CN1257655A - Methomyl and cyfluthrin microemulsion as insecticide-miticide - Google Patents
Methomyl and cyfluthrin microemulsion as insecticide-miticide Download PDFInfo
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- CN1257655A CN1257655A CN 99126377 CN99126377A CN1257655A CN 1257655 A CN1257655 A CN 1257655A CN 99126377 CN99126377 CN 99126377 CN 99126377 A CN99126377 A CN 99126377A CN 1257655 A CN1257655 A CN 1257655A
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- China
- Prior art keywords
- methomyl
- cyhalothrin
- microemulsion
- insecticide
- miticide
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Abstract
A microemulsified insecticide-miticide for preventing and eliminating more pests including boll worm, pear-wood louse, peach borer, aphis, pink baolworm, corn borer, leaf roller, etc of fruit tree, vegetable, cotton, wheat, rice, corn, etc is prepared from methomyl (0.1-40 wt%), cyfluthrin (0.01-20 wt.%), emulsifier (6-25 wt.%), cosolvent (1-15 wt.%), stabilizer (0.1-1.0 wt.%) and water or deionized water. Its advantages are high effect, lower toxicity and low dosage.
Description
The present invention relates to a kind of control fruit, vegetables, cotton, wheat, paddy rice, Americal rice leaf miner on the crops such as corn, cotton bollworm, pear sucker, pink bollworm, peach fruit borer, diamond-back moth, leaf miner, aphid, beet armyworm, leaf roller, corn borer, cabbage caterpillar, two spotted spider mite, Methomyl of tetranychid etc. and cyhalothrin (time) binary built microemulsion as insecticide-miticide, by Methomyl, cyhalothrin (time), emulsifier, cosolvent, stabilizing agent and water or deionized water are formulated, utilized state-of-the-art nanometer emulsified technology, had efficient, reduce toxicity, characteristics such as dosage is few.
At present, the various insects, mite class etc. that are used for crops such as fruit tree, wheat, paddy rice, peanut, cotton, vegetables are methomyl milk oil preparation and cyhalothrin emulsifiable concentrate more effectively, and control efficiency is good, but cost is too high, and permeability is relatively poor, and residual effect is shorter.
The objective of the invention is to overcome the deficiency of above-mentioned existing procucts, and provide that the former dose of a kind of usefulness is few, with low cost, drift is little, permeability is strong during dispenser microemulsion as insecticide-miticide.
Purpose of the present invention can realize by following measure:
In reactor, add successively:
(a) weight concentration is the Methomyl of 0.1-40%;
(b) weight concentration is the cyhalothrin of 0.01-20%;
(c) weight concentration is the emulsifier of 6-25%;
(d) weight concentration is the cosolvent of 1-15%:
(e) weight concentration is the stabilizing agent of 0.1-1.0%;
The rest is water or deionized water.
Purpose of the present invention can also realize by following measure:
Adding a certain amount of cosolvent in Methomyl and the cyhalothrin, be heated to 50-65 ℃, in (the rotating speed 200-400 rev/min) process of stirring, add emulsifier, temperature remains on 70-80 ℃, adds hot water or hot deionized water (temperature 90-96 ℃) then, stirs 30-60 minute, add surplus cosolvent and stabilizing agent again, emulsion is converted into clear solution automatically in cooling procedure then, is chilled to about 30 ℃, leaves standstill then, filters, packs promptly to get agricultural chemicals of the present invention.
(1) molecular structure of the Methomyl that uses among the present invention is:
Methomyl (methomyl) is by producing 2-chloroethene aldoxime behind the logical chlorine of acetaldoxime, make 2 methyl thioacetaldehyde oxime (MHTA) with the methyl mercaptan reaction again, making Methomyl with the methyl isocyanate reaction subsequently.
Also can make 2-methylmercaptan ethyl oxime, make MHTA with azanol reaction again, make product with the methyl isocyanate reaction again by acetonitrile and methyl mercaptan reaction.
(2) molecular structure of the cyhalothrin that uses among the present invention (cyhalothrin) is:
Cyhalothrin can be by 3,3-dimethyl pentene-5-acetoacetic ester (pentenoate) carries out condensation reaction with trichorotrifluoroethane and gets 7,7,7-three fluoro-6,6-two chloro-4-chloro-3,3-dimethyl-g acetoacetic ester (condensation product), again with butyl alcohol-tert potassium carry out cyclization get (2,2-two chloro-3,3,3-trifluoropropyl alkyl)-2,2-dimethyl cyclopropane carboxylic acid ester (cyclocomplex).Its dehydrochlorination hydrolysis is got cyclopropyl carboxylic acid, again with thionyl chloride react trifluoro chrysanthemum acyl chlorides, the last reaction with 3-phenoxy group benzylalcohol (benzylalcohol) makes.
Used emulsifier is to be formed according to 80/15/5 ratio is composite by anion surfactant, non-ionic surface active agent and water or deionized water among the present invention.
Used cosolvent is by monomer or composite compositions the such as cyclohexanone, cyclohexane, acetone, methyl alcohol, ethanol, ethylene glycol monobutyl ether, DMF, pyrrolidones among the present invention.
Used stabilizing agent is urea, beta-schardinger dextrin-, glycerine, polyethylene glycol etc. among the present invention.
The present invention give further instruction in order to illustrate better below by embodiment:
Embodiment 1:
In 2000 milliliters of there-necked flasks that thermometer (or electric thermo-couple temperature instrument) and agitator are housed, adding purity is 90% Methomyl 114 grams, 90% time 9 gram, add 40 gram cosolvents, be heated to 50-65 ℃, stirred 10 minutes, after treating dissolving evenly, begin to drip emulsifier, totally 265 grams added in 20-30 minute.Continue to stir (temperature 80-90 ℃) 10-20 minute, and dripped 95-98 ℃ of hot water or hot deionized water 530 grams then, 32 gram cosolvents and the 10 gram stabilizing agents of adding during to 30-40 ℃ to be cooled, this moment, emulsion was automatically changeb to transparent water microemulsion, leave standstill, filter, be weighed as 1000 grams, bottling.
Embodiment 2:
In 2000 milliliters of there-necked flasks that thermometer (or electric thermo-couple temperature instrument) and agitator are housed, adding purity is 90% Methomyl 94 grams, 90% time 16.7 gram, add 35 gram cosolvents, be heated to 50-65 ℃, stirred 10 minutes, after treating dissolving evenly, begin to drip emulsifier, totally 250 grams added in 20-30 minute.Continue to stir (temperature 80-90 ℃) 10-20 minute, and dripped 95-98 ℃ of hot water or hot deionized water 530 grams then, 32 gram cosolvents and the 10 gram stabilizing agents of adding during to 30-40 ℃ to be cooled, this moment, emulsion was automatically changeb to transparent water microemulsion, leave standstill, filter, be weighed as 1000 grams, bottling.
Embodiment 3:
In 2000 milliliters of there-necked flasks that thermometer (or electric thermo-couple temperature instrument) and agitator are housed, adding purity is 90% Methomyl 122 grams, 90% time 11 gram, add 50 gram cosolvents, be heated to 50-65 ℃, stirred 10 minutes, after treating dissolving evenly, begin to drip emulsifier, totally 280 grams added in 20-30 minute.Continue to stir (temperature 80-90 ℃) 10-20 minute, and dripped 95-98 ℃ of hot water or hot deionized water 500 grams then, 30 gram cosolvents and the 8 gram stabilizing agents of adding during to 30-40 ℃ to be cooled, this moment, emulsion was automatically changeb to transparent water microemulsion, leave standstill, filter, be weighed as 1000 grams, bottling.
The effect of pesticide control diamond-back moth of the present invention is as shown in table 1:
Table 1
| Handle | Liquor strength (ppm) | The investigation borer population | Preventive effect (%) | Average preventive effect (%) |
| Embodiment 1 | ????1000 | ????1000 | ????98.6 | ?????93.9 |
| ????500 | ????1000 | ????93.0 | ||
| ????333 | ????1000 | ????90.2 | ||
| Embodiment 2 | ????1000 | ????1000 | ????97.2 | ?????93.5 |
| ????500 | ????1000 | ????92.4 | ||
| ????333 | ????1000 | ????90.9 | ||
| Embodiment 2 | ????1000 | ????1000 | ????99.0 | ?????96.1 |
| ????500 | ????1000 | ????96.5 | ||
| ????333 | ????1000 | ????92.8 | ||
| 2.5% time missible oil | ????1000 | ????1000 | ????94.2 | ?????90.8 |
| ????500 | ????1000 | ????91.8 | ||
| ????333 | ????1000 | ????86.3 | ||
| 20% methomyl milk oil | ????1000 | ????1000 | ????96.1 | ?????89.3 |
| ????667 | ????1000 | ????90.7 | ||
| ????500 | ????1000 | ????81.0 |
The effect of pesticide control European red mite of the present invention is as shown in table 2:
Table 2
| Handle | Liquor strength (ppm) | Average relative control effect (%) | ||
| After 1 day | After 10 days | After 20 days | ||
| Embodiment 1 | ????500 | ????91.1 | ??98.4 | ??85.8 |
| Embodiment 2 | ????500 | ????90.6 | ??95.2 | ??81.2 |
| Embodiment 3 | ????500 | ????93.0 | ??99.2 | ??88.7 |
| 2.5% time missible oil | ????667 | ????90.9 | ??95.7 | ??86.9 |
| Remarks | In one month, quantum of rainfall adds up 212 millimeters after the medication | |||
Methomyl of the present invention is compared with existing similar agricultural chemicals with chlorine flucythrinate binary built micro emulsion desinsection acaricide and is had the following advantages:
1, greatly reduce toxicity, use saferly, environmental pollution is few;
But 2 pest controls, mite class etc.;
3, interfacial tension ultralow (＜0.01dyn/cm), the low concentration high-drug-effect;
4, the resistant insects such as diamondback moth, pear sucker, bollworm also there is good preventive and therapeutic effect;
5, cost is low, can alleviate peasant's burden;
6, formulation is advanced, take water as solvent, and storing safety;
7, can substitute the Methomyl of at present use and the various formulations of cyhalothrin fully.
Claims (5)
1, a kind of Methomyl and cyhalothrin (time) binary built microemulsion as insecticide-miticide of efficient, low toxicity wherein contain Methomyl, cyhalothrin, emulsifier, cosolvent, stabilizing agent and water or deionized water, it is characterized in that:
(a) weight concentration is the Methomyl of 0.1-40%;
(b) weight concentration is the cyhalothrin of 0.01-20%;
(c) weight concentration is the emulsifier of 6-25%;
(d) weight concentration is the cosolvent of 1-15%;
(e) weight concentration is the stabilizing agent of 0.1-1.0%;
Surplus is water or deionized water.
2, require described efficient according to right 1, the Methomyl of low toxicity and cyhalothrin (time) binary built microemulsion as insecticide-miticide, adopted the manufacturing technology of o/w microemulsion, it is characterized in that adding a certain amount of cosolvent in Methomyl and the cyhalothrin, be heated to 50-65 ℃, add emulsifier while stirring after the dissolving evenly, temperature remains on 70-80 ℃, add hot water or hot deionized water (temperature 95-98 ℃) then, stirred 30-60 minute, add the surplus cosolvent again, stabilizing agent, emulsion is converted into clear solution automatically in cooling procedure then, is chilled to about 30 ℃, leaves standstill then, filter, packing.
3, require described Methomyl and cyhalothrin (time) binary built microemulsion as insecticide-miticide according to right 1, used emulsifier is made up of according to 80/15/5 anionic species surfactant, nonionic class surfactant, water when making microemulsion, and wherein the anionic species surfactant is neopelex, fatty alcohol polyoxy ethyl ether sodium sulphate, fatty alcohol polyoxy ethyl ether sodium phosphate, alkyl phenol polyoxy ethyl ether sodium sulphate, alkyl phenol polyoxy ethyl ether sodium phosphate, farming breast 600
#Get sulfuric acid and phosphate, farming breast 2000
#Deng; Non-ionic surface active agent is a farming breast 100
#, farming breast 600
#, farming breast 1600
#, farming breast 33
#With 34
#Deng.
4, require described Methomyl and cyhalothrin (time) binary built microemulsion as insecticide-miticide according to right 1, used cosolvent is by monomers such as cyclohexanone, pure ethers such as butyl glycol ether, propylene glycol monomethyl ether, propylene-glycol ethyl ether etc., DMF, N-Methyl pyrrolidone in the manufacture process.
5, require described Methomyl and cyhalothrin (time) binary built microemulsion as insecticide-miticide according to right 1, used stabilizing agent is monomer or mixtures such as glycerine, polyethylene glycol (20-400), cavitation compound in the manufacture process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126377 CN1257655A (en) | 1999-12-17 | 1999-12-17 | Methomyl and cyfluthrin microemulsion as insecticide-miticide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126377 CN1257655A (en) | 1999-12-17 | 1999-12-17 | Methomyl and cyfluthrin microemulsion as insecticide-miticide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1257655A true CN1257655A (en) | 2000-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99126377 Pending CN1257655A (en) | 1999-12-17 | 1999-12-17 | Methomyl and cyfluthrin microemulsion as insecticide-miticide |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100490643C (en) * | 2004-11-10 | 2009-05-27 | 中国农业科学院植物保护研究所 | Farm chemical microemulsifying assistant composition |
| CN101455194A (en) * | 2007-12-10 | 2009-06-17 | S.C.约翰逊父子公司 | Transparent aqueous pesticide combination |
| CN102113496A (en) * | 2010-01-03 | 2011-07-06 | 青岛海利尔药业有限公司 | Bactericidal composition containing dicyclanil and methomyl |
| CN102742586A (en) * | 2012-06-20 | 2012-10-24 | 董志平 | New purposes of methomyl for control of athetis lepigone |
| CN104272103A (en) * | 2012-03-08 | 2015-01-07 | 陶氏益农公司 | Organic colloid-stabilized emulsion for controlling pesticide spray drift |
| CN104529847A (en) * | 2014-12-25 | 2015-04-22 | 湖北沙隆达股份有限公司 | Method for producing methomyl |
| CN104529846A (en) * | 2014-12-25 | 2015-04-22 | 湖北沙隆达股份有限公司 | Method for increasing yield of produced methomyl |
| KR102377395B1 (en) * | 2021-11-05 | 2022-03-22 | 주식회사 에스비티제약 | Insecticide and Controlling method of insect pest |
-
1999
- 1999-12-17 CN CN 99126377 patent/CN1257655A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100490643C (en) * | 2004-11-10 | 2009-05-27 | 中国农业科学院植物保护研究所 | Farm chemical microemulsifying assistant composition |
| CN101455194A (en) * | 2007-12-10 | 2009-06-17 | S.C.约翰逊父子公司 | Transparent aqueous pesticide combination |
| WO2009074114A1 (en) * | 2007-12-10 | 2009-06-18 | S.C. Johnson & Son, Inc. | Transparent water-based pesticide composition |
| CN102113496A (en) * | 2010-01-03 | 2011-07-06 | 青岛海利尔药业有限公司 | Bactericidal composition containing dicyclanil and methomyl |
| CN104272103A (en) * | 2012-03-08 | 2015-01-07 | 陶氏益农公司 | Organic colloid-stabilized emulsion for controlling pesticide spray drift |
| CN102742586A (en) * | 2012-06-20 | 2012-10-24 | 董志平 | New purposes of methomyl for control of athetis lepigone |
| CN102742586B (en) * | 2012-06-20 | 2013-09-04 | 董志平 | New purposes of methomyl for control of athetis lepigone |
| CN104529847A (en) * | 2014-12-25 | 2015-04-22 | 湖北沙隆达股份有限公司 | Method for producing methomyl |
| CN104529846A (en) * | 2014-12-25 | 2015-04-22 | 湖北沙隆达股份有限公司 | Method for increasing yield of produced methomyl |
| KR102377395B1 (en) * | 2021-11-05 | 2022-03-22 | 주식회사 에스비티제약 | Insecticide and Controlling method of insect pest |
| WO2023080358A1 (en) * | 2021-11-05 | 2023-05-11 | 주식회사 에스비티제약 | Pesticide and pest control method using same |
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| WD01 | Invention patent application deemed withdrawn after publication |