CN105230684A - Pest-resistant protectant used on surface of lotus leaf and preparation method thereof - Google Patents
Pest-resistant protectant used on surface of lotus leaf and preparation method thereof Download PDFInfo
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- CN105230684A CN105230684A CN201510706740.1A CN201510706740A CN105230684A CN 105230684 A CN105230684 A CN 105230684A CN 201510706740 A CN201510706740 A CN 201510706740A CN 105230684 A CN105230684 A CN 105230684A
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Abstract
The invention discloses a pest-resistant protectant used on the surface of lotus leaf and a preparation method thereof. The pest-resistant protectant is prepared from the following raw materials: n-hexane, ethyl ether, dysphania ambrosioides, flos daturae, fructus xanthii, melia azedarach fruit, croton tiglium fruit, bamboo bar, guinalphos, triazophos, deltamethrin, ethanol, octylphenol polyoxyethylene and water. According to the invention, natural pest-resistant plants are used, and an organic solvent extraction mode is adopted. During the process, many modern technologies such as freeze-drying, vacuum distillation and the like are adopted to reduce loss of active ingredients as much as possible during the extraction process, and chemical antibacterial pesticide raw medicines with high efficiency are mixed to finally prepare an emulsion. Thus, dosage of chemical pesticides is greatly decreased.
Description
Technical field
The invention belongs to the technology field of agricultural chemicals, be specifically related to pest-resistant protective agent of a kind of lotus leaf surface use and preparation method thereof.
Background technology
The blade face of lotus leaf is covered with " the little small hill " of one adjacent one, " small hill " has covered with fine hair, as vegetation dense on mountain, the top of " small hill " has grown again " pillbox " convex top of a steamed bun shape.Therefore, be filled with air at the recess of " small hill ", so just formed on the blade face be close to one deck very thin only have nano level air layer.Because rainwater and dust are for these microstructures on lotus leaf blade face, be tantamount to huge monster, so, when rainwater and dust landing, across one deck nanometer air, they can only form the contact of several point with " pillbox " the convex top on " little small hill ", cannot further " invasion ".Water forms the globule, and rolling has washed away the dust on blade face.This nano level ultra microstructure of lotus leaf, is not only conducive to that it is self-cleaning, also helps a large amount of various noxious bacterias and fungi that prevent from floating in air to its infringement.
Summary of the invention
In order to improve pesticide composition in the lotus leaf surface time of staying with hydrophobic property, strengthen action effect and the time of agricultural chemicals, the present invention invents a kind of agricultural chemicals protective agent and has the characteristic that stops lotus leaf surface and can rapid osmotic insect, improve agricultural chemicals availability, realize particular by following methods:
The pest-resistant protective agent that a kind of lotus leaf surface uses, it is characterized in that, be made up of the raw material of following weight portion: n-hexane 6 ~ 10, ether 2 ~ 4, chenopodium ambrosiodies 25 ~ 35, datura flower 6 ~ 10, the achene of Siberian cocklebur 10 ~ 14, chinaberry reality 6 ~ 8, crotons fruit 12 ~ 16, bamboo tar 4 ~ 7, quinalphos 12 ~ 18, Hostathion 7 ~ 10, decis 6 ~ 9, ethanol 5 ~ 10, octyl phenol polyoxyethylene 1 ~ 3 and water 60 ~ 80;
A preparation method for the pest-resistant protective agent that lotus leaf surface uses, is characterized in that, comprise following step:
(1) composite soil schizonepeta, the achene of Siberian cocklebur and other following residual components do not related to, first tentatively roll pulverizing, be ground into pulvis by low temperature less than-35 DEG C vacuum freeze-drying machines freeze-drying, then add n-hexane, ether and water, in ultrasonication machine, carry out fragmentation 45 ~ 60min by power 1.0 ~ 1.5kw obtain slurries;
(2) centrifugal segregation residue is carried out to (1) gained slurries, collect slurries, decompression distillation 20 ~ 35min is carried out to stoste, reduce pot inner pressure 0.5 ~ 0.7MPa, concentrated slurry;
(3) mix quinalphos, Hostathion, decis and ethanol, join in (2) gained slurries, under the high speed shear rotating speed of 600 ~ 800r/min, stirring action 30 ~ 40min is to dissolving completely, becomes agricultural chemicals stoste;
(4) finally mixing bamboo tar, OPEO are added in the stoste described in (3), are warming up to 65 ~ 80 DEG C and slowly stir into uniform emulsion.
Lotus leaf surface has the nanoscale projection of massif shape, and projection covers with the fine hair be made up of wax coat, after globule attachment, because the nanoscale distance between projection is not enough to the capillary effect of " bursting " hydrone, define one deck air layer at hydrone and lotus leaf surface, the globule can at Free-rolling above, when liquid pesticide is sprayed at above, what be unfavorable for agricultural chemicals spreads all over area, does not have the effect of integral protection, cause agricultural chemicals to run off, availability is extremely low also to happen occasionally.
Invent and found by test, adopt organic solvent effectively can dissolve the hydrophobic wax coat in lotus leaf top layer, the organic solvent of high concentration is adopted to test separately lotus leaf respectively, lotus leaf is immersed in 5 ~ 10h in the organic solvent of high concentration, centrifugal rear mensuration lotus leaf weight-loss ratio, ether after testing, the treatment effect of chloroform and n-hexane 3 kinds of organic solvents is best, the weight-loss ratio of lotus leaf is respectively 1.85%, 1.97%, 2.15%, simultaneously because the solubility content of fatty acid in lotus leaf is lower, what can infer that organic solvent removes is for main organic soluble materials with wax coat etc., the effect of n-hexane is best, rough effect of dissolving extraction can also be carried out to the essential oil of plant component as organic solvent, the agricultural chemicals protectant of invention is made to have unlimited possibility on action effect.
Invention adds chenopodium ambrosiodies simultaneously, chenopodium ambrosiodies is through the obtained by crude extractions of organic solvent, can matching surface activating agent and water, for the solvent of the former medicine of chemistry, finally make emulsion or other forms, containing chenopodium ambrosiodies essential oil in chenopodium ambrosiodies, research finds that it has poisoning facilitation to the insecticide of dish goose class insect, action principle is that it can promote the osmosis of insecticide, and last topical application method result also confirms: chenopodium ambrosiodies essential oil shows good synergistic effect to chlorophos, ethiprole, chlopyrifos.
Beneficial effect of the present invention: the insect protected protective agent of invention, the plant of the natural insect pest of most employing, adopt the mode of organic solvent extraction, freeze-drying is have employed in process, the various modern technology such as step-down distillation reduce the loss of active ingredient in leaching process as far as possible, the former medicine of the antibacterial agricultural chemicals of chemistry that then mixing efficiency is high, finally make emulsion, the usage amount of greatly less chemical pesticide, treat as the lotus leaf that also may be used for while protective agent having invaded food by insect pest, when damage by disease and insect due to lotus leaf occurs in lotus leaf adjoined water surface mostly, lotus leaf now at surface of water, blade face and horizontal line more consistent, agricultural chemicals of the present invention is sprayed on blade face with the form of spraying, special n-hexane additive can effectively make pesticide spray evenly be attached on lotus leaf, protected effect maximizes.
Embodiment
Embodiment 1:
The pest-resistant protective agent that a kind of lotus leaf surface uses, it is characterized in that, be made up of the raw material of following weight portion (Kg): n-hexane 8, ether 2, chenopodium ambrosiodies 28, datura flower 7, the achene of Siberian cocklebur 11, chinaberry reality 7, crotons fruit 12, bamboo tar 5, quinalphos 18, Hostathion 7, decis 6, ethanol 6, octyl phenol polyoxyethylene 1 and water 80;
A preparation method for the pest-resistant protective agent that lotus leaf surface uses, is characterized in that, comprise following step:
(1) composite soil schizonepeta, the achene of Siberian cocklebur and other following residual components do not related to, first tentatively roll pulverizing, be ground into pulvis by low temperature less than-35 DEG C vacuum freeze-drying machines freeze-drying, then add n-hexane, ether and water, in ultrasonication machine, carry out fragmentation 45 ~ 60min by power 1.0 ~ 1.5kw obtain slurries;
(2) centrifugal segregation residue is carried out to (1) gained slurries, collect slurries, decompression distillation 20 ~ 35min is carried out to stoste, reduce pot inner pressure 0.5 ~ 0.7MPa, concentrated slurry;
(3) mix quinalphos, Hostathion, decis and ethanol, join in (2) gained slurries, under the high speed shear rotating speed of 600 ~ 800r/min, stirring action 30 ~ 40min is to dissolving completely, becomes agricultural chemicals stoste;
(4) finally mixing bamboo tar, OPEO are added in the stoste described in (3), are warming up to 65 ~ 80 DEG C and slowly stir into uniform emulsion.
The pest-resistant protective agent emulsion used by a kind of lotus leaf surface of the present invention to be integrated with water dilution with the ratio of 1:100 ~ 150, then the surface of lotus leaf is evenly sprayed at the form of spraying, result confirms: lotus leaf agricultural chemicals protective agent of the present invention effectively can prevent and treat the generation of all kinds of damage by disease and insect, be convenient to management, with low cost, realize stable volume increase.
Claims (2)
1. the pest-resistant protective agent of a lotus leaf surface use, it is characterized in that, be made up of the raw material of following weight portion: n-hexane 6 ~ 10, ether 2 ~ 4, chenopodium ambrosiodies 25 ~ 35, datura flower 6 ~ 10, the achene of Siberian cocklebur 10 ~ 14, chinaberry reality 6 ~ 8, crotons fruit 12 ~ 16, bamboo tar 4 ~ 7, quinalphos 12 ~ 18, Hostathion 7 ~ 10, decis 6 ~ 9, ethanol 5 ~ 10, octyl phenol polyoxyethylene 1 ~ 3 and water 60 ~ 80.
2. the preparation method of the pest-resistant protective agent of a kind of lotus leaf surface use according to claim 1, is characterized in that, comprise following step:
(1) composite soil schizonepeta, the achene of Siberian cocklebur and other following residual components do not related to, first tentatively roll pulverizing, be ground into pulvis by low temperature less than-35 DEG C vacuum freeze-drying machines freeze-drying, then add n-hexane, ether and water, in ultrasonication machine, carry out fragmentation 45 ~ 60min by power 1.0 ~ 1.5kw obtain slurries;
(2) centrifugal segregation residue is carried out to (1) gained slurries, collect slurries, decompression distillation 20 ~ 35min is carried out to stoste, reduce pot inner pressure 0.5 ~ 0.7MPa, concentrated slurry;
(3) mix quinalphos, Hostathion, decis and ethanol, join in (2) gained slurries, under the high speed shear rotating speed of 600 ~ 800r/min, stirring action 30 ~ 40min is to dissolving completely, becomes agricultural chemicals stoste;
(4) finally mixing bamboo tar, OPEO are added in the stoste described in (3), are warming up to 65 ~ 80 DEG C and slowly stir into uniform emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706740.1A CN105230684A (en) | 2015-10-27 | 2015-10-27 | Pest-resistant protectant used on surface of lotus leaf and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510706740.1A CN105230684A (en) | 2015-10-27 | 2015-10-27 | Pest-resistant protectant used on surface of lotus leaf and preparation method thereof |
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| CN105230684A true CN105230684A (en) | 2016-01-13 |
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| CN201510706740.1A Pending CN105230684A (en) | 2015-10-27 | 2015-10-27 | Pest-resistant protectant used on surface of lotus leaf and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209061A (en) * | 2006-12-29 | 2008-07-02 | 河南农业大学 | Preparation and application method of botanical insecticide |
| WO2009117621A1 (en) * | 2008-03-19 | 2009-09-24 | Tyratech, Inc. | Pest control compositions and methods |
| CN104365686A (en) * | 2014-09-28 | 2015-02-25 | 青岛特瑞信电子科技有限公司 | Plant-based high efficiency pesticide |
| CN104602520A (en) * | 2012-07-31 | 2015-05-06 | 拜尔农作物科学股份公司 | Compositions comprising a pesticidal terpene mixture and an insecticide |
-
2015
- 2015-10-27 CN CN201510706740.1A patent/CN105230684A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209061A (en) * | 2006-12-29 | 2008-07-02 | 河南农业大学 | Preparation and application method of botanical insecticide |
| WO2009117621A1 (en) * | 2008-03-19 | 2009-09-24 | Tyratech, Inc. | Pest control compositions and methods |
| CN104602520A (en) * | 2012-07-31 | 2015-05-06 | 拜尔农作物科学股份公司 | Compositions comprising a pesticidal terpene mixture and an insecticide |
| CN104365686A (en) * | 2014-09-28 | 2015-02-25 | 青岛特瑞信电子科技有限公司 | Plant-based high efficiency pesticide |
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Application publication date: 20160113 |