CN1666619A - Biological pesticide and preparation method thereof - Google Patents
Biological pesticide and preparation method thereof Download PDFInfo
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- CN1666619A CN1666619A CN 200510056647 CN200510056647A CN1666619A CN 1666619 A CN1666619 A CN 1666619A CN 200510056647 CN200510056647 CN 200510056647 CN 200510056647 A CN200510056647 A CN 200510056647A CN 1666619 A CN1666619 A CN 1666619A
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- emulsifier
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Abstract
The invention is an agricultural chemical freed of nuisance which is manufactured by the tea cumic acid and organics attracted from Tripterygium wilfordii, belonging to a biological pesticide and its method of manufacture. It is characterized in that the body of Tripterygium wilfordii which are manufactured by cutting, disintegration, riddling, leaching without bacterium and filter for thickening, is fixed with tea cumic acid to prepare agriculture chemical as emulsion, water-emulsion, and tiny-emulsion. The major compounds of said agriculture chemical are that the attraction of Tripterygium wilfordii is under 90 %, and the tea cumic acid is ranged from 0.1-30 %. And it has strong points of easy process, low cost, broad spectrum, promotion on effect, strong sorption, low poison, and low persistent.
Description
The present invention relates to the biopesticide of the withered element of a kind of thunder godvine compatibility tea, the invention still further relates to the method for this agricultural chemicals preparation.
Thunder godvine (Tripterygium wilfordii Hook.F.) is that thunder godvine gives section Thunder God Calamus bejuco for defending, and is distributed in provinces such as Fujian, China south, Jiangxi, Zhejiang, Hubei, Hunan, Guangdong, Taiwan, is precious medicinal plant.The thunder godvine purposes is extremely wide, and its radical center partly is used for medicine, also is the splendid plant of botanical pesticide, and Gen Pi and ground branches and leaves are used to produce biopesticide, and remaining residue can be processed into fertilizer, has very high economic worth.The Shennong's Herbal meaning: the degasification scabies is disturbed, and the desinsection fish gives birth to the mountain valley.The Compendium of Material Medica meaning: root is poison especially.Immersion is as the realgar look, and air exhaustion is smelly.Stain is with desinsection in the garden, and that uses quite reaches, and its leaf is poison also, is as good as with gelsemium elegan.Velamen of Tripterygium wilfordii is the insecticidal materials of China's folk tradition, and crushed material or extract have strong stomach toxicity to multiple agricultural fruit tree pest insects such as cabbage caterpillar, diamond-back moths, can cause food refusal or play anesthetic effect, is widely used insecticide in China river, the one band vegetable garden, Zhejiang.Thunder godvine is developed as biopesticide, can be used for the production of pollution-free vegetable, organic tea, nuisanceless fruit, GAP medicinal material etc., thereby obtain the food of " safety, high-quality, true, controlled ".Through State Intellectual Property Office's patent retrieval, be that the patent of feedstock production biopesticide announces there are 10 with the thunder godvine, wherein authorized 2; Be that the patent that raw material prepares agricultural chemicals separately has 3 with the thunder godvine, be " application of thunder godvine extract preparation in the agriculture and forestry injurious insect control " of Zhejiang Medicine Co's invention, " application of the non-water extract of thunder godvine in the agricultural chemicals preparation " of Lushiji Bio-Engineering Co Ltd, Wuhan's invention and " tripterygium insecticide and the manufacture method thereof " of Nuisanceless Pesticide Research Service Center, Xibei Agroforestry Science and T's development, be raw material with the thunder godvine and have 7 that wherein the compatibility raw material mainly contains kuh-seng with the patent of other material combination, the Chinese pulsatilla, stemonine, the root of langdu, Li Lu, tobacco etc.But with the withered element of tea is that the patent of the thunder godvine biopesticide of compatibility raw material is not appeared in the newspapers.
The objective of the invention is to thunder godvine and the withered element of tea is raw material, and the biopesticide of a kind of low cost, wide spectrum, synergy and natural plant is provided.Another object of the present invention provides the preparation method of this biopesticide.
The present invention adopts aseptic extraction in thunder godvine organism leaching process, extraction solvent is a water, extracts temperature less than 49 ℃, and extraction time was greater than 50 hours, and requirement employing vapor tight tank is airtight and constantly rotate extraction vessel in leaching process, to quicken separating out of extract.
The objective of the invention is to be achieved through the following technical solutions:
1, main component and percentage by weight:
(1) triperygium wilfordii extractive＜90%
(2) tea withered plain 0.1%～30%
2, mechanism of the present invention is: thunder godvine is the insecticidal materials of China's folk tradition, crushed material or extract have strong stomach toxicity to multiple agricultural fruit tree pest insects such as cabbage caterpillar, diamond-back moths, can cause food refusal or play anesthetic effect, the main component that wherein works is wilfordine and triptolide; The active ingredient that works in the withered element of tea is Tea Saponin, and tea is withered to have two effects, the one, play saponification, and improve drug effect, the 2nd, insecticidal action, and have bactericidal action concurrently, it has the effect of Synergistic biocidal desinsection with the thunder rattan.
3, the main characteristic of the present invention:
(1) thunder godvine resource utilization height, the used thunder godvine lixiviate of the present invention raw material realize that complete stool plants utilization, promptly can tripterygium leaf, organs such as stem and root are the lixiviate raw material.
(2) extraction solvent is a water, and aseptic lixiviate adopts vapor tight tank to be rotated lixiviate, and per minute rotation 30-180 changes.
(3) extraction temperature＜49 ℃, and the insecticide patent of Xibei Univ. of Agricultural ﹠ Forest Science ﹠ Technology's public nuisance-free agricultural chemicals research service research center development requires 50-80 ℃.
(4) extraction time is more than 50 hours, and tripterygium insecticide raw material extraction time of Xibei Univ. of Agricultural ﹠ Forest Science ﹠ Technology public nuisance-free agricultural chemicals research service research center development is 6-48 hour.
(5) with triperygium wilfordii extractive and the withered plain compatibility of tea, prepare a kind of biopesticide.
Specific implementation process of the present invention is as follows:
A kind of preparation of biopesticide is characterized in that with thunder godvine (Tripterygium wilfordii Hook.F.) extract and the withered element of tea be raw material, through certain process, can make emulsion, aqueous emulsion, microemulsion.
One, thunder godvine extraction process
The thunder godvine whole plant (leaf, stem and root etc.) of gathering is cut into fragment, dries, be crushed to 60 sieve meshes, water adopts the aseptic extraction of vapor tight tank (water temperature less than 49 ℃, extraction time greater than 50 hours), and constantly rotate vapor tight tank (30～180 times/minute), after filtration, purify, concentrate and get final product.
Two, the preparation of biopesticide
1, the withered element of triperygium wilfordii extractive of Nong Suoing and tea and solvent, emulsifier mix in proportion get final product a kind of biopesticide missible oil.
Thunder godvine is extracted concentrate 5～90%
Tea withered plain 0.1～30%
Solvent 50～75%
Emulsifier 10～20%
Solvent in the emulsifiable concentrate is selected one or more in methyl alcohol, ethanol, isopropyl alcohol, the ethyl acetate for use; Emulsifier is selected one or more mixtures of OPEO, polyoxyethylene nonylphenol ether, calcium dodecyl benzene sulfonate, polyoxyethylene octadecanol phosphate etc. for use.
2, the triperygium wilfordii extractive of Nong Suoing and the withered element of tea and solvent, emulsifier add with emulsion altogether and are in the same place, high-speed stirred at normal temperatures, get final product a kind of biopesticide aqueous emulsion.
Thunder godvine is extracted concentrate 5～90%
Tea withered plain 0.1～30%
Water 30～80%
Solvent 4～25%
Emulsifier 4.0～20%
Co-emulsifier 1.0～15%
Solvent in the aqueous emulsion is selected one or more in ethanol, the ethyl acetate for use; Emulsifier is selected one or more mixtures of alkyl polyglycol ether, alkyl phenyl polyglycol ether, polyoxyethylene sorbitol sugar alcohol acid anhydride ester, polyoxyethylene fatty acid ester etc. for use; Co-emulsifier is selected one or more of alkane alcohols such as butanols, isobutanol, dodecanol-1, tetradecanol-1, octadecanol-1 for use.
3, earlier that emulsifier is water-soluble, under stirring state, extract concentrate and the withered element of tea to wherein dripping thunder godvine, stir 45min～80min at 35～39 ℃ of constant temperature, be cooled to room temperature and can obtain the biopesticide microemulsion.
Thunder godvine is extracted concentrate 5～90%
Tea withered plain 0.1～30%
Water 30～80%
Emulsifier 5～30%
The emulsifier that adopts in the microemulsion has one or more mixtures of benzene diethylstilbestrol APEO, polyethylene phenethyl phenolic ether oleate, xenol APEO, polyoxyethylene nonylphenol ether etc.
Three, example of the present invention
Example 1: take by weighing triperygium wilfordii extractive concentrate 20kg, 20% the withered plain 10kg of tea, fully mix, can prepare and obtain biopesticide missible oil with isopropyl alcohol 35kg, ethanol 25kg, OPEO 10kg.
Example 2: take by weighing triperygium wilfordii extractive concentrate 15kg, 20% the withered plain 8kg of tea,, stir 10min with 4000r/min at normal temperatures, promptly get the biopesticide aqueous emulsion with ethanol 20kg, alkyl polyglycol ether 10kg, isobutanol 5kg, aquae destillata 42kg.
Example 3: styrenated phenol APEO 10kg, biphenyl diethylstilbestrol APEO 10kg and aquae destillata 55kg are mixed, under 38 ℃ of high-speed stirred, be added dropwise to triperygium wilfordii extractive concentrate 15kg, 20% the withered plain 10kg of tea, stir 50min under the constant temperature again, promptly get the biopesticide microemulsion after the cooling.
Claims (5)
1, a kind of biopesticide and preparation method thereof is characterized in that using thunder godvine (Tripterygium wilfordii Hook.F.) extract and the withered plain compatibility of tea, produces a kind of biopesticide.Be biopesticide of the present invention with thunder godvine plant extracts and the withered plain compatibility of tea, through certain process, can make emulsion, aqueous emulsion, microemulsion.
2, biopesticide according to claim 1, be after obtaining plant corpuss such as thunder godvine plant roots, stem, leaf, cut into fragment, dry, be crushed to 60 sieve meshes, water adopts the aseptic extraction of vapor tight tank, extract water temperature less than 49 ℃, extraction time greater than 50 hours, and constantly rotate vapor tight tank, the rotation speed per hour is 30～180 times/minute, after filtration, purify, concentrate, filtered fluid is concentrated into 10% of former liquid measure, and it is standby to obtain the concentrated stoste of thunder godvine extraction.
3, according to claim 1,3 described insecticides, it is characterized in that the withered element of triperygium wilfordii extractive and tea and solvent, emulsifier are mixed with missible oil, the significant percentage example of its each component is:
Thunder godvine is extracted concentrate 5～90%
Tea withered plain 0～30%
Solvent 50～75%
Emulsifier 10～20%
Solvent in the emulsifiable concentrate is selected one or more in methyl alcohol, ethanol, isopropyl alcohol, the ethyl acetate for use; Emulsifier is selected one or more mixtures of OPEO, polyoxyethylene nonylphenol ether, calcium dodecyl benzene sulfonate, polyoxyethylene octadecanol phosphate etc. for use.
The withered element of concentrate, tea and emulsifier, the solvent of aforementioned proportion are evenly promptly got biopesticide missible oil.
4, according to claim 1,2 described insecticides, it is characterized in that the withered element of triperygium wilfordii extractive concentrate and tea can be mixed with aqueous emulsion with water, emulsifier, co-emulsifier, the significant percentage example of its each component is:
Thunder godvine is extracted concentrate 5～90%
Tea withered plain 0～30%
Water 30～80%
Solvent 4～25%
Emulsifier 4.0～20%
Co-emulsifier 1.0～15%
Solvent in the aqueous emulsion is selected one or more in ethanol, the ethyl acetate for use; Emulsifier is selected one or more mixtures of alkyl polyglycol ether, alkyl phenyl polyglycol ether, polyoxyethylene sorbitol sugar alcohol acid anhydride ester, polyoxyethylene fatty acid ester etc. for use; Co-emulsifier is selected one or more of alkane alcohols such as butanols, isobutanol, dodecanol-1, tetradecanol-1, octadecanol-1 for use.
With the concentrate of aforementioned proportion and solvent, emulsifier and altogether emulsion add and be in the same place, high-speed stirred at normal temperatures, get final product the biopesticide aqueous emulsion.
5, according to claim 1,2 described insecticides, it is characterized in that triperygium wilfordii extractive concentrate, the withered element of tea can be mixed with microemulsion with water, emulsifier, the significant percentage example of its each component is:
Thunder godvine is extracted concentrate 5～90%
Tea withered plain 0～30%
Water 30～80%
Emulsifier 5～30%
The emulsifier that adopts in the emulsifier has one or more mixtures of benzene diethylstilbestrol APEO, polyethylene phenethyl phenolic ether oleate, xenol APEO, polyoxyethylene nonylphenol ether etc.
Emulsifier is water-soluble, under stirring condition,, stir 45min～80min at 35～39 ℃ of constant temperature to wherein dripping the withered element of triperygium wilfordii extractive concentrate and tea, be cooled to room temperature and can obtain the biopesticide microemulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510056647 CN1666619A (en) | 2005-04-12 | 2005-04-12 | Biological pesticide and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510056647 CN1666619A (en) | 2005-04-12 | 2005-04-12 | Biological pesticide and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1666619A true CN1666619A (en) | 2005-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510056647 Pending CN1666619A (en) | 2005-04-12 | 2005-04-12 | Biological pesticide and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101288413B (en) * | 2008-05-26 | 2010-12-29 | 浙江省农业科学院 | Tripterygium wilfordii compound pesticides for high effectively preventing and curing tea geometrid |
| CN114651831A (en) * | 2022-04-06 | 2022-06-24 | 山东百士威作物保护有限公司 | Preparation method of biological pesticide |
-
2005
- 2005-04-12 CN CN 200510056647 patent/CN1666619A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101288413B (en) * | 2008-05-26 | 2010-12-29 | 浙江省农业科学院 | Tripterygium wilfordii compound pesticides for high effectively preventing and curing tea geometrid |
| CN114651831A (en) * | 2022-04-06 | 2022-06-24 | 山东百士威作物保护有限公司 | Preparation method of biological pesticide |
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