CN105145549A - Water emulsion containing styrene-acrylic emulsion and preparation method of water emulsion - Google Patents
Water emulsion containing styrene-acrylic emulsion and preparation method of water emulsion Download PDFInfo
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- CN105145549A CN105145549A CN201510494529.8A CN201510494529A CN105145549A CN 105145549 A CN105145549 A CN 105145549A CN 201510494529 A CN201510494529 A CN 201510494529A CN 105145549 A CN105145549 A CN 105145549A
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Abstract
The invention discloses a water emulsion containing a styrene-acrylic emulsion and a preparation method of the water emulsion. The water emulsion containing the styrene-acrylic emulsion comprises components in percentage by weight as follows: 1%-50% of pesticide effective ingredients, 0.1%-10% of an acrylic emulsion, 1%-30% of an environment-friendly solvent, 1%-20% of a surfactant, 1%-15% of a stabilizer and the balance of water. The prepared water emulsion does not contain aromatic organic solvents and reduces environmental pollution; a production process is simple, and the energy consumption is low; the droplet size of the water emulsion is smaller than 0.2 mu m, high dispersity, uniformity and high stability of the components are realized, the water emulsion is high in stability, long in efficacy lasting period and safe to use and causes little environmental pollution, and accordingly, and the use efficiency of a main agent and auxiliary agents is improved.
Description
Technical field
The invention belongs to environmental-protecting chemical pesticides application production field, particularly the application technology of a kind of acrylic emulsion in aqueous emulsion.
Background technology
Rationally scientifically use agricultural chemicals to improve control efficiency, delay pest and develop immunity to drugs or expand that the scope of application is double controls different types of pest, save manpower and dosage, reduce costs, improve drug effect, reduce toxicity, strengthen the safety to people, animal.
The facility that various agricultural chemicals is used have its specific purposes and performance, and during dispenser, liquid preparation sprays, pulvis dusts, granule spreads fertilizer over the fields, poison bait drops into the performance, the feature that all need to consider apparatus and the facility used, its due effect could be played well, make medicament evenly be distributed in crop or pest surface hand and foot, obtain science, prevent and treat result efficiently.
Controlling object must be familiar with before using agricultural chemicals and grasp and select suitable pesticide species, with reference to books, handbook that various places plant protection department writes, prevent from misapplying agricultural chemicals, reach the ideal effect of dispenser to the ill.
Agricultural chemicals is also the important means that the mankind prevent and treat agricultural damage by disease and insect, chemical pesticide is to ensureing that the increasing both production and income of agricultural plays very important effect, but the use of agricultural chemicals, while Ensuring Food Safety is produced, also bring a series of environment and the social concerns such as residual, pollution.
Agricultural chemicals is the special chemicals of a class, and it can prevent and treat agricultural damage by disease and insect, also can produce harm to people and animals.Therefore, the use of agricultural chemicals, brings benefit to the mankind on the one hand, and also rely the environment according to existence to bring harm to the mankind on the other hand, according to relevant report, agricultural chemicals availability is generally 10%, and about 90% remain in the environment, causes the pollution to environment.A large amount of agricultural chemicals scattered and disappeared evaporate in air, and flow in water body, sedimentation is gathered in soil, pollutes farming animals fishing fruit product, and transfers to human body by the enrichment of food chain, produce harm to human body.Therefore, develop safety, high-efficiency environment friendly, prolongation lasting period, alleviate poisoning, reduce agricultural chemicals novel form preparation that is residual, the range of application that increases agricultural chemicals in the environment and become one of developing direction of pesticide in future formulation.
Aqueous emulsion is as a kind of novel environment friendly formulation, and in the prolongation agricultural chemicals lasting period, contribution is remarkable, but its inner adding ingredient method is different, and on market, existing aqueous emulsion seldom has the formula or composition that add physics stabilizing agent.And the present invention to be mainly physically stable agent with acrylic emulsion coordinate conventional chemical stabilizing agent to make water and milk system more stable, its character has that raw material are nontoxic, the lasting period good, physical and chemical stability is high and the advantage such as good biocompatibility.
But the duration of each product of aqueous emulsion that existing market is sold is relatively short, and cause the frequent medication of peasant and improve constantly dosing, many areas all cause drug-fast generation, and the lasting period extending this medicament becomes problem urgently to be resolved hurrily for this reason.In addition, the Water emulsion used at present is still primary solvent with aromatic hydrocarbon, owing to using a large amount of mineral soil and organic solvent, not only consumes a large amount of fossil resources, also result in very large pressure to environment.Replace after aromatic hydrocarbon solvent with environmentally friendly solvent, not only can improve its stability, extend the lasting period, reduce application times and amount of application, its harmful effect to environment and agricultural product can also be alleviated, thus improve the safety of medication.
For the defect that above existing method for producing aqueous emulsion and Related product exist, the application's object is to develop a kind of high-efficiency environment friendly new type water emulsion products being exclusively used in prevention and elimination of disease and pests, both can solve the safety issue of above aqueous emulsion preparation process, the feature that aqueous emulsion product is exclusive can have been kept again.This aqueous emulsion product, except having the sick worm of prevention and control, crop smothering performance, also by adding synergist, significantly improves drug effect, after using aqueous emulsion product of the present invention, the drug effect lasting period is long, thus decreases and continue to use the pollution of chemical pesticide to environment, is more conducive to reducing the residue of pesticide on crop.And the product being exclusively used in prevention and elimination of disease and pests is easier and Fertilizer combination, mixture is simple, evenly, can obviously shorten man-hour, improves work efficiency, increases drug effect.
Summary of the invention
For solving the blank that current physically stable agent uses in aqueous emulsion, the object of the present invention is to provide the application technology of a kind of acrylic emulsion in aqueous emulsion.
The present invention is achieved through the following technical solutions: a kind of aqueous emulsion containing benzene emulsion, be made up of the component of following percentage by weight: pesticide active ingredient 1%-50%, acrylic emulsion 0.1%-10%, environmentally friendly solvent 1%-30%, surfactant 1%-20%, stabilizing agent 1%-15%, all the other are water.
Described environmentally friendly solvent is the mixing of one or more in ethanol, normal propyl alcohol, isopropyl alcohol, butanols, isobutanol, 1-METHYLPYRROLIDONE, ethylene glycol monoethyl ether, dimethyl sulfoxide (DMSO), propyl acetate, propylene glycol monomethyl ether.
Described surfactant is wooden sodium sulfonate, dodecyl sodium sulfate, lauryl sodium sulfate, lauryl alcohol polyethylene glycol oxide sodium sulphate, sorbitan fatty acid ester, alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, disecoctylmaleate sodium sulfonate, the mixing of one or more in polyol fatty acid ester and ethylene oxide adduct thereof.
Described stabilizing agent is the mixing of one or more in hydrochloric acid, sulfuric acid, acetic acid, urea, polyethylene glycol, phosphoric acid, ethylene glycol, glycerine, sodium salicylate.
Described water is the one in soft running water, soft water, deionized water.
Method for producing aqueous emulsion of the present invention: accurately take pesticide active ingredient, is sufficiently uniformly dissolved with appropriate solvent, adds emulsifier, after mixing, then adds acrylic emulsion in stirred tank, after making its mixing and emulsifying evenly, adds stabilizing agent and supplies water; Enter efficient clipper high speed shear 10-15 minute again, normal temperature cools, and obtains finished product.
The invention provides a kind of lasting period length, low toxicity, environmentally friendly, person poultry safety, to the aqueous emulsion that damage by disease and insect not easily develops immunity to drugs.Said preparation stable performance, easily degrades, and grows tall to the crop pests lasting period, and environmental pollution is very little.Compared with prior art, provide the more eco-friendly pesticidal preparations of one, meet the non-environmental pollution control needs of pest.
Embodiment
In order to understand essence of the present invention better; below in conjunction with embodiment, content of the present invention is described in further detail; content mentioned in embodiment is not limitation of the invention; the following stated is only for explaining the present invention; for not departing from amendment that the present invention's spirit and principle make, replacement or improvement, all belong to the scope of protection of present invention.
Embodiment one: 30% aqueous cyhalofop-butyl emulsion.
1, preparation method
(1) accurately take 96.3% cyhalofop-butyl active compound 31.2g gram, fully dissolve completely with 15 grams of ethylene glycol monoethyl ethers, evenly, add emulsifier castor oil polyoxyethylene ether 2 grams, polyol fatty acid ester 1.5 grams, stand-by.
(2) when 1 stirs, add 5g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 2.5g glycerine is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain 30% aqueous cyhalofop-butyl emulsion that average grain diameter is 0.16 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio difference 0.09%, 0.23%, 0.19% of cyhalofop-butyl.
Embodiment two: 25% lythidathion aqueous emulsion.
1, preparation method
(1) accurately take the former medicine of 85% lythidathion 29.4 grams, fully dissolve completely with 6 grams of 1-METHYLPYRROLIDONEs, evenly, add emulsifier disecoctylmaleate sodium sulfonate 1.4 grams, styryl phenol polyethenoxy ether 2.6 grams, stand-by;
(2) when 1 stirs, add 3g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 2.5g glycerine is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain the 25% lythidathion aqueous emulsion that average grain diameter is 0.13 μm, under cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates obtain condition in 1 day, the resolution ratio of lythidathion is respectively 0.30%, 0.68%, 1.17%.
Embodiment three: 5% Biphenthrin emulsion in water.
1, preparation method
(1) accurately take the former medicine of 98% Biphenthrin 5.1 grams, fully dissolve completely with 5 grams of propylene glycol monomethyl ethers, evenly, add emulsifier alkylphenol polyoxyethylene 2.9 grams, 1.6 grams, alkylphenol-polyethenoxy phosphate sodium, stand-by;
(2) when 1 stirs, add 5.5g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 1.5g acetic acid is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain 5% Biphenthrin emulsion in water that average grain diameter is 0.8 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of Biphenthrin is respectively 0.22%, 0.56%, 0.98%.
Embodiment four: 40% chlorpyrifos aqueous emulsion.
1, preparation method
(1) accurately take the former medicine of 95% chlopyrifos 42.1 grams, fully dissolve completely with 7 grams of 2-butyl acetates, evenly, add emulsifier alkaryl phenol polyethenoxy ether phosphoesterase 30 .9 gram, 3.5 grams, alkylbenzenesulfonate sodium, stand-by;
(2) when 1 stirs, add 5.5g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 5.5g sodium salicylate is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain 40% chlorpyrifos aqueous emulsion that average grain diameter is 0.11 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of chlopyrifos is respectively 0.20%, 0.29%, 1.46%.
Embodiment five: 20% betacyfluthrin aqueous emulsion.
1, preparation method
(1) accurately take the former medicine of 96.8% betacyfluthrin 20.7 grams, fully dissolve completely with 5.5 grams of 2-butyl acetates, evenly, add emulsifier alkylbenzenesulfonate 1.1 grams, styryl phenol polyethenoxy ether 4.3 grams, stand-by.
(2) when 1 stirs, add 5.1g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 3.9g urea is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain the 20% betacyfluthrin aqueous emulsion that average grain diameter is 0.17 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of betacyfluthrin is respectively 0.27%, 0.89%, 1.35%.
Embodiment six: 45% prochloraz aqueous emulsion.
1, preparation method
(1) accurately take the former medicine of 95% Prochloraz 47.4 grams, fully dissolve completely with 6.7 grams of propyl acetates, evenly, add emulsifier alkaryl phenol polyethenoxy ether phosphate 3.7 grams, polyol fatty acid ester 1.3 grams, stand-by.
(2) when 1 stirs, add 3.8g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 1.5g hydrochloric acid, 2.5g polyethylene glycol is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain 45% prochloraz aqueous emulsion that average grain diameter is 0.15 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of Prochloraz is respectively 0.19%, 0.96%, 1.28%.
Embodiment seven: 20% Flusilazole aqueous emulsion.
1, preparation method
(1) accurately take 95% flusilazole 21.1 grams, fully dissolve completely with 7.3 grams of dimethyl sulfoxide (DMSO)s, evenly, add emulsifier alkylphenol polyoxyethylene 1.9 grams, alkylphenol-polyethenoxy phosphate 2.2 grams, stand-by;
(2) when 1 stirs, add 5.9g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 4.5g glycerine is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain the 20% Flusilazole aqueous emulsion that average grain diameter is 0.18 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of Flusilazole is respectively 0.47%, 0.55%, 1.19%.
Embodiment eight: 10% difenoconazole water emulsion.
1, preparation method
(1) accurately take 98% difenoconazole technical material 10.5 grams, fully dissolve completely with 5.1 grams of ethylene glycol monoethyl ethers, evenly, add emulsifier styryl phenol polyethenoxy ether 1.8 grams, alkaryl phenol polyethenoxy ether phosphate 2.6 grams, stand-by;
(2) when 1 stirs, add 7.4g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 1.8g acetic acid is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
(6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain 10% difenoconazole water emulsion that average grain diameter is 0.15 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of Difenoconazole is respectively 0.47%, 0.55%, 1.53%.
Embodiment nine: 15% azoxystrobin water emulsion.
1, preparation method
(1) accurately take the former medicine of 95% Fluoxastrobin 15.8 grams, fully dissolve completely with 5.9 grams of n-butanols, evenly, add emulsifier disecoctylmaleate sodium sulfonate 1.4 grams, alkylphenol-polyethenoxy phosphate 1.6 grams, stand-by;
(2) when 1 stirs, add 9.6g acrylic emulsion, make its mixing and emulsifying even;
(3) when 2 stir, stabilizing agent 6.5g glycerine is added;
(4) when 3 stir, deionized water is mended to 100g;
(5) with efficient clipper high speed shear 10-15 minute;
6) normal temperature cooling, obtains finished product.
2, stability observing experiment
Optical microphotograph Microscopic observation, obtain 15% azoxystrobin water emulsion that average grain diameter is 0.09 μm, under the condition of cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates 24h, the resolution ratio of Fluoxastrobin is respectively 0.52%, 0.55%, 1.27%.
Embodiment ten: field control effectiveness test.
Above-described embodiment prepares aqueous emulsion that example obtains compared with the existing formulations of pesticide without improve stability, also extend the lasting period, decrease application times and amount of application, also reduce its harmful effect to environment and agricultural product, thus improve the safety of medication.
Table 1, field control effectiveness test comparing result
Field control effectiveness test shows, add the aqueous emulsion of acrylic emulsion, after medicine, 15 days damage by disease and insect preventive effects are all more than 95%, be better than contrast aqueous emulsion and do not add more than 85% of acrylic emulsion, add the aqueous emulsion of acrylic emulsion, within after medicine 90 days, still can maintain damage by disease and insect preventive effect more than 90%, be better than contrast aqueous emulsion and do not add more than 80% of acrylic emulsion.
Claims (5)
1. the aqueous emulsion containing benzene emulsion, is characterized in that: be made up of the component of following percentage by weight: pesticide active ingredient 1%-50%, acrylic emulsion 0.1%-10%, environmentally friendly solvent 1%-30%, surfactant 1%-20%, stabilizing agent 1%-15%, all the other are water.
2. a kind of aqueous emulsion containing benzene emulsion according to claim 1, is characterized in that: described environmentally friendly solvent is the mixing of one or more in ethanol, normal propyl alcohol, isopropyl alcohol, butanols, isobutanol, 1-METHYLPYRROLIDONE, ethylene glycol monoethyl ether, dimethyl sulfoxide (DMSO), propyl acetate, propylene glycol monomethyl ether.
3. a kind of aqueous emulsion containing benzene emulsion according to claim 1, it is characterized in that: described surfactant is wooden sodium sulfonate, dodecyl sodium sulfate, lauryl sodium sulfate, lauryl alcohol polyethylene glycol oxide sodium sulphate, sorbitan fatty acid ester, alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, disecoctylmaleate sodium sulfonate, the mixing of one or more in polyol fatty acid ester and ethylene oxide adduct thereof.
4. a kind of aqueous emulsion containing benzene emulsion according to claim 1, is characterized in that: described stabilizing agent is the mixing of one or more in hydrochloric acid, sulfuric acid, acetic acid, urea, polyethylene glycol, phosphoric acid, ethylene glycol, glycerine, sodium salicylate.
5. a kind of aqueous emulsion containing benzene emulsion according to claim 1, is characterized in that: described water is the one in soft running water, soft water, deionized water.
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| CN101233857A (en) * | 2008-01-09 | 2008-08-06 | 武汉大学 | Cyhalothrin aqueous emulsion and low energy emulsification preparation thereof |
| CN101647462A (en) * | 2009-07-10 | 2010-02-17 | 深圳诺普信农化股份有限公司 | Biphenthrin emulsion in water and preparation method thereof |
| CN102258012A (en) * | 2010-05-29 | 2011-11-30 | 郭方全 | Cyhalofop-butyl aqueous emulsion, and preparation method thereof |
| CN102388912A (en) * | 2011-10-19 | 2012-03-28 | 广东中迅农科股份有限公司 | Fosthiazate aqueous emulsion and preparation method thereof |
| CN102422840A (en) * | 2011-11-16 | 2012-04-25 | 南通联农农药制剂研究开发有限公司 | Pesticide seed coating agent composition and preparation method thereof |
| CN103210909A (en) * | 2013-03-24 | 2013-07-24 | 广东中迅农科股份有限公司 | Chromafenozide water emulsion and preparation method thereof |
| CN104145988A (en) * | 2014-06-16 | 2014-11-19 | 山东华阳农药化工集团有限公司 | Lythidathion-containing insecticidal composition |
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2015
- 2015-08-12 CN CN201510494529.8A patent/CN105145549A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233857A (en) * | 2008-01-09 | 2008-08-06 | 武汉大学 | Cyhalothrin aqueous emulsion and low energy emulsification preparation thereof |
| CN101647462A (en) * | 2009-07-10 | 2010-02-17 | 深圳诺普信农化股份有限公司 | Biphenthrin emulsion in water and preparation method thereof |
| CN102258012A (en) * | 2010-05-29 | 2011-11-30 | 郭方全 | Cyhalofop-butyl aqueous emulsion, and preparation method thereof |
| CN102388912A (en) * | 2011-10-19 | 2012-03-28 | 广东中迅农科股份有限公司 | Fosthiazate aqueous emulsion and preparation method thereof |
| CN102422840A (en) * | 2011-11-16 | 2012-04-25 | 南通联农农药制剂研究开发有限公司 | Pesticide seed coating agent composition and preparation method thereof |
| CN103210909A (en) * | 2013-03-24 | 2013-07-24 | 广东中迅农科股份有限公司 | Chromafenozide water emulsion and preparation method thereof |
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Application publication date: 20151216 |