CN103120161B - Pyraclostrobin microcapsule suspending agent - Google Patents
Pyraclostrobin microcapsule suspending agent Download PDFInfo
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- CN103120161B CN103120161B CN201310079075.9A CN201310079075A CN103120161B CN 103120161 B CN103120161 B CN 103120161B CN 201310079075 A CN201310079075 A CN 201310079075A CN 103120161 B CN103120161 B CN 103120161B
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- Prior art keywords
- pyraclostrobin
- agent
- microcapsule suspending
- suspending agent
- solvent
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- 239000005869 Pyraclostrobin Substances 0.000 title claims abstract description 57
- 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 title claims abstract description 57
- 239000003094 microcapsule Substances 0.000 title claims abstract description 46
- 239000000375 suspending agent Substances 0.000 title claims abstract description 46
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000000080 wetting agent Substances 0.000 claims abstract description 11
- 239000002562 thickening agent Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 241000233679 Peronosporaceae Species 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 11
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 10
- 241000209140 Triticum Species 0.000 claims description 10
- 235000021307 Triticum Nutrition 0.000 claims description 10
- 240000008067 Cucumis sativus Species 0.000 claims description 8
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 claims description 7
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 claims description 7
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 claims description 7
- 229920001285 xanthan gum Polymers 0.000 claims description 7
- 108010010803 Gelatin Proteins 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 4
- 239000008273 gelatin Substances 0.000 claims description 4
- 235000019322 gelatine Nutrition 0.000 claims description 4
- 235000011852 gelatine desserts Nutrition 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 4
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 9
- 239000000575 pesticide Substances 0.000 abstract description 5
- 230000002045 lasting effect Effects 0.000 abstract description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 2
- 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 abstract 2
- 239000004480 active ingredient Substances 0.000 abstract 1
- 244000052616 bacterial pathogen Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003449 preventive effect Effects 0.000 description 30
- 238000000034 method Methods 0.000 description 21
- 239000003814 drug Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000002776 aggregation Effects 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 7
- 201000010099 disease Diseases 0.000 description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 7
- 238000005187 foaming Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 210000000481 breast Anatomy 0.000 description 6
- 241000221785 Erysiphales Species 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000361 pesticidal effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- LYCAIKOWRPUZTN-NMQOAUCRSA-N 1,2-dideuteriooxyethane Chemical compound [2H]OCCO[2H] LYCAIKOWRPUZTN-NMQOAUCRSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 241000235349 Ascomycota Species 0.000 description 2
- 241000221198 Basidiomycota Species 0.000 description 2
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 240000003553 Leptospermum scoparium Species 0.000 description 2
- 235000015459 Lycium barbarum Nutrition 0.000 description 2
- 244000061176 Nicotiana tabacum Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 241000233654 Oomycetes Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 241000918585 Pythium aphanidermatum Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000857 drug effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000002538 fungal effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000002075 main ingredient Substances 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 206010011732 Cyst Diseases 0.000 description 1
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- 239000005800 Kresoxim-methyl Substances 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 208000003351 Melanosis Diseases 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 240000008790 Musa x paradisiaca Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000030833 cell death Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- ZOTBXTZVPHCKPN-HTXNQAPBSA-N kresoxim-methyl Chemical compound CO\N=C(\C(=O)OC)C1=CC=CC=C1COC1=CC=CC=C1C ZOTBXTZVPHCKPN-HTXNQAPBSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 210000003470 mitochondria Anatomy 0.000 description 1
- 230000002438 mitochondrial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the field of pesticide preparation, and discloses a pyraclostrobin microcapsule suspending agent. The pyraclostrobin microcapsule suspending agent consists of the following components in percentage by weight: 1-40% of pyraclostrobin, 1-40% of urea formaldehyde resin, 1-40% of solvent, 1-10% of wetting agent, 1-10% of dispersing agent, 0.1-2% of thickening agent, 1-10% of emulsifying agent, 0-5% of anti-freezing agent and the balance of water. According to the invention, the pyraclostrobin is used as an active ingredient, and the urea formaldehyde resin and matching dispersing agent, wetting agent and the like are selected as accessories to prepare a high-quality microcapsule suspending agent with high encapsulation efficiency, dispersity and suspensibility; and the microcapsule suspending agent realizes a lasting and constant prevention effect on a crop, is superior to the existing pyraclostrobin pesticide preparation and a microcapsule suspending agent prepared by other accessories, and can effectively protect the crop from being damaged by pathogenic bacteria.
Description
Technical field
The present invention relates to field of pesticide preparation, relate to a kind of pyraclostrobin microcapsule suspending agent specifically.
Background technology
Pyraclostrobin is a kind of methoxy acrylic bactericide having pyrrazole structure concurrently, it suppresses mitochondrial respiratory effect by stoping electron transmission between thin race pigment b and c1, make mitochondria can not produce and provide the energy required for cell eubolism (ATP), finally cause cell death.Pyraclostrobin can be used for the various crops such as wheat, peanut, paddy rice, vegetables, fruit tree, tobacco, tea tree, ornamental plants, lawn, the multiple diseases such as leaf blight, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, shot hole, brown spot, damping off that control sac fungi, basidiomycetes, imperfect fungus and Oomycete fungal cause.Better control efficiency is all had to the early blight of powdery mildew of cucumber, downy mildew, banana freckle, leaf spot, downy mildew of garpe, anthracnose, powdery mildew, tomato and potato, late blight, powdery mildew and leaf blight etc.For barley and wheat, the generation of leaf blight, glume blight, leaf rust, yellow rust, leaf blight, reticulate pattern disease, spot blight, moire disease effectively can be prevented and treated.
At the agriculture field of present stage, normally pyraclostrobin is made cream preparation to use, but traditional pyraclostrobin missible oil lasting period is poor, drug effect can not lasting stability, and preventive effect is poor.Just need thus to increase spraying times, aggravate the harm to people, crop and environment.Therefore, be badly in need of providing the novel pyrazole kresoxim-methyl Pesticidal products that a kind of preventive effect is high, the lasting period is long.
Summary of the invention
In view of this, the object of the invention is to provide a kind of pyraclostrobin microcapsule suspending agent, makes pyraclostrobin microcapsule suspending agent preventive effect of the present invention higher and keeps constant preventive effect for a long time, and available protecting crop is not by the infringement of pathogen.
For realizing object of the present invention, the present invention adopts following technical scheme:
A kind of pyraclostrobin microcapsule suspending agent, by weight percentage, by 1%-40% pyraclostrobin, 1%-40% Lauxite, 1%-40% solvent, 1%-10% wetting agent, 1%-10% dispersant, 0.1%-2% thickener, 1%-10% emulsifier, 0-5% antifreezing agent and excess water form;
Described emulsifier is selected from 2201 emulsifier, 0201B emulsifier, 0203B emulsifier, agriculture breast 500, agriculture breast 600, in Nongru-700 one or more, described solvent is selected from S-200# solvent, S-150# solvent, toluene, dimethylbenzene, in acetone one or more, described wetting agent is selected from SP-6821, SP-63R, BC/10, TERSPERSE2288, in TERSPERSE4894 one or more, described dispersant is selected from SP-SC3, SP-SC29, SP-2728, SP-3060, SP-3266, in TERSPERSE2500 one or more, described thickener is selected from gelatin, sodium carboxymethylcellulose, hydroxyethylcellulose, modified starch, xanthans, bentonite, silica, in aluminium-magnesium silicate one or more.
As preferably, by weight percentage, by 10%-30% pyraclostrobin, 10%-30% Lauxite, 5%-35% solvent, 2%-8% wetting agent, 2%-8% dispersant, 0.5%-2% thickener, 3%-8% emulsifier, 0-5% antifreezing agent and excess water form.
For the defect of existing pyraclostrobin, the present invention makes pyraclostrobin microcapsule suspending agent with pyraclostrobin, pollopas and suitable dose, wetting agent, dispersant, thickener, emulsifier for material, compensate for the defect that existing pyraclostrobin formulations of pesticide preventive effect is constant not lastingly.
Microcapsule suspending agent (CS) utilizes macromolecular material that is natural or synthesis to form nucleocapsid structure small container, is a kind of microencapsulation with semipermeability cyst membrane, and agricultural chemicals is wherein coated, and be suspended in the formulations of pesticide in water.Microcapsule suspending agent is different from other common pesticidal preparations, the selection of auxiliary material directly affects its envelop rate, suspensibility, whether the relation main ingredients such as dispersiveness can be constant lastingly, present invention applicant is on the basis of further investigation, select main ingredient, the component that auxiliary material matches is prepared, prepared microcapsule suspending agent envelop rate >=90%, particle diameter (0.25mm ~ 1.4mm standard screen) >=95%, suspensibility >=90%, continue foaming characteristic (after 1min)≤15.0mL, dispersed >=90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, low-temperature stability is qualified, and the preventive effect of 20 days is still efficient after dispenser, preventive effect is not occurred to extend in time and the problem reduced.The present invention's auxiliary material that also have selected outside the scope of the invention carries out the preparation of microcapsule suspending agent, and the performance parameters such as its envelop rate and preventive effect are all not as the present invention, and the selection of visible different auxiliary material can affect the performance of the drug effect of pyraclostrobin.
As preferably, emulsifier of the present invention is 0201B emulsifier or agriculture breast 600, described solvent is S-200# solvent, S-150# solvent or dimethylbenzene, and described dispersant is SP-SC3, SP-SC29, SP-3266 or TERSPERSE2500, and described thickener is gelatin, xanthans or Magnesiumaluminumsilicate.
As preferably, described antifreezing agent be selected from ethylene glycol, propane diols, glycerine, hexylene glycol, urea, ammonium sulfate, sodium chloride, calcium chloride one or more, be more preferably ethylene glycol or glycerine.
In an embodiment of the present invention, pyraclostrobin microcapsule suspending agent of the present invention, the pyraclostrobin microcapsule suspending agent of contrast and commercially available pyraclostrobin missible oil are used to vegetable crop and cereal crops, result shows, the preventive effect of product of the present invention is higher than the product of other two contrasts, particularly to control cucumber downy mildew, Chinese cabbage anthracnose and wheat rust in, therefore pyraclostrobin microcapsule suspending agent of the present invention can be used in the disease control of crops, is preferred in the control of cucumber downy mildew, Chinese cabbage anthracnose and wheat rust.
Pyraclostrobin of the present invention can be prepared by preparation technologies such as interfacial polymerization, physicomechanical processes, phase separation method, emulsion-solvent evaporated methods.Preferably, prepared by microcapsule suspending agent situ aggregation method of the present invention, preparation method is as follows, wherein can prepare in accordance with the following methods for Lauxite, also can by commercially available acquisition:
Urea and formaldehyde (mol ratio=1:1.5-2.0) and appropriate amount of deionized water is added in the there-necked flask that thermometer, agitating device are housed, the pH to 8.0 of reaction system is regulated with sodium hydroxide, be heated to 70-80 DEG C, stirring at low speed reaction 1h, obtains the Lauxite prepolymer aqueous solution.Under normal temperature, former for pyraclostrobin medicine is dissolved in a solvent, add emulsifier, then add water, stir the oil-in-water shape emulsion that rear formation is stable, add Lauxite prepolymer, then keep the temperature of 70-80 DEG C to continue to stir 60min.In whipping process, gradation adds watery hydrochloric acid regulation system pH=2.0, then underspeeds gradually.To reaction end, add NaOH regulation system pH value to neutral.Add appropriate wetting agent, dispersant, thickener, namely obtain pyraclostrobin microcapsule suspending agent.
From above technical scheme; the present invention take pyraclostrobin as active component; Lauxite and the dispersant matched, wetting agent etc. is selected to be auxiliary material; be prepared into envelop rate, dispersiveness, high-quality microcapsule suspending agent that suspensibility is higher; it is constant lastingly to the preventive effect of farming; be better than microcapsule suspending agent prepared by existing pyraclostrobin pesticidal preparations and other auxiliary materials, can available protecting crop from invading pathogens.
Embodiment
The embodiment of the invention discloses a kind of pyraclostrobin microcapsule suspending agent.Those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention and method are described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope product as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
Pyraclostrobin microcapsule suspending agent of the present invention can be used for the various crops such as wheat, peanut, paddy rice, vegetables, fruit tree, tobacco, tea tree, ornamental plants, lawn, the multiple diseases such as leaf blight, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, shot hole, brown spot, damping off that control sac fungi, basidiomycetes, imperfect fungus and Oomycete fungal cause.
The present invention is set forth further below in conjunction with embodiment.
Embodiment 1:5% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 5%, Lauxite 5%, 0201B emulsifier 3.5%, S-150# solvent 4%, SP-63R1%, SP-SC32%, xanthans 0.2%, ethylene glycol 2%, surplus are water, and situ aggregation method prepares.
Envelop rate >=90%, particle diameter (0.25mm ~ 1.4mm standard screen) >=95%, suspensibility >=90%, continues foaming characteristic (after 1min)≤15.0mL, and dispersed >=90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 2:10% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 10%, Lauxite 8%, agriculture breast 6004%, dimethylbenzene 8%, SP-68211%, SP-SC292%, aluminium-magnesium silicate 0.3%, surplus are water, and situ aggregation method prepares.
Envelop rate >=90%, particle diameter (0.25mm ~ 1.4mm standard screen) >=95%, suspensibility >=90%, continues foaming characteristic (after 1min)≤15.0mL, and dispersed >=90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 3:25% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 25%, Lauxite 23%, 0201B emulsifier 5%, S-200# solvent 15%, SP-68212%, SP-32664%, xanthans 0.2%, ethylene glycol 3%, surplus are water, and situ aggregation method prepares.
Envelop rate >=90%, particle diameter (0.25mm ~ 1.4mm standard screen) >=95%, suspensibility >=90%, continues foaming characteristic (after 1min)≤15.0mL, and dispersed >=90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 4:30% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 30%, Lauxite 28%, 0201B emulsifier 5%, agriculture breast 6004%, dimethylbenzene 30%, BC/101%, SP-SC293%, gelatin 0.5%, ethylene glycol 2%, surplus are water, and situ aggregation method prepares.
Envelop rate >=90%, particle diameter (0.25mm ~ 1.4mm standard screen) >=95%, suspensibility >=90%, continues foaming characteristic (after 1min)≤15.0mL, and dispersed >=90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 5:40% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 40%, Lauxite 39%, 0201B4%, S-200# solvent 40%, TERSPERSE22882%, TERSPERSE25003%, xanthans 3%, glycerine 2%, surplus are water, and situ aggregation method prepares.
Envelop rate >=90%, particle diameter (0.25mm ~ 1.4mm standard screen) >=95%, suspensibility >=90%, continues foaming characteristic (after 1min)≤15.0mL, and dispersed >=90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 6: the microcapsule suspending agent contrast of different auxiliary material
Contrast microcapsule suspension agent prescription: 5% pyraclostrobin, peaceful breast No. 33 5%, solvent naphtha No. 100 10%, lauryl sodium sulfate 3%, sodium lignin sulfonate 3%, xanthans 0.2%, ethylene glycol 1%, surplus are water, are prepared by situ aggregation method
The pyraclostrobin microcapsule suspending agent technical indicator obtained with filling a prescription above is as follows: envelop rate 87%, particle diameter (0.25mm ~ 1.4mm standard screen) 92%, suspensibility 88%, continue foaming characteristic (after 1min) 15.0mL, dispersed 90%, pH value 7.0 ~ 10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Compared with the microcapsule suspending agent of embodiment of the present invention same amount, the performance parameters such as its envelop rate, suspensibility and dispersiveness are all not as the present invention.
Carry out the control of cucumber downy mildew, Chinese cabbage anthracnose and wheat rust respectively with the product of embodiment 1 and above-mentioned contrast microcapsule suspending agent, the results are shown in Table 1.
Table 1 microcapsule suspending agent preventive effect investigation result
As can be seen from the above table, in the control to cucumber downy mildew, Chinese cabbage anthracnose and wheat rust, pyraclostrobin of the present invention all shows higher, stable preventive effect for 20 days after 7 days and medicine after medicine, and the pyraclostrobin microcapsule suspending agent preventive effect of contrast is not as product of the present invention, and along with the prolongation of time, declining appears in preventive effect.
Embodiment 7: with the preventive effect comparative trial of pyraclostrobin missible oil
1, to the preventive effect of cucumber downy mildew
Getting 25% pyraclostrobin microcapsule suspending agent of the embodiment of the present invention 3, is that consumption is 120g (a.i.)/hm to complying comparative trial with 250g/L pyraclostrobin missible oil
2, each process arranges 3 repetitions, and result gets 3 mean values repeated.The preventive effect of 7d, 20d statistics to cucumber downy mildew after medicine, the results are shown in Table 2 respectively.
Table 2 tests process and preventive effect
As seen from the above table, after medicine in the preventive effect of 7 days, invention formulation and missible oil do not have significant difference, but along with the prolongation of time, after medicine 20 days, microcapsule suspending agent of the present invention still maintained higher preventive effect, and the decline of significance appears in missible oil.
2, to the preventive effect of Chinese cabbage anthracnose
Getting 30% pyraclostrobin microcapsule suspending agent of the embodiment of the present invention 4, is that consumption is 120g (a.i.)/hm to complying comparative trial with 250g/L pyraclostrobin missible oil
2, each process arranges 3 repetitions, and result gets 3 mean values repeated.The preventive effect of 7d, 20d statistics to Chinese cabbage anthracnose after medicine, the results are shown in Table 3 respectively.
Table 3 tests process and preventive effect
As seen from the above table, after medicine in the preventive effect of 7 days, invention formulation and missible oil do not have significant difference, but along with the prolongation of time, after medicine 20 days, microcapsule suspending agent of the present invention still maintained higher preventive effect, and the decline of significance appears in missible oil.
3, to the preventive effect of wheat rust
Getting 40% pyraclostrobin microcapsule suspending agent of the embodiment of the present invention 5, is that consumption is 120g (a.i.)/hm to complying comparative trial with 250g/L pyraclostrobin missible oil
2, each process arranges 3 repetitions, and result gets 3 mean values repeated.The preventive effect of 7d, 20d statistics to wheat rust after medicine, the results are shown in Table 4 respectively.
Table 4 tests process and preventive effect
As seen from the above table, after medicine in the preventive effect of 7 days, invention formulation and missible oil do not have significant difference, but along with the prolongation of time, after medicine 20 days, microcapsule suspending agent of the present invention still maintained higher preventive effect, and the decline of significance appears in missible oil.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (3)
1. a pyraclostrobin microcapsule suspending agent, it is characterized in that, by weight percentage, by 1%-40% pyraclostrobin, 1%-40% Lauxite, 1%-40% solvent, 1%-10% wetting agent, 1%-10% dispersant, 0.1%-2% thickener, 1%-10% emulsifier, 0-5% antifreezing agent and excess water form;
Described emulsifier is 0201B emulsifier, described solvent is S-200# solvent, S-150# solvent or dimethylbenzene, described wetting agent is SP-6821, SP-63R, BC/10 or TERSPERSE2288, described dispersant is SP-SC3, SP-SC29, SP-3266 or TERSPERSE2500, described thickener is selected from gelatin xanthans or aluminium-magnesium silicate, and antifreezing agent is ethylene glycol or glycerine.
2. microcapsule suspending agent according to claim 1, it is characterized in that, by weight percentage, by 10%-30% pyraclostrobin, 10%-30% Lauxite, 5%-35% solvent, 2%-8% wetting agent, 2%-8% dispersant, 0.5%-2% thickener, 3%-8% emulsifier, 0-5% antifreezing agent and excess water form.
3. microcapsule suspending agent according to claim 1 or 2, is characterized in that, for preventing and treating cucumber downy mildew, Chinese cabbage anthracnose and wheat rust.
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| CN104823996A (en) * | 2015-05-13 | 2015-08-12 | 山东农业大学 | Preparation method of pyraclostrobin microcapsules |
| CN106070275A (en) * | 2016-06-03 | 2016-11-09 | 安徽广信农化股份有限公司 | The method of the pyraclostrobin microcapsule of preparation uniform particle size |
| CN105961384A (en) * | 2016-06-03 | 2016-09-28 | 安徽广信农化股份有限公司 | Method for preparing pyraclostrobin micro-capsule through re-coagulation method |
| CN106472499A (en) * | 2016-09-07 | 2017-03-08 | 江苏省苏科农化有限责任公司 | A kind of pyraclostrobin/Isoprothiolane microcapsule suspending agent and preparation method and application |
| CN108651498A (en) * | 2018-07-17 | 2018-10-16 | 郭秦 | A kind of pyraclostrobin microcapsule suspension agent producing process |
| CN110973128A (en) * | 2019-12-25 | 2020-04-10 | 山东省绿士农药有限公司 | Benzopyrazole microcapsule suspending agent for preventing and treating gummy stem blight of watermelon and preparation method thereof |
| CN111296424A (en) * | 2020-03-20 | 2020-06-19 | 北京工业大学 | Preparation of boscalid-coated mesoporous hydrophilic nanocomposite system by one-step method |
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| CN102239864A (en) * | 2010-05-16 | 2011-11-16 | 青岛奥迪斯生物科技有限公司 | Bactericidal composition containing pyraclostrobin and dimethomorph |
| WO2011156048A1 (en) * | 2010-06-07 | 2011-12-15 | Dow Agrosciences Llc | Microcapsule suspensions including high levels of agriculturally active ingredients |
| CN102550575A (en) * | 2011-12-22 | 2012-07-11 | 广东中迅农科股份有限公司 | Pyraclostrobin ester microcapsule suspending agent |
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| CN102239864A (en) * | 2010-05-16 | 2011-11-16 | 青岛奥迪斯生物科技有限公司 | Bactericidal composition containing pyraclostrobin and dimethomorph |
| WO2011156048A1 (en) * | 2010-06-07 | 2011-12-15 | Dow Agrosciences Llc | Microcapsule suspensions including high levels of agriculturally active ingredients |
| CN102550575A (en) * | 2011-12-22 | 2012-07-11 | 广东中迅农科股份有限公司 | Pyraclostrobin ester microcapsule suspending agent |
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