CN111869673A - Imidaclothiz dispersible oil type pesticide, preparation method and application thereof - Google Patents
Imidaclothiz dispersible oil type pesticide, preparation method and application thereof Download PDFInfo
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- CN111869673A CN111869673A CN202010614576.2A CN202010614576A CN111869673A CN 111869673 A CN111869673 A CN 111869673A CN 202010614576 A CN202010614576 A CN 202010614576A CN 111869673 A CN111869673 A CN 111869673A
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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
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
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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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- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
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Abstract
The invention discloses a imidaclothiz dispersible oil type insecticide, which consists of the following components in percentage by weight: 1-40% of imidaclothiz, 10-20% of emulsifier, 1-10% of dispersant, 10-20% of composite synergist, 0.5-3% of thickener, 0.01-0.05% of defoamer and the balance of oily dispersion medium. The content of the imidaclothiz component is preferably 10-30%, more preferably 20%, and the imidaclothiz component has better control effect on certain pests, and reaches 85% -99%. During preparation, a formula with better performance can be obtained by selecting different raw materials with different adding sequences and different rotating speeds of a shearing machine or a sand mill.
Description
Technical Field
The invention relates to an agricultural insecticide.
Background
The Imidaclothiz (Imidaclothiz) has a chemical name of 1- (5-chloro-2-thiazolyl methyl) -N-nitroimidazolidinylidene-2-amine, is a thiazole heterocyclic high-efficiency low-toxicity broad-spectrum pesticide, can be used for preventing and treating rice leafhoppers, plant hoppers and thrips on various crops, is also effective on coleoptera, diptera and lepidoptera pests, is particularly high in toxicity on rice chilo suppressalis and tryporyza incertulas, and is a novel nicotine pesticide.
The imidaclothiz has the structural formula:
patent application No.: 2011102694545 provides a chloro-thialine-containing ultra-low volume liquid, the active component is composed of chloro-thialine, or the chloro-thialine is compounded with the active component II, the rest components are auxiliary agent and solvent. The invention can prevent and control various pests of rice, wheat, corn, vegetables, tobacco, tea trees, fruit trees and sugarcane by ultra-low volume spraying, low volume spraying or ultra-low volume electrostatic spraying; the invention does not introduce the preparation process and is not helpful to guide the production practice.
Disclosure of Invention
The purpose of the invention is as follows:
the imidaclothiz dispersible oil type pesticide can improve the dispersion uniformity of active ingredients and the absorbability to pests, thereby improving the control effect and reducing the harm to the environment, and the preparation method and the application thereof.
The technical scheme is as follows:
the imidaclothiz dispersible oil type pesticide of the invention comprises the following components by weight percent: 1-40% of imidaclothiz, 10-20% of emulsifier, 1-10% of dispersant, 10-20% of composite synergist, 0.5-3% of thickener, 0.01-0.05% of defoamer and the balance of oily dispersion medium.
The content of the imidaclothiz component is preferably 10-30%, and the control effect on pests reaches more than 60%; further preferably 20 percent, and has better control effect on certain pests, reaching 85 to 99 percent.
In the invention, the emulsifier is selected from one or more of ethoxy mixed fatty acids, phenethyl phenol polyoxyethylene, benzyl phenol polyoxyethylene, polyester macromolecules and special emulsifier mixtures.
In the present invention, the composite synergist is selected from nonionic and anionic compounds such as silicone compounds, fatty alcohol polyoxyethylene compounds, dioctyl sodium sulfosuccinate compounds, isotridecanol polyoxyethylene ethers, and the like, and preferably two or more of silicone compounds Prime, nonionic compounds 900, fatty alcohol polyoxyethylene compounds NP-40, dioctyl sodium sulfosuccinate compounds 3421S, isotridecanol polyoxyethylene ether compounds 3462, and anionic compounds 3477. The composite synergist is further preferably compounded by a silicone synergist Prime and a nonionic synergist 900 in a mass ratio of 1: 3; or compounding the fatty alcohol polyoxyethylene synergist NP-40 and the nonionic synergist 900 in a mass ratio of 1: 3; or the composition of the organic silicon synergist and the dioctyl sodium sulfosuccinate synergist in the mass ratio of 1: 10; or the isomeric tridecanol polyoxyethylene ether synergist 3462 and the anion synergist 3477 with the mass ratio of 4:10 are compounded, and various hydrogen bonds and van der Waals forces are generated between the compound synergist and the imidaclothiz.
In the present invention, the dispersant is selected from one or more of polycarboxylate dispersants, polysulfonates, alkylphenol polyoxyethylene polyoxypropylene ether dispersants, and modified polycarboxylate dispersants; preferably one or more of the models 3498D, D-600, 430, 410, to prevent agglomeration of the imidaclothiz.
The preparation method of the imidaclothiz dispersible oil type pesticide comprises the following process steps:
(1) shearing and stirring the emulsifier and the composite synergist uniformly at a high speed (higher than 600 revolutions per minute), and adding the thickening agent and the defoaming agent
(2) Then adding the effective component imidaclothiz for shearing and dispersing again to generate hydrogen bonds or van der Waals force between molecules among the emulsifier, the composite synergist and the atomic functional groups of the imidaclothiz (the shearing rotating speed is lower than that of the shearing machine in (1) and is 200-500 r/min, so that the atoms or the molecules are in close contact to form the hydrogen bonds or van der Waals force);
(3) then, adding an oily dispersion medium (dispersant), fully wetting, dispersing and emulsifying the imidaclothiz to form an oily dispersion system;
(4) and finally, moving to a sand mill for wet sanding, and further preventing the imidaclothiz from agglomerating and creaming (the rotating speed of the sand mill is 120-180 r/min, which is lower than that of the shearing machine in the step (2), the size of grinding teeth of the sand mill and the distance between the grinding teeth are millimeter-based, and the formed hydrogen bonds are not broken up).
The invention provides an application of the pesticide, which is mainly used for preventing and controlling pests on crops.
Wherein the crops comprise grains, fruit trees, melons, vegetables, flowers and the like, and preferably rice, wheat, citrus, apples, peaches, pears, kidney beans, cabbages, Chinese cabbages, cauliflowers, roses, Chinese roses and chrysanthemum.
Wherein the pests comprise aphids, whiteflies, rice planthoppers, scale insects, tea lesser leafhoppers, thrips, chilo suppressalis, leaf miners, tea geometrids and the like. Especially, the rice planthopper and chilo suppressalis in the paddy field have better control effect, and the control effect reaches 92-99% by adopting proper concentration and dosage.
The beneficial effects are that:
the imidaclothiz has high activity, and through the synergistic effect among the auxiliary agents, the toxicity of the imidaclothiz is reduced, and the imidaclothiz is fully fused in an oily dispersion medium and fully emulsified, wetted and dispersed on effective components, so that the effective components fully exert the drug effect.
The particle size of the traditional imidaclothiz-related wettable powder and water dispersible granule products exceeds 50 mu m due to the limitation of the crushing form, and the traditional imidaclothiz-related wettable powder and water dispersible granule products are easy to generate adhesion and polymerization due to the limitation of the dosage form, are easy to block a spray head in the using process and cannot give full play to the pesticide effect.
The dosage form of the existing product is a dispersible oil suspending agent, the particle size range is not more than 5 mu m, and due to the addition of an oily dispersing medium, active ingredients can enter the interior of the product through pest epidermis to play a role of systemic absorption, so that the permeability and the utilization rate of the active ingredients are improved, and the harm to the ecological environment is reduced.
Detailed Description
In the insecticide of the present invention, the composite synergist is preferably selected from any two or more of silicone synergist Prime, nonionic synergist 900, fatty alcohol polyoxyethylene synergist NP-40, dioctyl sodium sulfosuccinate 3421S, isotridecanol polyoxyethylene ether synergist 3462, and anionic synergist 3477. In a specific embodiment, the composite synergist is a composite of a silicone synergist Prime and a nonionic synergist 900 in a mass ratio of 1: 3; or compounding the fatty alcohol polyoxyethylene synergist NP-40 and the nonionic synergist 900 in a mass ratio of 1: 3; or the composition of the organic silicon synergist and the dioctyl sodium sulfosuccinate synergist in the mass ratio of 1: 10; or the isomeric tridecanol polyoxyethylene ether synergist 3462 and the anion synergist 3477 in the mass ratio of 4: 10.
In the present invention, the emulsifier is preferably selected from one or more of phenethylphenol polyoxyethylene, benzyl phenol polyoxyethylene, polyester macromolecule and special emulsifier mixture.
In the present invention, the dispersant is preferably one or more types of polycarboxylate dispersants, polysulfonates, alkylphenol polyoxyethylene polyoxypropylene ether dispersants, and modified polycarboxylate dispersants; more preferably one or more selected from the group consisting of models 3498D, D-600, 430, 410.
In a specific embodiment, the imidaclothiz dispersible oil suspension pesticide comprises the following components in parts by mass: 10% of imidaclothiz, 12% of emulsifier, 3% of dispersant, 15% of composite synergist, 1% of thickener, 0.1% of defoamer and the balance of methyl oleate;
or the imidaclothiz dispersible oil suspension pesticide comprises the following components in percentage by mass: 10% of imidaclothiz, 15% of emulsifier, 3% of dispersant, 15% of composite synergist, 1% of thickener, 0.1% of defoamer and the balance of methyl oleate;
or the imidaclothiz dispersible oil suspension pesticide comprises the following components in percentage by mass: 20% of imidaclothiz, 20% of emulsifier, 3% of dispersant, 15% of composite synergist, 1% of thickener, 0.1% of defoamer and the balance of methyl oleate;
in the present invention, the sanding time is 2 to 3 hours. Sanding until the fineness of the material reaches D97 of 6.5 μm, 5.5 μm, 5.0 μm and 4.5 μm.
In order to further illustrate the present invention, the following examples are provided to describe the preparation method and application of the imidaclothiz dispersible oil suspension pesticide in detail, but they should not be construed as limiting the scope of the present invention.
Example 1:
weighing 55.6g of oily dispersion medium into a reaction kettle with shearing and stirring functions, and then adding an ethoxy mixed fatty acid emulsifier OD 18: 15g, modified polycarboxylate dispersant 410: 3g, organic silicon synergist Prime: 5g, nonionic synergist 900: 10g, organic bentonite DK 04: 1g, silicone defoamer SAG 1572: 0.01g, starting shearing and stirring for 5 minutes, finally adding 10.4g of imidaclothiz original drug (content 96%) in a stirring state, continuing shearing and stirring for 5 minutes until all the materials are uniformly mixed, adding the uniformly mixed materials into a sand mill, and after sanding for 2 hours, detecting that the fineness of the materials reaches D97: and after 5.0 mu m, filtering and discharging, detecting according to the quality standard of the dispersible oil suspending agent, and after the quality is qualified, reaching 10 percent of imidaclothiz dispersible oil suspending agent.
Example 2:
weighing 45.2g of oily dispersion medium into a reaction kettle with shearing and stirring functions, and then adding an ethoxy mixed fatty acid emulsifier OD 18: 15g, modified polycarboxylate dispersant 410: 3g, organic silicon synergist Prime: 5g, nonionic synergist 900: 10g, organic bentonite DK 04: 1g, silicone defoamer SAG 1572: 0.01g, starting shearing and stirring for 5 minutes, finally adding 20.8 g of imidaclothiz original drug (content 96%) in a stirring state, continuing shearing and stirring for 5 minutes until all the materials are uniformly mixed, adding the uniformly mixed materials into a sand mill, and after sanding for 2 hours, detecting that the fineness of the materials reaches D97: and after 5.0 mu m, filtering and discharging, detecting according to the quality standard of the dispersible oil suspending agent, and after the quality is qualified, reaching 20 percent of the imidaclothiz dispersible oil suspending agent.
Example 3:
weighing 45.2g of oily dispersion medium into a reaction kettle with shearing and stirring functions, and then adding an ethoxy mixed fatty acid emulsifier OD 18: 15g, modified polycarboxylate dispersant 410: 3g, organic silicon synergist Prime: 5g, nonionic synergist 900: 10g, organic bentonite DK 04: 1g, silicone defoamer SAG 1572: 0.01g, starting shearing and stirring for 5 minutes, finally adding 20.8 g of imidaclothiz original drug (content 96%) in a stirring state, continuing shearing and stirring for 5 minutes until all the materials are uniformly mixed, adding the uniformly mixed materials into a sand mill, and after sanding for 2 hours, detecting that the fineness of the materials reaches D97: and after 5.0 mu m, filtering and discharging, detecting according to the quality standard of the dispersible oil suspending agent, and after the quality is qualified, reaching 20 percent of the imidaclothiz dispersible oil suspending agent.
Example 4
Weighing 34.7g of oily dispersion medium into a reaction kettle with shearing and stirring functions, and then adding an ethoxy mixed fatty acid emulsifier OD 18: 15g, modified polycarboxylate dispersant 410: 3g, organic silicon synergist Prime: 5g, nonionic synergist 900: 10g, organic bentonite DK 04: 1g, silicone defoamer SAG 1572: 0.01g, starting shearing and stirring for 5 minutes, finally adding 31.3 g of imidaclothiz original drug (content 96%) in a stirring state, continuing shearing and stirring for 5 minutes until all the materials are uniformly mixed, adding the uniformly mixed materials into a sand mill, and after sanding for 2 hours, detecting that the fineness of the materials reaches D97: and after 5.0 mu m, filtering and discharging, detecting according to the quality standard of the dispersible oil suspending agent, and after the quality is qualified, reaching 30 percent of the imidaclothiz dispersible oil suspending agent.
Comparative example:
41.7 g of imidaclothiz original drug (with the content of 96 percent), 4g of sulfonate formaldehyde condensate, 6g of polycarboxylate dispersant, 20 g of ammonium sulfate and 28.3 g of kaolin (supplemented to 100 percent) are weighed, the materials are added into a conical mixer to be mixed for 30 minutes until the mixture is uniform, then the uniformly mixed material is crushed by an airflow crusher, and the detected material fineness reaches D97: 35 mu m, collecting powder, adding 10g of water, granulating in an extrusion granulator, and drying to obtain the 40% imidaclothiz water dispersible granule.
The performance testing parameters for the insecticides prepared in example 4 and comparative example are shown in tables 1 and 2:
TABLE 1 Performance parameter test results for 20% imidaclothiz dispersible oil suspension prepared in example
Table 2 results of performance parameter test of 40% imidaclothiz water dispersible granule prepared in comparative example
The invention explores the difference of the imidaclothiz dispersible oil suspending agent preparation with different dosage forms and different concentration gradients in the control effect on the plant hoppers in the rice field. The test agent is 20% imidaclothiz dispersible oil suspending agent prepared in example 4, and the control agent is 40% imidaclothiz water dispersible granule prepared in comparative example.
Spraying is adopted for pesticide application in the prime stage of target pest harm. The test is carried out by taking 40% imidaclothiz water dispersible granules as a control agent, wherein 6 agent treatments are arranged in the test, 1 blank control area is arranged, and each treatment is repeated for 2 times. The population base number of the insects is investigated at five points of diagonal lines of each treatment area before pesticide application, 10 crops are investigated at each point, the control effect is investigated once every 3 days, 7 days and 14 days after pesticide application, the number of the live insects is recorded, and the control effect is calculated.
TABLE 3 field test of efficacy of comparative example (40% Loclothianidin water dispersible granule) and examples on rice planthopper
As can be seen from the table 3, the 20% imidaclothiz preparation has obvious control effect on the rice planthopper, the 14d control effect after the pesticide is better than the control effect of 30% imidaclothiz water dispersible granules and obviously better than the control effect of 10% and 40% imidaclothiz water dispersible granules, good insecticidal effect and synergistic effect are shown, the pesticide dosage is reduced, the generation of drug resistance of pests is delayed, and the pesticide is worthy of being popularized and used in agricultural production.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The imidaclothiz dispersible oil type pesticide consists of the following components in percentage by weight: 1-40% of imidaclothiz, 10-20% of emulsifier, 1-10% of dispersant, 0.5-3% of thickener, 0.01-0.05% of defoaming agent and the balance of oily dispersion medium, and is characterized in that: in addition, 10 to 20 percent of composite synergist is added; the composite synergist is selected from nonionic and anionic substances such as organic silicon, fatty alcohol polyoxyethylene, dioctyl sodium sulfosuccinate, isomeric tridecanol polyoxyethylene ether and the like.
2. The imidaclothiz dispersible oil type insecticide of claim 1, wherein: the composite synergist is more than two of any one of a silicone synergist Prime, a nonionic synergist 900, a fatty alcohol polyoxyethylene synergist NP-40, dioctyl sodium sulfosuccinate 3421S, an isomeric tridecanol polyoxyethylene ether synergist 3462 and an anionic synergist 3477.
3. The imidaclothiz dispersible oil type insecticide as claimed in claim 1 or 2, wherein: the composite synergist is a composite of a silicone synergist Prime and a nonionic synergist 900 in a mass ratio of 1: 3; or compounding the fatty alcohol polyoxyethylene synergist NP-40 and the nonionic synergist 900 in a mass ratio of 1: 3; or the composition of the organic silicon synergist and the dioctyl sodium sulfosuccinate synergist in the mass ratio of 1: 10; or the isomeric tridecanol polyoxyethylene ether synergist 3462 and the anion synergist 3477 in the mass ratio of 4: 10.
4. The imidaclothiz dispersible oil type insecticide as claimed in claim 1 or 2, wherein: the dispersant is selected from one or more of types 3498D, D-600, 430 and 410.
5. The imidaclothiz dispersible oil type insecticide as claimed in claim 1 or 2, wherein: the weight ratio of the imidaclothiz is 10-30%.
6. A process for the preparation of a imidaclothiz dispersible oil-type insecticide as claimed in claim 1, comprising the process steps of:
shearing and stirring the emulsifier and the composite synergist at a high speed uniformly, and adding the thickener and the defoamer;
then adding the effective component imidaclothiz for shearing and dispersing again to generate hydrogen bonds or van der Waals force between molecules among the atomic functional groups of the emulsifier, the composite synergist and the imidaclothiz;
then, adding an oily dispersion medium, fully wetting, dispersing and emulsifying the imidaclothiz to form an oily dispersion system;
and finally, moving to a sand mill for wet sanding, and further preventing the imidaclothiz from agglomerating and creaming.
7. The use of the insecticide of claim 1, mainly for the control of pests on crops, including aphids, whiteflies, rice planthoppers, scale insects, tea lesser leafhoppers, thrips, striped rice borers, leaf miners, tea geometrids and the like.
8. Use of a pesticide according to claim 7, characterized in that: preventing and treating rice planthopper and chilo suppressalis in paddy fields.
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| CN202010614576.2A CN111869673A (en) | 2020-06-30 | 2020-06-30 | Imidaclothiz dispersible oil type pesticide, preparation method and application thereof |
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| CN202010614576.2A CN111869673A (en) | 2020-06-30 | 2020-06-30 | Imidaclothiz dispersible oil type pesticide, preparation method and application thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080042907A (en) * | 2005-09-09 | 2008-05-15 | 바이엘 크롭사이언스 아게 | Use of cni-od formulations for controlling whitefly |
| CN109221230A (en) * | 2018-09-20 | 2019-01-18 | 江西中迅农化有限公司 | A kind of insecticide composition containing double third ring worm esters and imidaclothiz |
-
2020
- 2020-06-30 CN CN202010614576.2A patent/CN111869673A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080042907A (en) * | 2005-09-09 | 2008-05-15 | 바이엘 크롭사이언스 아게 | Use of cni-od formulations for controlling whitefly |
| CN109221230A (en) * | 2018-09-20 | 2019-01-18 | 江西中迅农化有限公司 | A kind of insecticide composition containing double third ring worm esters and imidaclothiz |
Non-Patent Citations (1)
| Title |
|---|
| 张连翔等主编: "《北方地区林下经济—可适生性新品种和先进实用技术》", 30 November 2015, 辽宁科学技术出版社 * |
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