared by the invention has excellent preparation performance, good suspension performance and heat storage stability. The dispersible oil suspending agent prepared by the invention has excellent control effect on weeds in wheat fields.
Detailed Description
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.
The invention is further illustrated with reference to specific embodiments.
Example 1: preparation and performance test of 6% topramezone and clodinafop-propargyl dispersible oil suspending agent
The raw material sources are as follows: are all commercially available and are configured according to the weight percentage shown in the formula of the table 1
Table 1: formula of 6% topramezone and clodinafop-propargyl dispersible oil suspending agent
The preparation method comprises the following steps:
according to the formula, a dispersing medium, an emulsifying agent, a dispersing agent and a stabilizing agent are added, shearing is carried out for 3-5min by using a multifunctional dispersing sand mill, then a thickening agent, topramezone and terbuthylazine are added, after continuing shearing for 5-10min, the mixture is transferred into a vertical sand mill for sand milling for 2-2.5h, the grain diameter is controlled to be less than or equal to 5 mu m, zirconium beads are filtered after sand milling is finished, and detection analysis of various technical indexes is carried out.
The preparation quality index testing method comprises the following steps:
content of active ingredients: measured by HPLC;
suspension ratio: according to GB/T14825-2006;
pH value: according to GB/T1601-1993;
wet sieve test: according to GB/T16150-1995;
dispersion stability: reference GB 28155-2011;
pourability: according to GB/T31737-2015;
persistent foamability: according to GB/T28137-2011;
thermal storage stability: according to GB/T19136-2003;
low temperature stability: according to GB/T19137-2003.
Quality control index test results:
as shown in Table 2, the dispersible oil suspending agent prepared by OD1-OD6 can reach the corresponding quality control index, wherein the suspension rate of more than 99% of the active ingredients in the OD3 preparation formula can be realized, and the preparation performance is excellent. As can be seen from the comparison of OD3 with OD1-OD 2 and OD 4-OD 6, the selection of the emulsifying agent and the dispersing agent has a larger influence on the suspension rate of the preparation, and when the emulsifying agent is selected from the combination of Ethylan NS-500LQ, YUS-D935 and agro-emulsion 500#; the dispersant is selected from SP-2836 and Agrlian-700 in combination, so that the suspension performance of the preparation can be remarkably improved.
The heat storage stability of the OD7 and OD8 preparations is unqualified, and compared with the OD3 formula, the combination of the stabilizer potassium dihydrogen phosphate and urea is added in the dispersible oil suspending agent, so that the heat storage stability of the preparations can be improved, and the phenomenon of creaming and bottoming after the temperature is changed can be avoided.
Table 2: quality control index test
Example 2:6% topramezone and clodinafop-propargyl dispersible oil suspending agent has field control effect on annual weeds in wheat fields
Testing the medicament: OD1-OD6 in example 1;
the testing method comprises the following steps: the test was run with a total of 6 treatment test areas and 1 blank, cells were randomly arranged and repeated 3 times. The cell area is 45m 2 . During the 1 heart period of 3 leaves of wheat, the common stem and leaf spray treatment of a knapsack sprayer is selected, and the spray amount is 450L/hm 2 The method comprises the steps of carrying out a first treatment on the surface of the Fresh weight of weeds (wild oat, myrtle, green bristlegrass and barnyard grass) investigated for 21d after medicine, 4 points are taken in each district, and the area of each point is 0.25m 2 And calculating the fresh weight control effect on weeds.
The calculation formula is as follows: fresh weight control (%) = [ (fresh weight of weeds in control area-fresh weight of weeds in treatment area)/fresh weight of weeds in control area ] ×100.
Test results:
as shown in Table 3, the OD1-OD6 has excellent control effect on annual weeds in wheat fields, the field control effect is more than 90%, and the field control effect of the OD3 is 99.5%.
Table 3: the dispersible oil suspending agent has field control effect on annual weeds in wheat fields
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same.

Claims (5)

1. The dispersible oil suspending agent is characterized by comprising 1-3% of topramezone, 3-5% of clodinafop-propargyl, 15-25% of emulsifying agent, 1-7% of dispersing agent, 0.5-3% of thickening agent, 1-5% of stabilizing agent and 100% of dispersion medium;
the emulsifier is a combination of ethyl lan NS-500LQ, YUS-D935 and agricultural emulsion 500#, wherein the weight content of ethyl lan NS-500LQ is 6-10%, the weight content of YUS-D935 is 3-7%, and the weight content of agricultural emulsion 500#;
the dispersing agent is a combination of SP-2836 and Agrlian-700, wherein the weight content of the SP-2836 is 1-4%, and the weight content of the Agrlian-700 is 1-4%;
the thickener is a combination of organic bentonite and white carbon black;
the stabilizer is a combination of potassium dihydrogen phosphate and urea, wherein the weight content of the potassium dihydrogen phosphate is 1-2% and the weight content of the urea is 1-2%;
the dispersion medium is solvent oil No. 200 and methyl oleate, wherein the weight content of the solvent oil No. 200 is 1-10%, and the methyl oleate is 100%.
2. The dispersible oil suspension of claim 1, comprising the following components, by weight, 2% of topramezone, 4% of clodinafop-propargyl, 15-20% of an emulsifying agent, 1-5% of a dispersing agent, 1-3% of a thickening agent, 2-4% of a stabilizing agent, 1-10% of solvent oil 200, and 100% of methyl oleate.
3. The dispersible oil suspension of claim 2, comprising the following ingredients, by weight, 2% topramezone, 4% clodinafop-propargyl, ethyl lan NS-500lq 8%, YUS-D935 5%, agro-emulsion 500# 5%, SP-2836% 2%, agrlian-700 2%, organobentonite 0.5%, white carbon black 1%, potassium dihydrogen phosphate 1.5%, urea 1.5%, solvent oil No. 200, methyl oleate make up 100%.
4. Use of the dispersible oil suspension agent according to any one of claims 1 to 3 for the control of weeds in wheat fields.
5. The use according to claim 4, wherein the weeds are grasses and broadleaf weeds.
CN202311771594.1A 2023-12-21 2023-12-21 Topramezone and clodinafop-propargyl dispersible oil suspending agent and application thereof Active CN117481113B (en)

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