CN1442059A - Avermectin aerosol and its preparation method - Google Patents
Avermectin aerosol and its preparation method Download PDFInfo
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- CN1442059A CN1442059A CN 03109425 CN03109425A CN1442059A CN 1442059 A CN1442059 A CN 1442059A CN 03109425 CN03109425 CN 03109425 CN 03109425 A CN03109425 A CN 03109425A CN 1442059 A CN1442059 A CN 1442059A
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Abstract
A smoke agent of abamectin for preventing and eliminating the pests of agricultural crops contains abamectin 0.1-10%, surfactant 0.1-15 %, solvent 45-95% and cosolvent 1-30%. After it is sprayed out, its fine particles can be firmly attached onto the leaves and stems of agricultural crops. Its advantages are high adhesion, effect and durability, and low pollution to environment and people.
Description
Technical field
What the present invention relates to is a kind of broad spectrum pesticide, particularly Avermectin aerosol (also claiming thermal fog) and preparation method thereof.
Background technology
Avermectin is a kind of group thiophosphate broad spectrum pesticide, and main feature is: 1. wide spectrum.Effective to various pests.2. efficient.The drug effect of Avermectin is than higher in the present microorganism insecticide.The Avermectin product that domestic manufacturer produces is cream preparation.Cream preparation mainly adopts the lower toluene of boiling point, the preparation of dimethylbenzene equal solvent at home and abroad.In use need convert and spray after a large amount of fresh water form emulsion, this using method, more suitable to short crop.To the crop of higher and dense planting, it is very difficult that if tree is used, and work efficiency is very low, and water smoke runs off on crop seriously in addition, and resistance of rainwater washing against not is so the user is reluctant to prevent and treat with said preparation the insect pest of crop.
Aerosol is studied early abroad, but slower development, and in health and epidemic prevention, several aerosols occurred domestic the 1970s and 1980s in the forest and the rubber extermination of disease and insect pest mostly in its application.Yet do not see both at home and abroad that so far the Avermectin aerosol comes out.The Avermectin aerosol that facts have proved in the past few years is a rising novel formulation.
Summary of the invention
The purpose of this invention is to provide a kind of Avermectin aerosol and preparation method thereof.Avermectin aerosol of the present invention is formulated with high boiling solvent.In use eject superfine droplet (2-5 μ m accounts for more than 80%) with fog machine, drift in air is used to prevent and treat the insect pest of crop in case run into crop and just can be deposited on firmly on crop blade face (just, the back side) and the stem.The present invention has strong ability to resist splash erosion, the drug effect height, and the lasting period is long, saves a large amount of fresh water, and to environment and the little characteristics of operating personnel's pollution and toxic hazard.
The present invention includes following weight forms:
Avermectin 0.1-10%
Surfactant 0.1-15%
Solvent 45-95%
Cosolvent 1-20%
Described Avermectin be (10E, 14E, 16E, 22Z)-(1R, 4S, 5 ' S, 6S, 6 ' R, 8R, 12S, 13S, 20R, 21R, 24S)-6 ' [(S)-and sec-butyl]-21,24-dihydroxy-5 ', 11,13,22-tetramethyl-2-oxygen-3,7,19-trioxa Fourth Ring [15.6.1.1.
4.8O
20.24] 25 carbon-10,14,16,22-tetraene-6-spiral shell-2 '-(5 ', 6 '-dihydro-2 ' H-pyrans)-12-base-2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-2-L-arabinose-own pyrans glycosyl)-3-O-methyl-α-L-arabinose-own pyranoside (i) is as active component.
Described surfactant is a complexed surfactant; Described complexed surfactant is two or more the combination in polyoxyethylene nonylphenol ether (as OP-4, OP-7, OP-10), alkyl benzene calcium sulfonate (as No. 500, farming breast), single oleic acid sorbitan ester (as span-80) or the secondary alkanol APEO (as JFC).
Described solvent is one or more the combination in No. two, aromatic hydrocarbons, No. three (many alkyl-substituted aromatic hydrocarbons, boiling point is more than 200 ℃), o-dichlorohenzene, chlorobenzene, diethylene glycol (DEG), triethylene glycol, propane diols, atoleine, white oil, castor oil or the turpentine oil.
Described cosolvent is methyl-sulfoxide, N, the combination of one or more in dinethylformamide, ethylene glycol or the glycerine.
The present invention can also add known synergist, stabilizing agent or carry out compositely with other effective active composition, can improve the drug effect of Avermectin aerosol and the practicality on the agricultural greatly.
The preparation method of Avermectin aerosol comprises the steps:
Measuring just by composition of raw materials, active component Avermectin, solvent, cosolvent add dissolving under fully stirring, heating in the reactor, temperature remains on below 50 ℃, after treating that former medicine dissolves fully, adding complexed surfactant again continue to stir, is heated to and becomes till the homogeneous transparent homogeneous phase solution, be cooled to room temperature, remove by filter a small amount of residue, filtrate is carried out analyzing and testing, can pack storing after qualified.
Outstanding substantial advantage of the present invention is:
1) has strong ability to resist splash erosion, conventional pesticide preparation missible oil, wetting powder and aqueous suspension agent etc., convert a large amount of water sprays during use, its droplet can only partly deposit on crop, it is a lot of to be lost, meet rain at once and also can be washed away even be deposited on droplet on the crop, fall torrential rain immediately and smoke particle is deposited on the crop and also do not wash away, and when spotting, also can spray.The Avermectin aerosol is formulated with high boiling solvent.In use eject superfine droplet (2-5 μ m accounts for more than 80%) with fog machine, drift in air is used to prevent and treat the insect pest of forest, vegetables and crops in case run into crop and just can be deposited on firmly on crop blade face (just, the back side) and the stem.
2) effect height, not only saving of labor but also save time.Effect is 10 times of conventional spraying, so reduce the dispenser cost greatly.
3) save former medicine, the drug effect height, the lasting period is long.About every mu of spray aerosol 100 grams (content 10-15%), conventional formulation needs the 20-30 gram approximately by active ingredient
4) little to environment and operating personnel's pollution and toxic hazard, conventional atomized water spray is for tall and big dense planting crop, operating personnel are endangered seriously, and soup runs off in a large number in soil, pollute, and spray aerosol, the people carries on the back fog machine and walks the front against the wind, and ejection smog in back is to not influence of people, the smoke particle overwhelming majority is deposited on the crop, and is very little to environmental influence.
5) save a large amount of fresh water.Conventional atomized water spray, as in fruit tree, need converting 200-400Kg fresh water approximately, and spray aerosol water not, every mu only needs spraying preparation 100-200 gram to get final product.This advantage is particularly suitable for mountain area, hilly country and arid area.
Embodiment
Embodiment 1
Composition of raw materials: take by weighing Avermectin 1 gram, No. 500 50 grams of farming breast and JFC 20 grams, No. two 500 grams of solvent aromatic hydrocarbons, triethylene glycol 200 grams, turpentine oil 199 grams, cosolvent N, dinethylformamide 20 grams, glycerine 10 grams.
The preparation method: Avermectin, solvent, cosolvent add in the reactor, abundant stirring, heating for dissolving, temperature remains on below 50 ℃, after treating that former medicine dissolves fully, add complexed surfactant again and continue to stir, keep 50 ℃ till become the homogeneous transparent homogeneous phase solution, be cooled to room temperature, remove by filter the minute quantity residue, filtrate is carried out analyzing and testing, can pack storing after qualified.
Embodiment 2
Composition of raw materials: take by weighing Avermectin 10 grams, No. 500 50 grams of farming breast, span-80 5 grams and JFC 20 grams, No. two 400 grams of solvent aromatic hydrocarbons, triethylene glycol 195 grams, o-dichlorohenzene 100 grams, turpentine oil 190 grams, cosolvent N, dinethylformamide 10 grams, methyl-sulfoxide 10 grams, ethylene glycol 10 grams.
The preparation method is with embodiment 1.
Embodiment 3
Composition of raw materials: take by weighing Avermectin 5 grams, No. 500 20 grams of farming breast, agricultural emulsifier NO 10 grams and JFC 10 grams, No. two 405 grams of solvent aromatic hydrocarbons, o-dichlorohenzene 300 grams, white oil 200 grams, cosolvent N, dinethylformamide 50 grams.
The preparation method is with embodiment 1.
Get Avermectin aerosol 1500 grams of above-mentioned preparation, the fog machine that uses our company to produce, the test of western forest zone prevents and treats damage by forest-insects in Sichuan Province, sprayed 1 hectare in 10 minutes, eject superfine droplet (2-5 μ m accounts for more than 80%) at every turn, on the blade face and stem of drift deposition trees, the effect of preventing and treating damage by forest-insects reaches more than 80% in air.
Claims (8)
1. Avermectin aerosol is characterized in that it comprises that following weight forms:
Avermectin 0.1-10%
Surfactant 0.1-15%
Solvent 45-95%
Cosolvent 1-20%
2, Avermectin aerosol according to claim 1 is characterized in that described Avermectin is (10E, 14E, 16E, 22Z)-(1R, 4S, 5 ' S, 6S, 6 ' R, 8R, 12S, 13S, 20R, 21R, 24S)-6 ' [(S)-and sec-butyl]-21,24-dihydroxy-5 ', 11,13,22-tetramethyl-2-oxygen-3,7,19-trioxa Fourth Ring [15.6.1.1.
4.8O
20.24] 25 carbon-10,14,16,22-tetraene-6-spiral shell-2 '-(5 ', 6 '-dihydro-2 ' H-pyrans)-12-base-2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-2-L-arabinose-own pyrans glycosyl)-3-O-methyl-α-L-arabinose-own pyranoside (i).
3. Avermectin aerosol according to claim 1 is characterized in that described surfactant is a complexed surfactant.
4, Avermectin aerosol according to claim 3 is characterized in that described complexed surfactant is two or more the combination in polyoxyethylene nonylphenol ether, calcium dodecyl benzene sulfonate, single oleic acid sorbitan ester or the secondary alkanol APEO.
4, Avermectin aerosol according to claim 4 is characterized in that described complexed surfactant is OP-4, OP-7, OP-10, No. 500, farming breast, span-80 or JFC.
5, Avermectin aerosol according to claim 1 is characterized in that described solvent is one or more the combination in No. two, aromatic hydrocarbons, No. three, o-dichlorohenzene, chlorobenzene, diethylene glycol (DEG), triethylene glycol, propane diols, atoleine, white oil, castor oil or the turpentine oil.
6. Avermectin aerosol according to claim 1 is characterized in that described cosolvent is methyl-sulfoxide, N, the combination of one or more in dinethylformamide, ethylene glycol or the glycerine.
7. the preparation method of the described Avermectin aerosol of claim 1 is characterized in that it comprises the steps:
Measuring just by composition of raw materials, active component Avermectin, solvent, cosolvent add dissolving under fully stirring, heating in the reactor, temperature remains on below 50 ℃, after treating that former medicine dissolves fully, add complexed surfactant again and continue to stir, keep 50 ℃ till become the homogeneous transparent homogeneous phase solution, be cooled to room temperature, remove by filter the minute quantity residue, filtrate is carried out analyzing and testing, can pack storing after qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109425 CN1442059A (en) | 2003-04-10 | 2003-04-10 | Avermectin aerosol and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109425 CN1442059A (en) | 2003-04-10 | 2003-04-10 | Avermectin aerosol and its preparation method |
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| CN1442059A true CN1442059A (en) | 2003-09-17 |
Family
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| CN 03109425 Pending CN1442059A (en) | 2003-04-10 | 2003-04-10 | Avermectin aerosol and its preparation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303884C (en) * | 2003-11-27 | 2007-03-14 | 南开大学 | Bacillus thuringiensis Comor subspecies aerosol and its preparation method |
| CN102524312A (en) * | 2012-01-15 | 2012-07-04 | 陈谐晷 | Natural pyrethrin hot smoke agent and use method thereof |
| CN101779625B (en) * | 2010-02-09 | 2013-03-13 | 安徽省农业科学院植物保护研究所 | Functional smoke agent for hot fogging machine and preparation method thereof |
| WO2015114590A1 (en) * | 2014-02-03 | 2015-08-06 | Pacific Agrosciencies S.A.I.C. | Liquid non-aqueous pesticide composition, method for preparing the liquid non-aqueous pesticide composition and method for eliminating insects, acarids and nematodes in cultures |
| CN111978137A (en) * | 2020-08-18 | 2020-11-24 | 四川烟牛科技有限公司 | Aqueous color smoke agent for aviation and preparation method thereof |
| CN115971016A (en) * | 2022-12-20 | 2023-04-18 | 河南农业大学 | Method for enhancing liquid drop inclusion deposition without assistance of high-pressure electrospray equipment |
-
2003
- 2003-04-10 CN CN 03109425 patent/CN1442059A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303884C (en) * | 2003-11-27 | 2007-03-14 | 南开大学 | Bacillus thuringiensis Comor subspecies aerosol and its preparation method |
| CN101779625B (en) * | 2010-02-09 | 2013-03-13 | 安徽省农业科学院植物保护研究所 | Functional smoke agent for hot fogging machine and preparation method thereof |
| CN102524312A (en) * | 2012-01-15 | 2012-07-04 | 陈谐晷 | Natural pyrethrin hot smoke agent and use method thereof |
| WO2015114590A1 (en) * | 2014-02-03 | 2015-08-06 | Pacific Agrosciencies S.A.I.C. | Liquid non-aqueous pesticide composition, method for preparing the liquid non-aqueous pesticide composition and method for eliminating insects, acarids and nematodes in cultures |
| CN111978137A (en) * | 2020-08-18 | 2020-11-24 | 四川烟牛科技有限公司 | Aqueous color smoke agent for aviation and preparation method thereof |
| CN111978137B (en) * | 2020-08-18 | 2022-06-07 | 四川烟牛科技有限公司 | Aqueous color smoke agent for aviation and preparation method thereof |
| CN115971016A (en) * | 2022-12-20 | 2023-04-18 | 河南农业大学 | Method for enhancing liquid drop inclusion deposition without assistance of high-pressure electrospray equipment |
| CN115971016B (en) * | 2022-12-20 | 2023-08-18 | 河南农业大学 | Method for enhancing liquid drop package and deposition without assistance of high-voltage spraying equipment |
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