CN104381313A - Biopesticide extracted from flos rhododendri mollis - Google Patents
Biopesticide extracted from flos rhododendri mollis Download PDFInfo
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- CN104381313A CN104381313A CN201410744835.8A CN201410744835A CN104381313A CN 104381313 A CN104381313 A CN 104381313A CN 201410744835 A CN201410744835 A CN 201410744835A CN 104381313 A CN104381313 A CN 104381313A
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- biopesticide
- rhododendron molle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention discloses biopesticide extracted from flos rhododendri mollis. Flos rhododendri mollis extracts and glycyrrhizic acid are combined and are processed; the biopesticide is prepared from the following components in weight percentage: 0.8-25% of crude flos rhododendri mollis extract, 1-10% of glycyrrhizic acid, 2-12% of dispersing agent, 3-13% of emulsifying agent, and the balance of solvent or filler, totally 100%, wherein the dispersing agent is sodium lignin sulfonate, the emulsifying agent is sodium dodecyl benzene sulfonate, the solvent is organic solvent-xylene, and the filler is kieselguhr. The biopesticide extracted from flos rhododendri mollis has the advantages of short production period, high medicine ingredient content, no environment pollution in the production process and the like, and the biopesticide resource can be fully utilized and developed.
Description
Technical field:
The present invention relates to the biopesticide that a kind of Rhododendron molle is extracted.
Background technology:
Threatened by the insects such as tea geometrid, tea false eye leafhopper, tea caterpillar, the black poison moth of tea, mite class, the loss caused because of insect pest every year on average reaches 10 ~ 20%, and wherein tea geometrid is the most serious in the harm whole year.Tea geometrid eats leaf with larva, eaten up in tea place in blocks when occurring serious, has a strong impact on tea yield and growth of tea plant.Because the biopesticide kind extracted for effective Rhododendron molle of tea geometrid is little, tea grower is substantially is mostly rely on the consumption that reduces chemical pesticide or avoid using the chemical pesticide of high residue to prevent and treat tea geometrid as far as possible, and result is still difficult to ensure that the agriculture of card tealeaves is residual and does not exceed standard and the quality of tealeaves.
Rhododendron molle is Rhododendron molle is that Wei Yu section Rhododendron molle belongs to bejuco, is distributed in the provinces such as south China Fujian, Jiangxi, Zhejiang, Hubei, Hunan, Guangdong, Taiwan, is precious medicinal plant.Rhododendron molle purposes is extremely wide, and its radical center part is used for medicine, is also the splendid plant of botanical pesticide, the biopesticide that Gen Pi and on the ground branches and leaves extract for the production of Rhododendron molle, and remaining residue can be processed into fertilizer, has very high economic worth.Shennong's Herbal is called: degasification scabies is disturbed, desinsection fish, raw mountain valley.Compendium of Material Medica is called: root is especially malicious.Immersion is as realgar look, and air exhaustion is smelly.In garden, stain is with desinsection, use quite and, its leaf is also malicious, is as good as with gelsemium elegan.Chinese azalea root skin is the insecticidal materials of China's folk tradition, crushed material or extract have strong stomach toxicity to the multiple agricultural such as cabbage caterpillar, diamond-back moth fruit tree pest insect, food refusal can be caused or play anesthetic effect, being China river, Zhejiang one is with widely used insecticide in vegetable garden.Rhododendron molle is developed as the biopesticide that Rhododendron molle extracts, may be used for the production of pollution-free vegetable, organic tea, Pollution-free Fruit, GAP medicinal material etc., thus obtain the food of " safety, high-quality, true, controlled ".Through State Intellectual Property Office's patent retrieval, be that raw material is prepared the patent disclosure of biopesticide that Rhododendron molle extracts and had 10 with Rhododendron molle, wherein authorized 2, be that the patent that agricultural chemicals prepared separately by raw material has 3 with Rhododendron molle, namely Zhejiang Medicine Co invention " Rhododendron molle extract preparation agriculture and forestry injurious insect control in application ", " application of the non-water extract of Rhododendron molle in agricultural chemicals preparation " of Lushiji Bio-Engineering Co Ltd, Wuhan's invention and " Rhododendron molle insecticide and the manufacture method thereof " of Nuisanceless Pesticide Research Service Center, Xibei Agroforestry Science and T's development, be raw material with Rhododendron molle and have 7 with the patent of other material combination, wherein compatibility raw material mainly contains kuh-seng, the Chinese pulsatilla, stemonine, the root of langdu, Li Lu, tobacco etc.But the patent of the biopesticide that the Rhododendron molle Rhododendron molle being compatibility raw material with the withered element of tea is extracted has no report.
To the object of the invention is to Rhododendron molle and glycyrrhizic acid for raw material, a kind of low cost, wide spectrum be provided, biopesticide that the Rhododendron molle of synergy and natural plant is extracted and preparation method thereof.
The present invention adopts aseptic extraction in Rhododendron molle organism leaching process, extraction solvent is water, and Extracting temperature is less than 49 DEG C, and extraction time is greater than 50 hours, and require adopt vapor tight tank airtight and in leaching process, constantly rotate extraction vessel, to accelerate the precipitation of extract.
Summary of the invention:
There is provided a kind of after adding the lower vegetalitas synergist of aboundresources, price, can significantly improve Pests of Tea-Plants tea geometrid control efficiency, Rhododendron molle compound insecticidal preparation that quick-acting is high.
The object of the invention is achieved by the following technical programs.
The biopesticide that a kind of Rhododendron molle is extracted, it is characterized in that with Rhododendron molle plant extracts and glycyrrhizic acid compatibility, through certain process, the significant percentage example of each component is: Rhododendron molle crude extract 0.8-25%, glycyrrhizic acid 1-10%, dispersant 2-12%, emulsifier 3-13%, solvent or filler complement to 100%, described dispersant is sodium lignin sulfonate, described emulsifier is neopelex, and described solvent is organic solvent dimethylbenzene, and described filler is diatomite.
The preparation method of biopesticide that Rhododendron molle is extracted is realized by following steps:
After weighing by the formula of compounded pesticides, by Rhododendron molle crude extract, glycyrrhizic acid, dispersant, emulsifier and solvent or filler, after the stirring of general method, mixing, Rhododendron molle compounded cream pesticide or wetting powder insecticide can be mixed with.
Concrete steps are as follows: first, the preparation of Rhododendron molle crude extract: the root of Rhododendron molle is cleaned, dry, pulverize after with 95% alcohol solvent by weight volume be 1 gram: 10 milliliters of ratios, extract with soxhlet extraction, after extract concentrates, namely obtain solid-state Rhododendron molle crude extract;
Secondly, the reasonable assembly of Rhododendron molle crude extract and glycyrrhizic acid: by the biologicall test of indoor to tea geometrid, determines the appropriate proportioning of co-toxicity coefficient more than 150 of employing two kinds of active ingredients;
Then, the screening of dispersant or emulsifier: the compounded technology utilizing agricultural chemicals, screens suitable dispersant, emulsifier, to increase dispersive property and the field control effect of product;
Thirdly, the screening of filler or solvent: according to chemical property and the instructions for use of active ingredient, screens the processing that suitable filler or organic solvent carry out product;
Finally, the preparation of medicament: 1. missible oil: two kinds of active ingredients fully dissolved with solvent in container by proportioning, add emulsifier is creaming agent product after stirring, filtration, detection, packing; 2. wetting powder: by proportioning, two kinds of active ingredients are fully mixed with filler in container, add dispersant, stir, complete the production of product through last handling processes such as air-flow crushings, carry out the detection of active ingredient, packing.
Beneficial effect of the present invention: though little to the toxic action of tea geometrid larvae through testing clear and definite glycyrrhizic acid itself, after composite with Rhododendron molle extract formulation, the control efficiency to tea geometrid larvae can be significantly improved.
Embodiment:
By following examples, the present invention is described in further detail, but the present invention not limited by these contents.
The biopesticide that a kind of Rhododendron molle is extracted, it is characterized in that with Rhododendron molle plant extracts and glycyrrhizic acid compatibility, through certain process, the significant percentage example of each component is: Rhododendron molle crude extract 0.8-25%, glycyrrhizic acid 1-10%, dispersant 2-12%, emulsifier 3-13%, solvent or filler complement to 100%, described dispersant is sodium lignin sulfonate, described emulsifier is neopelex, and described solvent is organic solvent dimethylbenzene, and described filler is diatomite.
First, the preparation of Rhododendron molle crude extract: by the root cleaning, drying of Rhododendron molle, pulverize after with 95% alcohol solvent by weight volume be 1 gram: 10 milliliters of ratios, with soxhlet extraction extract, namely obtain solid-state Rhododendron molle crude extract after extract concentrates;
Secondly, the reasonable assembly of Rhododendron molle crude extract and glycyrrhizic acid: by the biologicall test of indoor to tea geometrid, determines the appropriate proportioning of co-toxicity coefficient more than 150 of employing two kinds of active ingredients;
Then, the screening of dispersant or emulsifier: the compounded technology utilizing agricultural chemicals, screens suitable dispersant, emulsifier, to increase dispersive property and the field control effect of product;
Thirdly, the screening of filler or solvent: according to chemical property and the instructions for use of active ingredient, screens the processing that suitable filler or organic solvent carry out product;
Finally, the preparation of medicament: 1. missible oil: two kinds of active ingredients fully dissolved with solvent in container by proportioning, add emulsifier is creaming agent product after stirring, filtration, detection, packing; 2. wetting powder: by proportioning, two kinds of active ingredients are fully mixed with filler in container, add dispersant, stir, complete the production of product through last handling processes such as air-flow crushings, carry out the detection of active ingredient, packing.
Claims (1)
1. the biopesticide of a Rhododendron molle extraction, it is characterized in that with Rhododendron molle plant extracts and glycyrrhizic acid compatibility, the significant percentage example of each component is: Rhododendron molle crude extract 0.8-25%, glycyrrhizic acid 1-10%, dispersant 2-12%, emulsifier 3-13%, solvent or filler complement to 100%, described dispersant is sodium lignin sulfonate, described emulsifier is neopelex, described solvent is organic solvent dimethylbenzene, and described filler is diatomite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744835.8A CN104381313A (en) | 2014-12-09 | 2014-12-09 | Biopesticide extracted from flos rhododendri mollis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744835.8A CN104381313A (en) | 2014-12-09 | 2014-12-09 | Biopesticide extracted from flos rhododendri mollis |
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| Publication Number | Publication Date |
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| CN104381313A true CN104381313A (en) | 2015-03-04 |
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| CN201410744835.8A Pending CN104381313A (en) | 2014-12-09 | 2014-12-09 | Biopesticide extracted from flos rhododendri mollis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165927A (en) * | 2015-06-15 | 2015-12-23 | 柳州市侗天湖农业生态旅游投资有限责任公司 | Insecticide for tree ground insect pest |
-
2014
- 2014-12-09 CN CN201410744835.8A patent/CN104381313A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165927A (en) * | 2015-06-15 | 2015-12-23 | 柳州市侗天湖农业生态旅游投资有限责任公司 | Insecticide for tree ground insect pest |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |
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| WD01 | Invention patent application deemed withdrawn after publication |