CN113040150A - Spinosad dispersible oil suspending agent for flying control and preparation method thereof - Google Patents
Spinosad dispersible oil suspending agent for flying control and preparation method thereof Download PDFInfo
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- CN113040150A CN113040150A CN202110199622.1A CN202110199622A CN113040150A CN 113040150 A CN113040150 A CN 113040150A CN 202110199622 A CN202110199622 A CN 202110199622A CN 113040150 A CN113040150 A CN 113040150A
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- spinosad
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
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- Dispersion Chemistry (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the field of pesticide preparation processing, discloses a spinosad dispersible oil suspending agent for flying prevention and a preparation method thereof, and belongs to the technical field of pesticides. The spinosad dispersible oil suspending agent consists of the following components: 0.5-50% of spinosad, 0-20% of dispersant, 1-40% of emulsifier, 0-20% of functional assistant, 0-10% of structure regulator and the balance of dispersion medium to 100%. The spinosad dispersible oil suspending agent disclosed by the invention is simple in preparation and use methods, and has the advantages of low surface tension, good wettability, high retention capacity and the like.
Description
Technical Field
The invention relates to the field of pesticide preparation processing, in particular to a spinosad dispersible oil suspending agent for flying prevention and a preparation method thereof.
Background
Spinosad is a macrocyclic lactone nuisance-free high-efficiency biological insecticide extracted from sugarcane polyspora spinosa fermentation liquor. Spinosad has a novel action mode, can continuously activate acetylcholine nicotinic receptors of target insects, but has a binding site different from nicotine and imidacloprid, and also can affect GABA receptors, so that the spinosad has no cross resistance with the current common pesticides. The spinosad has the effects of quick contact killing and stomach poisoning, can lead pests to be quickly paralyzed and paralyzed to finally die, can effectively prevent and control Lepidoptera, Diptera and Thysanoptera pests, can also well prevent and control certain pests which eat a large amount of leaves in Coleoptera and Orthoptera, and has a certain ovicidal action. The spinosad is a low-toxicity, high-efficiency and broad-spectrum pesticide, and is suitable for vegetables, fruit trees, gardening and crops.
In recent years, due to the continuous increase of labor cost, agricultural aviation plant protection industry in China is rapidly developed, and near ten million mu farmlands are sprayed with plant protection unmanned aerial vehicles every year. The conventional low-altitude unmanned spraying amount of liquid per mu is not more than 1L, the dilution concentration of the pesticide is about 15 times higher than that of ground manual or mechanical spraying, and the requirements on pesticide dosage and pesticide quality are correspondingly improved. Most of the conventional pesticide preparations in China cannot meet the spraying operation of a plant protection unmanned aerial vehicle at present, and the shortage of the pesticide for flying prevention becomes an important factor for restricting the development of agricultural aviation plant protection industry in China.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention mainly aims to provide a spinosad dispersible oil suspending agent for flight control and a preparation method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a spinosad dispersible oil suspending agent for flying control comprises a mixture of spinosad, a dispersant, an emulsifier, a functional auxiliary agent, a structure regulator and a dispersion medium.
And a preparation method of the spinosad dispersible oil suspending agent for flying control, which comprises the following steps: mixing and emulsifying an emulsifier and a dispersion medium, adding spinosad, a dispersant, a functional assistant and a structure regulator, mixing into slurry, and sanding the slurry in a nano sand mill until the particle size is less than 1 micron to prepare the spinosad dispersible oil suspending agent.
Moreover, the invention also provides a using method of the spinosad dispersible oil suspension, when in use, the liquid medicine is stable under a low dilution multiple, and the pesticide is used for aviation plant protection of unmanned planes, fixed-wing airplanes and the like.
The invention has the following beneficial effects:
compared with the conventional spinosad preparation, the spinosad dispersible oil suspending agent for flight control provided by the invention has the advantages of low surface tension, small contact angle and good wettability, so that the retention of the spinosad on target crops is improved, and the pesticide effect is further improved. The diluted concentration of the pesticide is about 15 times higher than that of the conventional pesticide in the low-volume spraying process of aviation plant protection, and the product can keep the liquid medicine stable and uniformly spread on the surface of the plant body under the condition.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a spinosad dispersible oil suspending agent for flying prevention, which comprises a mixture of spinosad, a dispersing agent, an emulsifier, a functional assistant, a structure regulator and a dispersing medium.
The spinosad dispersible oil suspending agent comprises the following components in percentage by weight: 0.5-50% of spinosad, 0-20% of dispersant, 1-40% of emulsifier, 0-20% of functional assistant, 0-10% of structure regulator and 100% of dispersion medium
The spinosad dispersible oil suspending agent preferably comprises the following components in percentage by weight: 1-30% of spinosad, 1-10% of dispersant, 1-30% of emulsifier, 1-10% of functional assistant, 0-5% of structure regulator and the balance of dispersion medium to 100%.
The dispersant is ionic surfactant or/and nonionic surfactant. The dispersing agent is preferably one or more of dialkyl succinate sulfonate, alkyl benzene sulfonate, polybutylene succinimide, lignosulfonate, polycarboxylate, fatty alcohol-polyoxyethylene ether sulfate and EO/PO block copolymer.
The emulsifier is anionic surfactant or/and nonionic surfactant. The emulsifier is preferably one or more of dodecyl sulfate, calcium dodecyl benzene sulfonate, polystyryl polyoxyethylene polyoxypropylene ether, nonylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, sorbitan fatty acid esters, acrylamide acrylic acid copolymers, fatty alcohol polyoxyethylene ether, oleic acid polyoxyethylene esters and EO/PO block copolymers.
The functional auxiliary agent is one or more of an anti-drift agent, an antioxidant and a penetrating agent. The anti-drift agent is preferably one or more of urea and polysaccharides. The antioxidant is preferably one or more of dibutyl hydroxy toluene, butyl hydroxy anisole, tert-butyl hydroquinone and propyl gallate. The penetrating agent is preferably one or more of branched polyoxyethylene ether, linear fatty alcohol polyoxyethylene ether and dioctyl succinic acid sulfonate.
The structure regulator is preferably one or more of fumed silica, modified silica, magnesium aluminum silicate, organic bentonite and acrylic acid modified alkyd resin.
The dispersion medium is preferably one or more of soybean oil, methyl oleate, light mineral oil, liquid paraffin, kerosene, turpentine and white oil.
The preparation method of the spinosad dispersible oil suspending agent comprises the following steps: mixing and emulsifying an emulsifier and a dispersion medium, adding spinosad, a dispersant, a functional assistant and a structure regulator, mixing into slurry, and sanding the slurry in a nano sand mill until the particle size is less than 1 micron to prepare the spinosad dispersible oil suspending agent.
The spinosad dispersible oil suspension can be used for aviation plant protection of unmanned planes, fixed-wing airplanes and the like.
The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments. All formulations were given in weight percent. The active components in the formula are metered in after being folded in hundred, and the auxiliary agent and the raw materials are conventional varieties sold in the market.
Example 1: 2.5% spinosad dispersible oil suspending agent
2.5% of spinosad, 5% of sodium lignosulfonate, 10% of nonylphenol polyoxyethylene ether, 5% of lauryl calcium sulfate, 2% of organic bentonite, 2% of white carbon black, 3% of urea and 100% of soybean oil supplement.
Example 2: 5% spinosad dispersible oil suspending agent
5% of spinosad, 4% of sulfonyl succinyl calcium, 10% of fatty alcohol-polyoxyethylene ether, 5% of castor oil-polyoxyethylene ether, 2% of organic bentonite, 2% of white carbon black and the balance of white oil to 100%.
Example 3: 10% spinosad dispersible oil suspending agent
10% of spinosad, 3% of polyisobutylene succinimide, 10% of fatty alcohol-polyoxyethylene ether, 5% of calcium dodecyl benzene sulfonate, 2% of organic bentonite, 2% of urea and the balance of methyl oleate to 100%.
Example 4: 15% spinosad dispersible oil suspending agent
15% of spinosad, 5% of EO/PO block copolymer, 12% of oleic acid polyoxyethylene ester, 5% of castor oil polyoxyethylene ether, 3% of sorbitan polyoxyethylene ether, 2% of organic bentonite and the balance of light mineral oil to 100%.
Comparative example 15% Spinosad suspension
5% of spinosad, 4% of polycarboxylate, 2% of EO/PO block copolymer, 1% of white carbon black, 0.2% of xanthan gum, 1% of magnesium aluminum silicate, 5% of ethylene glycol and the balance of water to 100%.
The surface tension, contact angle, retention amount, and diluent stability performance indexes of example 2 and comparative example 1 were measured, and the results are shown in tables 1 to 4.
TABLE 1 surface tension determination at different dilution times
| Dilution factor | Example 2 (mN/m) | Comparative example 1 (mN/m) |
| 200 | 28.57 | 29.83 |
| 500 | 29.42 | 30.76 |
| 750 | 29.87 | 33.65 |
| 1000 | 30.01 | 37.87 |
TABLE 2 contact angle determination at different dilution times
| Dilution factor | EXAMPLE 2 (°) | COMPARATIVE EXAMPLE 1 (°) |
| 200 | 44.3 | 45.2 |
| 500 | 55.3 | 69.9 |
| 750 | 55.8 | 77.4 |
| 1000 | 60.6 | 83.1 |
TABLE 3 determination of the retention at different dilution times
| Dilution factor | Example 2 (mg) | COMPARATIVE EXAMPLE 1 (mg) |
| 200 | 43.2 | 41.3 |
| 500 | 40.0 | 39.7 |
| 750 | 42.2 | 31.8 |
| 1000 | 40.2 | 28.7 |
TABLE 4 stability of dilutions at different dilution times
| Dilution factor | Example 2 | Comparative example 1 |
| 200 | Uniformity | With granules |
| 500 | Uniformity | With granules |
| 750 | Uniformity | With granules |
| 1000 | Uniformity | Uniformity |
The experimental results show that compared with the spinosad suspending agent in the comparative example, the spinosad dispersible oil suspending agent prepared by the invention has lower surface tension, better wettability and higher retention under different dilution times, and the stability of the diluent is better under low dilution times.
Indoor biological activity assay
Reagent to be tested: 5% spinosad dispersible oil suspension (example 2), 5% spinosad suspension (comparative example 1).
Test targets: plutella xylostella (1)Plutella xylostella) Larvae of 3 years old, sensitive lines raised indoors.
Preparing a liquid medicine: according to different test requirements, the tested samples are respectively and accurately weighed by an electronic analytical balance, and the preparation is diluted into a series of liquid medicines with certain concentration gradient by water according to the test design dosage.
The test method comprises the following steps: the activity to the diamondback moth is determined by a spraying method. Taking leaves of cabbage cultivated in greenhouse, making into leaf dish with diameter of 3cm, and sequentially adding airbrush (pressure of 10 psi (about 0.7 kg/cm)) according to the design of test from low to high dosage2) Uniformly spraying 1.5mL of the solution, placing the solution into a culture dish with the diameter of 6cm and filled with filter paper, naturally drying in the shade, inoculating standard test insects, inoculating 10 insects for each treatment, repeating the treatment for 3 times, and arranging a blank control.
And (3) placing the treated test material in an observation chamber, wherein the temperature, the humidity and the illumination of the observation chamber can be adjusted as required. After 48 hours, the number of dead and live insects was investigated. Corrected mortality was calculated using the abbott equation and a computer program was used to determine the virulence regression equation, LC50 values, and 95% confidence limits for the test agents.
TABLE 5 Spinosad dispersible oil suspension agent indoor toxicity assay results
From the above experimental results, it can be seen that spinosad can disperse LC of oil suspension50Lower than those of spinosad suspending agents, so that the spinosad can disperse oil suspending agents on diamondback mothsThe control effect is better than that of the spinosad suspending agent.
Claims (7)
1. The spinosad dispersible oil suspending agent for flying control is characterized by consisting of the following components in percentage by weight: 0.5-50% of spinosad, 0-20% of dispersant, 1-40% of emulsifier, 0-20% of functional assistant, 0-10% of structure regulator and the balance of dispersion medium to 100%; the weight percentage of the components is preferably as follows: 1-30% of spinosad, 1-10% of dispersant, 1-30% of emulsifier, 1-10% of functional assistant, 0-5% of structure regulator and the balance of dispersion medium to 100%.
2. The spinosad dispersible oil suspending agent for flying prevention according to claim 1, wherein the dispersant is preferably one or more of dialkyl sulfosuccinates, alkyl benzene sulfonates, polybutylene succinimides, lignosulfonates, polycarboxylates, fatty alcohol polyoxyethylene ether sulfates, EO/PO block copolymers.
3. The spinosad dispersible oil suspending agent for flying defence according to claim 1, wherein the emulsifier is preferably one or more of dodecyl sulfate, calcium dodecyl benzene sulfonate, polystyrylpolyoxyethylenepolyoxypropylene ether, nonylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, sorbitan fatty acid esters, acrylamide acrylic acid copolymers, fatty alcohol polyoxyethylene ether, oleic acid polyoxyethylene ester and EO/PO block copolymers.
4. The spinosad dispersible oil suspending agent for flying prevention according to claim 1, wherein the functional auxiliary agent is one or more of an anti-drift agent, an antioxidant and a penetrant; the anti-drift agent is preferably one or more of urea and polysaccharides; the antioxidant is preferably one or more of dibutyl hydroxy toluene, butyl hydroxy anisole, tert-butyl hydroquinone and propyl gallate; the penetrating agent is preferably one or more of branched polyoxyethylene ether, linear fatty alcohol polyoxyethylene ether and dioctyl succinic acid sulfonate.
5. The spinosad dispersible oil suspending agent for flying prevention according to claim 1, wherein the structure regulator is preferably one or more of fumed silica, modified silica, magnesium aluminum silicate, organic bentonite and acrylic acid modified alkyd resin.
6. The spinosad dispersible oil suspending agent for flight control according to claim 1, wherein the dispersing medium is one or more of soybean oil, methyl oleate, light mineral oil, liquid paraffin, kerosene, turpentine and white oil.
7. The spinosad dispersible oil suspension for the flying defense according to claim 1 is characterized in that the preparation method of the spinosad dispersible oil suspension for the flying defense comprises the steps of mixing and emulsifying an emulsifier and a dispersion medium, adding the spinosad, a dispersing agent, a functional assistant and a structure regulator, mixing into slurry, and sanding the slurry in a nano-sand mill until the particle size is less than 1 micron to prepare the spinosad dispersible oil suspension.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812410A (en) * | 2021-10-09 | 2021-12-21 | 河北威远生物化工有限公司 | Synergistic spinosad suspending agent |
| CN114176092A (en) * | 2021-12-28 | 2022-03-15 | 利民化学有限责任公司 | Nano oil suspending agent containing mancozeb and prothioconazole and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785455A (en) * | 2010-02-05 | 2010-07-28 | 深圳诺普信农化股份有限公司 | Pesticide oil suspension agent and preparation method thereof |
| CN108967445A (en) * | 2018-09-26 | 2018-12-11 | 江苏邦盛生物科技有限责任公司 | A kind of dispersible oil-suspending agent and preparation method thereof containing multiple killing teichomycin and Dipel |
-
2021
- 2021-02-23 CN CN202110199622.1A patent/CN113040150B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785455A (en) * | 2010-02-05 | 2010-07-28 | 深圳诺普信农化股份有限公司 | Pesticide oil suspension agent and preparation method thereof |
| CN108967445A (en) * | 2018-09-26 | 2018-12-11 | 江苏邦盛生物科技有限责任公司 | A kind of dispersible oil-suspending agent and preparation method thereof containing multiple killing teichomycin and Dipel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812410A (en) * | 2021-10-09 | 2021-12-21 | 河北威远生物化工有限公司 | Synergistic spinosad suspending agent |
| WO2023056660A1 (en) * | 2021-10-09 | 2023-04-13 | 河北威远生物化工有限公司 | Synergistic spinosad suspension agent |
| CN114176092A (en) * | 2021-12-28 | 2022-03-15 | 利民化学有限责任公司 | Nano oil suspending agent containing mancozeb and prothioconazole and preparation method thereof |
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