CN115152780A - Medicament for preventing and treating spike blight of plantain and preparation method thereof - Google Patents
Medicament for preventing and treating spike blight of plantain and preparation method thereof Download PDFInfo
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- CN115152780A CN115152780A CN202210744240.7A CN202210744240A CN115152780A CN 115152780 A CN115152780 A CN 115152780A CN 202210744240 A CN202210744240 A CN 202210744240A CN 115152780 A CN115152780 A CN 115152780A
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- 235000015266 Plantago major Nutrition 0.000 title claims abstract description 37
- 239000003814 drug Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 240000008790 Musa x paradisiaca Species 0.000 title claims 2
- 241001127637 Plantago Species 0.000 claims description 42
- 201000010099 disease Diseases 0.000 claims description 24
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000011159 matrix material Substances 0.000 claims description 21
- MNHVNIJQQRJYDH-UHFFFAOYSA-N 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1,2-dihydro-1,2,4-triazole-3-thione Chemical compound N1=CNC(=S)N1CC(C1(Cl)CC1)(O)CC1=CC=CC=C1Cl MNHVNIJQQRJYDH-UHFFFAOYSA-N 0.000 claims description 17
- 239000005825 Prothioconazole Substances 0.000 claims description 17
- 239000005869 Pyraclostrobin Substances 0.000 claims description 17
- HZRSNVGNWUDEFX-UHFFFAOYSA-N pyraclostrobin Chemical compound COC(=O)N(OC)C1=CC=CC=C1COC1=NN(C=2C=CC(Cl)=CC=2)C=C1 HZRSNVGNWUDEFX-UHFFFAOYSA-N 0.000 claims description 17
- WOSNCVAPUOFXEH-UHFFFAOYSA-N thifluzamide Chemical compound S1C(C)=NC(C(F)(F)F)=C1C(=O)NC1=C(Br)C=C(OC(F)(F)F)C=C1Br WOSNCVAPUOFXEH-UHFFFAOYSA-N 0.000 claims description 17
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229960000892 attapulgite Drugs 0.000 claims description 2
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- 229940077388 benzenesulfonate Drugs 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
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- 239000001397 quillaja saponaria molina bark Substances 0.000 claims description 2
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- 150000007949 saponins Chemical class 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- 239000005909 Kieselgur Substances 0.000 claims 1
- 239000003623 enhancer Substances 0.000 claims 1
- 239000000575 pesticide Substances 0.000 abstract description 8
- 241000196324 Embryophyta Species 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 2
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
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- OICGFSUWXCJLCO-UHFFFAOYSA-N 1-ethylsulfonylsulfanylethane Chemical compound CCSS(=O)(=O)CC OICGFSUWXCJLCO-UHFFFAOYSA-N 0.000 description 1
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 1
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- 206010059866 Drug resistance Diseases 0.000 description 1
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- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical compound NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 description 1
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- 229930003270 Vitamin B Natural products 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
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- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
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- 239000004927 clay Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000017858 demethylation Effects 0.000 description 1
- 238000010520 demethylation reaction Methods 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008029 eradication Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
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- 231100000053 low toxicity Toxicity 0.000 description 1
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- 230000004060 metabolic process Effects 0.000 description 1
- 230000006540 mitochondrial respiration Effects 0.000 description 1
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- 231100000252 nontoxic Toxicity 0.000 description 1
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- 239000012466 permeate Substances 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000004763 spore germination Effects 0.000 description 1
- 150000003432 sterols Chemical class 0.000 description 1
- 235000003702 sterols Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- -1 thiazole amide Chemical class 0.000 description 1
- PLSAJKYPRJGMHO-UHFFFAOYSA-N ursolic acid Natural products CC1CCC2(CCC3(C)C(C=CC4C5(C)CCC(O)C(C)(C)C5CCC34C)C2C1C)C(=O)O PLSAJKYPRJGMHO-UHFFFAOYSA-N 0.000 description 1
- 229940096998 ursolic acid Drugs 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
-
- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
-
- 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
- A01P3/00—Fungicides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Agronomy & Crop Science (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Mycology (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a medicament for preventing and treating spike blight of plantain and a preparation method thereof, belonging to the technical field of pesticide preparation and plant disease prevention and treatment. The pesticide provided by the invention has the advantages that the incidence of the spike blight of plantain is reduced to 1.6% 50 days after the pesticide is applied, the probability of infection of the spike blight by tender tissues of the plantain is effectively reduced, the survival rate of the plantain is improved, and the good growth of plants is promoted, the pesticide is efficient and low-toxic, and the sustainable development of agriculture is facilitated.
Description
Technical Field
The invention relates to a medicament for preventing and treating spike blight of plantain and a preparation method thereof, belonging to the technical field of pesticide preparation and plant disease prevention and treatment.
Background
Plantago asiatica L, a plant of the Plantago genus of the Plantaginaceae family, is also a biennial or perennial herb. The whole body of plantain herb is treasure, and the nature and taste of the plantain herb are sweet, cold and nontoxic, and the plantain herb has the effects of clearing heat, promoting urination, eliminating phlegm, relieving cough, clearing liver and improving eyesight, and is considered in compendium of materia medica: it is suitable for long-term administration. Herba plantaginis has effects of lowering blood pressure, and treating acute hepatitis and acute and chronic bronchitis. The herba plantaginis contains plantain, ursolic acid, vitamin C, and vitamin B. The Chinese medicinal composition is matched with the red dates and the medlar, can bring out the best in each other, can also interact with each other, and can play a role in clearing heat and promoting urination, nourishing liver and yin and tonifying kidney.
At present, in order to improve the yield of plantain, people generally adopt increasing the application amount of nitrogen fertilizer and unreasonable cultivation, so that the area of the plantain spike blight is gradually enlarged, and the plantain spike blight becomes a large disease of the plantain.
The spike blight of the plantain is infected by a fungus of the genus Fusarium, which mainly damages spikes and also can damage leaves, the disease is gradually brown along with the spread of the disease, the spikes with light disease are not full, the yield is reduced by 20-30%, the spikes with heavy disease are died in advance, even the grains are not harvested, and the yield and the quality of the plantain are seriously influenced. However, the existing agents for preventing and treating the spike disease of plantain are generally poor in prevention and treatment effect, so that it is necessary to provide an agent for effectively preventing and treating the spike blight of plantain.
Disclosure of Invention
In order to solve the technical problems, the invention provides a medicament for preventing and treating plantain spike blight and a preparation method thereof, the medicament obtained by compounding prothioconazole, pyraclostrobin and thifluzamide as effective components and matching with a dry base prepared from an accelerant, a wetting agent, a dispersing agent and a filler belongs to the field of wettable powder, and the medicament can effectively reduce the probability of infection of plantain tender tissues with spike blight and realize the purpose of preventing and treating the plantain spike blight for a long time.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a medicament for preventing and treating plantago paniculata, which comprises the effective components of prothioconazole, pyraclostrobin and thifluzamide.
Further, the medicament comprises the following raw materials in parts by weight: 10 to 60 parts of active ingredients, 15 to 35 parts of solvent, 4 to 15 parts of accelerant, 2 to 4 parts of dispersant, 5 to 9 parts of wetting agent and 20 to 30 parts of filler.
Further, the mass ratio of prothioconazole, pyraclostrobin and thifluzamide is 1.
Further, the accelerant comprises dimethyl sulfoxide and garlic extract, and the mass ratio of the dimethyl sulfoxide to the garlic extract is 3.
Wherein the dimethyl sulfoxide belongs to aprotic polar solvent, has excellent permeability, can promote effective components in the medicament to rapidly permeate to ears of the plantain, and can improve the absorptivity of the plantain to urea formaldehyde resin, garlic extract and oxamide.
The garlic extract mainly contains ethylicin which can inhibit the growth of the fungus of the genus Sphaerotheca, and simultaneously reacts with substances containing sulfydryl in the fungus body to inhibit the normal metabolism of the fungus body and further kill the germs of the spike blight of the plantago asiatica.
Further, the dispersant is one or more of polycarboxylate, benzene sulfonate or lignosulfonate.
Further, the wetting agent is one or more of saponin, sodium lauryl sulfate or nekal.
Further, the filler is one or more of attapulgite, diatomite, pyrophyllite, kaolin or pottery clay, and the solvent is toluene, N-dimethylacetamide, methanol or xylene.
The invention also provides a preparation method of the agent for preventing and treating plantain spike blight, which comprises the following steps:
(1) Weighing the effective components, the solvent, the accelerator, the dispersant, the wetting agent and the filler according to the weight parts for later use;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to prepare a dry base;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (4) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring to obtain the agent for preventing and treating the plantago spike blight.
Further, in the step (2), the powder is pulverized to a particle size of 50 to 120. Mu.m.
Further, in the step (4), the rotation speed of stirring is 500-800 r/min, the time is 15-25 min, and the stirring after spraying can promote the adsorption rate of the effective components in the dry carrier and improve the slow release time.
The invention discloses the following technical effects:
the effective component prothioconazole in the pesticide is a sterol demethylation inhibitor, can provide good systemic action, has excellent protection, treatment and eradication activities, has long lasting period, is safe to crops, also shows good green-keeping and anti-aging effects, and has obvious yield-increasing effect; pyraclostrobin is a mitochondrial respiration inhibitor, has strong capability of inhibiting germ spore germination, has good inhibition effect on hypha growth in leaves, has long lasting period and has potential therapeutic activity; thifluzamide belongs to thiazole amide agents, has strong systemic conductivity and long-lasting effect, has obvious synergistic effect on preventing and treating plantago paniculata and reduces the dosage of single agent used alone by compounding the three components. Each component in the promoter can not only improve the resistance of the plantain, but also promote the absorption of the effective components, thereby further improving the prevention and treatment effect. In addition, the preparation process loads the effective components on the dry base in a liquid form, and can achieve the technical effects of improving the control effect and delaying the generation of drug resistance of pathogenic bacteria.
The agent of the invention reduces the incidence of the spike blight of the plantain herb to 1.6 percent in 50 days, and the disease index of the plantain herb is obviously lower than that of the comparative example, which shows that the agent of the invention can effectively reduce the probability of the tender tissues of the plantain herb to be infected with the spike blight, improve the survival rate of the plantain herb and further promote the good growth of plants.
The pesticide prepared by the invention belongs to wettable powder, has small field dosage, reduces the production and use cost, can reduce pesticide residue and environmental pollution, has high efficiency and low toxicity, and is more favorable for the sustainable development of agriculture.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every intervening value, to the extent any stated or intervening value in a stated range, and every other stated or intervening value in that stated range, is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. It is intended that the specification and examples be considered as exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including but not limited to.
The raw materials used in the examples of the present invention are commercially available.
The technical solution of the present invention is further illustrated by the following examples.
Example 1
(1) Weighing 40 parts of effective components (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1 to 2), 20 parts of solvent (toluene), 12 parts of accelerator (a mixture of dimethyl sulfoxide and garlic extract in a mass ratio of 3;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to obtain a dry base, wherein the particle size of the mixture is 100 mu m;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (3) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring at the rotating speed of 500r/min for 18min to obtain the agent for preventing and treating the plantago paniculata disease.
Example 2
(1) Weighing 10 parts of effective components (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to obtain a dry base, wherein the particle size of the mixture is 80 mu m;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (3) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring at the rotating speed of 600r/min for 22min to obtain the agent for preventing and treating the plantago paniculata disease.
Example 3
(1) Weighing 60 parts of effective components (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to obtain a dry base, wherein the particle size of the mixture is 120 mu m;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (3) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring at the rotating speed of 700r/min for 20min to obtain the agent for preventing and treating the plantago paniculata.
Example 4
(1) Weighing 30 parts of effective components (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1 to 2), 20 parts of solvent (xylene), 11 parts of accelerator (a mixture of dimethyl sulfoxide and garlic extract in a mass ratio of 3;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to obtain a dry base, wherein the particle size of the mixture is 50 mu m;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (3) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring at the rotating speed of 500r/min for 25min to obtain the agent for preventing and treating the plantago paniculata disease.
Example 5
(1) Weighing 35 parts of effective components (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to obtain a dry base, wherein the particle size of the mixture is 80 mu m;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (3) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring at the rotating speed of 800r/min for 15min to obtain the agent for preventing and treating the plantago paniculata.
Comparative example 1
The difference is only that the active ingredients are pyraclostrobin and thifluzamide with the mass ratio of 1.
Comparative example 2
The difference from example 1 is only that the effective components are prothioconazole and thifluzamide in a mass ratio of 1.
Comparative example 3
The difference from the example 1 is only that the effective components are prothioconazole and pyraclostrobin with the mass ratio of 1.
Comparative example 4
The difference from example 1 is only that the effective components are prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1.
Comparative example 5
The difference from example 1 is only that prothioconazole is the active ingredient.
Comparative example 6
The difference is that the active ingredient is pyraclostrobin, which is the same as example 1.
Comparative example 7
The difference from example 1 is only that the effective ingredient is thifluzamide.
Comparative example 8
The difference from example 1 is that 80 parts of active ingredients (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1.
Comparative example 9
The only difference from example 1 is that in step (2), the powder was pulverized to a particle size of 250. Mu.m.
Comparative example 10
The only difference from example 1 is that in step (4), the stirring speed is 800r/min and the time is 12min.
Comparative example 11
Weighing 40 parts of effective components (prothioconazole, pyraclostrobin and thifluzamide in a mass ratio of 1 to 2), 20 parts of solvent (toluene), 12 parts of accelerator (a mixture of dimethyl sulfoxide and garlic extract in a mass ratio of 3.
And (3) field efficacy test:
selecting 17 test fields (selecting the field in which the plantain spike blight occurs in the past year), wherein the area of each test field is 25m 2 The agents prepared in examples 1 to 5 and comparative examples 1 to 11 were diluted 500 times with water and sprayed in 16 test fields at the pre-heading stage, respectively, at a spraying amount of 200g/m 2 And then spraying once again every 10 days for 3 times, investigating and recording the disease occurrence conditions of the plantain spike blight on the 10 th, 30 th and 50 th days (basic setting of the disease in the field) after the pesticide is applied, wherein the other group is a control group and is not treated, and the results are shown in table 1.
TABLE 1 differential treatment of Plantago asiatica Subtraction disease Rate
The disease rate of the plantain spike blight is% = diseased plants/total planted plants.
The method classifies the vehicle ear scion into grade 6 according to the field morbidity, wherein the specific grading criteria are as follows:
level 0: the whole spike is disease-free;
stage 1: the disease length of the spike is less than 1/10 of the total spike length;
stage 2: the disease length of the spike is more than or equal to 1/10 of the total spike length and less than 1/5 of the total spike length;
and 3, level: the disease length of the spike is more than or equal to 1/5 of the total spike length and less than 1/3 of the total spike length;
and 4, stage 4: the disease length of the spike is more than or equal to 1/3 of the total spike length and less than 1/2 of the total spike length;
and 5, stage: the disease length of the spike is more than or equal to 1/2 of the total spike length until the whole spike is withered;
the control zone is the control group, and the treatment zone is the treatment groups of the examples and the comparative examples;
the results of the investigation are shown in Table 2.
TABLE 2 investigation of plantain diseases (50 days after the first dose)
As can be seen from tables 1 and 2, the control effect of the agent prepared by the embodiment of the invention on the spike blight of plantain is obviously higher than that of the comparative example, the agent can play a long-acting control effect only by continuously applying the agent for 3 times, and the disease grade of the plantain in the experimental field of the embodiment is obviously lower than that of the comparative example by investigation on the 50 th day after the agent is applied (the disease is basically shaped in the field).
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The medicament for preventing and treating the plantago paniculata disease is characterized by comprising the effective components of prothioconazole, pyraclostrobin and thifluzamide.
2. The medicament as claimed in claim 1, which comprises the following raw materials in parts by weight: 10 to 60 parts of active ingredients, 15 to 35 parts of solvent, 4 to 15 parts of accelerant, 2 to 4 parts of dispersant, 5 to 9 parts of wetting agent and 20 to 30 parts of filler.
3. The medicament according to claim 1, wherein the mass ratio of prothioconazole, pyraclostrobin and thifluzamide is 1.
4. The agent according to claim 2, wherein the enhancer comprises dimethyl sulfoxide and garlic extract.
5. The medicament of claim 2, wherein the dispersant is one or more of a polycarboxylate, benzenesulfonate or lignosulfonate.
6. The medicament of claim 2, wherein the wetting agent is one or more of saponin, sodium lauryl sulfate, or nekal.
7. The medicament of claim 2, wherein the filler is one or more of attapulgite, diatomaceous earth, pyrophyllite, kaolin, or china clay, and the solvent is toluene, N-dimethylacetamide, methanol, or xylene.
8. The preparation method of the agent for controlling the spike blight of plantain according to any one of claims 1 to 7, comprising the steps of:
(1) Weighing the effective components, the solvent, the accelerator, the dispersant, the wetting agent and the filler according to the weight parts for later use;
(2) Uniformly mixing the filler, the wetting agent, the dispersing agent and the accelerator, and crushing to prepare a dry base;
(3) Mixing the effective components with solvent to obtain liquid matrix;
(4) And (3) uniformly spraying the liquid matrix prepared in the step (3) onto the dry matrix prepared in the step (2), and stirring to obtain the agent for preventing and treating the plantago paniculata.
9. The method according to claim 8, wherein in the step (2), the powder is pulverized to a particle size of 50 to 120 μm.
10. The method according to claim 8, wherein in the step (4), the stirring is performed at a rotation speed of 500 to 800r/min for 15 to 25min.
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| WO2020232779A1 (en) * | 2019-05-22 | 2020-11-26 | 安徽久易农业股份有限公司 | Prothioconazole dry suspending agent, preparation method therefor and application thereof |
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