CN101518267B - Aqueous pesticide solution compounded by silver chain extract and tea saponin and method for preparing same - Google Patents
Aqueous pesticide solution compounded by silver chain extract and tea saponin and method for preparing same Download PDFInfo
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- CN101518267B CN101518267B CN 200910048734 CN200910048734A CN101518267B CN 101518267 B CN101518267 B CN 101518267B CN 200910048734 CN200910048734 CN 200910048734 CN 200910048734 A CN200910048734 A CN 200910048734A CN 101518267 B CN101518267 B CN 101518267B
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- tea saponin
- locust
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Abstract
The invention relates to an aqueous pesticide solution compounded by silver chain extract and tea saponin and a method for preparing the same in the technical field of pesticides. The aqueous pesticide solution comprises the following compositions in percentage by weight: 1.3 to 1.7 percent of silver chain extract, 0.3 to 0.7 percent of tea saponin and the balance of distilled water; the method for preparing the aqueous pesticide solution comprises the following steps that: dry silver chain powders are selected and added with ethanol, the mixture is dipped, extracted and filtered; a filtrate is combined, decompressed and concentrated to paste so as to obtain stem leaf extract of the silver chain; the stem leaf extract of the silver chain is added with the distilled water which has the sameweight as the dry silver chain powder; the mixture is vibrated and suspended; a suspension solution is filtered; the filtrate is condensed to dryness so as to obtain the silver chain extract; and the silver chain extract and the tea saponin are mixed in percentage by weight and dissolved by the distilled water to obtain the aqueous pesticide solution compounded by the silver chain extract and the tea saponin. The aqueous pesticide solution utilizes natural innoxious plant material, namely the silver chain, and a natural synergistic agent, namely the tea saponin, strengthens the application ef fect of a botanical fungicide, reduces pollution brought by chemical pesticides and is easy to popularize and apply.
Description
Technical field
The present invention relates to aqua of a kind of technical field of pesticide and preparation method thereof, specifically composite aqueous pesticide solution of a kind of locust tree extract and Tea Saponin and preparation method thereof.
Background technology
Powdery mildew of cucumber is a kind of short incubation period, the popular fast leaf diseases that is caused by Ascomycotina Erysiphales monofilament shell powdery mildew (Sphaerothecafuligine).Main this disease of chemical pesticide control that adopts in production, chemical pesticide used has topsin, triadimefon, carbendazim, fast Poly etc.But powdery mildew has almost produced pesticide resistance simultaneously to above-mentioned several series bactericidal agents at present, and the easy high residue of above-mentioned chemical pesticide, and easily environment works the mischief.
Locust tree (Robinia pseudoacacia Linnl) is the perennial deciduous tree of pulse family robinia, worldwide extensively distributes.Approximately 20 kinds, the robinia plant whole world, China introduces 2 kinds of cultivations, and wherein a kind is medicinal.The root of locust tree, bark and Hua Junke are used as medicine, in blood etc. under medical its treatment hemoptysis, haematemesis, large intestine.In the eighties, the chemical composition of locust tree has been carried out a large amount of research abroad, found that its active component has robinin, agglutinin, Quercetin and multiple types flavonoid substance etc., domestic research is relatively less.Tea Saponin (TeaSaponin, Ts) claims again tea saponin, is a kind of natural nonionic surface active agent of function admirable, is also a kind of extremely promising environmental protection type agricultural chemical synergist.Tea Saponin and agriculture chemical compounding use, and can improve the physicochemical property of liquid, reduce the consumption of former medicine, and the toxicity of medicine is reduced, and are particularly conducive to the development that delays the germ resistance.At present, Tea Saponin is more to the synergistic effect research of chemical pesticide, can improve the control efficiency of ageratochromene, desinsection list, Methomyl, Cyhalothrin, hexythiazox and pyridaben and Rogor, but Tea Saponin is less to the research of the synergistic effect of botanical pesticide.
Find through the literature search to prior art, Dong Daoqing, Chen Jianming, Yu Xiao equality have delivered " synergistic effect of Tea Saponin to thunder godvine EC tea geometrid larvae " the 228th～233 page of " tea science " the 28 3rd phase in 2005, mention in literary composition, the synergistic effect of Tea Saponin to botanical pesticide thunder godvine EC tea chi pot larva, the synergistic effect of Tea Saponin to plant insecticide used in this research, and Tea Saponin still requires study to the synergistic effect of botanical fungicide; Chinese patent CN200710045894.6 (publication number: CN101147499, the open date: 2008.03.26) described a kind of locust tree extract and prepared the method for controlling the powdery mildew of cucumber aqua.Because single bactericide preventive effect is undesirable, need dark extraction to be purified to certain purity and just can reach the expection preventive effect, therefore be difficult to form large-scale production.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, composite aqueous pesticide solution of a kind of locust tree extract and Tea Saponin and preparation method thereof is provided.The present invention utilizes vegetable material locust tree and the natural synergic agent Tea Saponin of Nantural non-toxic, has strengthened the application effect of botanical fungicide, has reduced the pollution that chemical pesticide brings, and has been easy to apply.
The present invention is achieved by the following technical solutions:
A kind of locust tree extract involved in the present invention and the composite aqueous pesticide solution of Tea Saponin, component and percentage by weight are: locust tree extract 1.3%-1.7%, Tea Saponin 0.3%-0.7%, surplus is distilled water.
The preparation method of the aqueous pesticide solution that locust tree extract involved in the present invention and Tea Saponin are composite comprises the steps:
Step 1 is got dry locust tree powder, adds ethanol, and dipping extracts, and merging filtrate after filtering is evaporated to paste, gets locust stems and leaves medicinal extract;
Step 2 adds the distilled water with dry locust tree powder identical weight in the locust stems and leaves medicinal extract, and vibration suspends, and filtering suspension liquid is concentrated into filtrate dried, obtains the locust tree extract;
Step 3 is mixed locust tree extract and Tea Saponin by weight percentage, with the distilled water dissolving, obtains the composite aqueous pesticide solution of locust tree extract and Tea Saponin.
In step 1, described volume grade of alcohol is 15%, and addition is 10-30 times of locust tree powder weight.
In step 1, described dipping extracts and is specially, and dipping extracted 12-24 hour under 15 ℃-35 ℃.
The present invention has following beneficial effect: the present invention is locust tree extract and Tea Saponin rational mixture, makes the medicament dosage reduce, and drug effect improves, and can extend the control time to powdery mildew of cucumber, and the exploitation of natural bactericidal agent is had certain synergistic effect; Environmental pollution of the present invention is little, has nuisanceless and without the characteristics of residual hazard, has effectively avoided the harm of chemical pesticide.
Embodiment
The invention will be further described for following instance.The present embodiment is implemented under take technical solution of the present invention as prerequisite, has provided detailed embodiment and process, but protection scope of the present invention is not limited to following embodiment.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.
Embodiment 1
Composite each composition weight proportioning of aqueous pesticide solution of locust tree extract and Tea Saponin is: locust tree extract 1.3%, and Tea Saponin 0.7%, surplus is distilled water.
Take dry locust tree powder, adding 10 times of volume fractions to the locust tree powder weight is that 15% ethanol is as extractant, under 15 ℃ of conditions, dipping extracted 12 hours, merging filtrate after filtering is evaporated to driedly, uses the distilled water filtration after supersonic oscillations suspend that equates with the locust stems and leaves powder quality, filtrate is concentrated into to do namely gets the locust tree extract, then be mixed in proportion with Tea Saponin, with the distilled water dissolving, be mixed with the composite aqueous pesticide solution of locust tree extract and Tea Saponin.
Adopt indoor pot experiment to carry out indoor pharmacodynamic test to powdery mildew of cucumber, when rough leaf is just launched, with laryngeal spray, the spraying that true leaf carries out this aqueous pesticide solution is processed, inoculate conidial suspension after 24h, blank is set, cultivates in culturing room after processing, condition of culture is that 16h illumination 8h is alternately dark, during illumination, temperature is 25 ℃, and when dark, temperature is 18 ℃.Formulate grade scale investigation occurring degree according to onset area after 9d, calculate preventive effect.The preventive effect that draws powdery mildew of cucumber by test is 75.95%.
Embodiment 2
Composite each composition weight proportioning of aqueous pesticide solution of locust tree extract and Tea Saponin is: locust tree extract 1.5%, and Tea Saponin 0.5%, surplus is distilled water.
Take dry locust tree powder, adding 20 times of volume fractions to the locust tree powder weight is that 15% ethanol is as extractant, under 25 ℃ of conditions, dipping extracted 18 hours, merging filtrate after filtering is evaporated to driedly, uses the distilled water filtration after supersonic oscillations suspend that equates with the locust stems and leaves powder quality, filtrate is concentrated into to do namely gets the locust tree extract, then be mixed in proportion with Tea Saponin, with the distilled water dissolving, be mixed with the composite aqueous pesticide solution of locust tree extract and Tea Saponin.
Adopt indoor pot experiment to carry out indoor pharmacodynamic test to powdery mildew of cucumber, when rough leaf is just launched, with laryngeal spray, the spraying that true leaf carries out this aqueous pesticide solution is processed, inoculate conidial suspension after 24h, blank is set, cultivates in culturing room after processing, condition of culture is that 16h illumination 8h is alternately dark, during illumination, temperature is 25 ℃, and when dark, temperature is 18 ℃.Formulate grade scale investigation occurring degree according to onset area after 9d, calculate preventive effect.The preventive effect that draws powdery mildew of cucumber by test is 88.78%.
Embodiment 3
Composite each composition weight proportioning of aqueous pesticide solution of locust tree extract and Tea Saponin is: locust tree extract 1.7%, and Tea Saponin 0.3%, surplus is distilled water.
Take dry locust tree powder, adding 30 times of volume fractions to the locust tree powder weight is that 15% ethanol is as extractant, under 35 ℃ of conditions, dipping extracted 24 hours, merging filtrate after filtering is evaporated to driedly, uses the distilled water filtration after supersonic oscillations suspend that equates with the locust stems and leaves powder quality, filtrate is concentrated into to do namely gets the locust tree extract, then be mixed in proportion with Tea Saponin, with the distilled water dissolving, be mixed with the composite aqueous pesticide solution of locust tree extract and Tea Saponin.
Adopt indoor pot experiment to carry out indoor pharmacodynamic test to powdery mildew of cucumber, when rough leaf is just launched, with laryngeal spray, the spraying that true leaf carries out this aqueous pesticide solution is processed, inoculate conidial suspension after 24h, blank is set, cultivates in culturing room after processing, condition of culture is that 16h illumination 8h is alternately dark, during illumination, temperature is 25 ℃, and when dark, temperature is 18 ℃.Formulate grade scale investigation occurring degree according to onset area after 9d, calculate preventive effect.The preventive effect that draws powdery mildew of cucumber by test is 78.33%.
Claims (1)
1. locust stems and leaves extraction and the composite aqueous pesticide solution of Tea Saponin in order to prevent and treat powdery mildew of cucumber, is characterized in that, each component and percentage by weight are: locust stems and leaves extraction 1.3%-1.7%, and Tea Saponin 0.3%-0.7%, surplus is distilled water;
The preparation method of described aqueous pesticide solution comprises the steps:
Step 1 is got dry locust stems and leaves powder, adds ethanol, and dipping extracts, and merging filtrate after filtering is evaporated to paste, gets locust stems and leaves medicinal extract; In step 1, described volume grade of alcohol is 15%, and addition is 10-30 times of locust stems and leaves powder weight; In step 1, described dipping extracts and is specially, and dipping extracted 12-24 hour under 15 ℃-35 ℃;
Step 2 adds the distilled water with locust stems and leaves powder identical weight in the locust stems and leaves medicinal extract, and the medicinal extract vibration is suspended, and filtering suspension liquid is concentrated into filtrate dried, obtains locust stems and leaves extraction;
Step 3 is mixed locust stems and leaves extraction and Tea Saponin by weight percentage, with the distilled water dissolving, obtains preventing and treating locust stems and leaves extraction and the composite aqueous pesticide solution of Tea Saponin of powdery mildew of cucumber.
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| CN 200910048734 CN101518267B (en) | 2009-04-02 | 2009-04-02 | Aqueous pesticide solution compounded by silver chain extract and tea saponin and method for preparing same |
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| CN101518267B true CN101518267B (en) | 2013-06-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103004894A (en) * | 2012-12-04 | 2013-04-03 | 上海交通大学 | Biopesticide for preventing and treating powdery mildew of melons and fruits and preparation method of biopesticide |
| CN105707128B (en) * | 2016-03-09 | 2018-10-02 | 高小文 | A kind of composition pesticide and preparation method and application containing tea saponin |
| CN105746610B (en) * | 2016-03-23 | 2018-06-26 | 国际竹藤中心 | A kind of synergist of plant source aphicide |
| CN105638755B (en) * | 2016-03-23 | 2018-06-19 | 国际竹藤中心 | A kind of plant insecticide and preparation method thereof |
| CN115568469A (en) * | 2022-10-11 | 2023-01-06 | 湖南省林业科学院 | Compound water zooplankton inhibitor of tea saponin, preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709067A (en) * | 2005-06-30 | 2005-12-21 | 上海交通大学 | Method for preparing solution for controlling cucumber and tomato disease using albizzia julibrissin extract |
| CN101147499A (en) * | 2007-09-13 | 2008-03-26 | 上海交通大学 | Preparation method of water solution with locust stems and leaves extraction for controlling cucumber powdery mildew |
| CN101288413A (en) * | 2008-05-26 | 2008-10-22 | 浙江省农业科学院 | Tripterygium wilfordii compound pesticides for high effectively preventing and curing tea geometrid |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709067A (en) * | 2005-06-30 | 2005-12-21 | 上海交通大学 | Method for preparing solution for controlling cucumber and tomato disease using albizzia julibrissin extract |
| CN101147499A (en) * | 2007-09-13 | 2008-03-26 | 上海交通大学 | Preparation method of water solution with locust stems and leaves extraction for controlling cucumber powdery mildew |
| CN101288413A (en) * | 2008-05-26 | 2008-10-22 | 浙江省农业科学院 | Tripterygium wilfordii compound pesticides for high effectively preventing and curing tea geometrid |
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