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Insecticidal composition containing pirimiphos-methyl and its microcapsule suspension

A technology of pyrimiphos-methyl and an insecticidal composition, which is applied in the directions of insecticides, biocides, animal repellents, etc., can solve the odor of garlic, is difficult to realize the controlled release of microcapsule active ingredients, and cannot be used as a living environment. Hygiene, medication, etc.

Inactive Publication Date: 2015-09-23
南通联农佳田作物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Malathion is an organophosphorus pesticide. The original drug itself has a garlic smell, and the industrial product itself has a strong pungent smell. Therefore, it is generally used in closed barns and cannot be used as a sanitation drug for human settlements.
[0014] In "Research and Application of Pesticides" Year: 2011 Issue Number: Issue 6; Author: Tu Ximao and others published "Research on Preparation of Pirimiphos-Methyl Microcapsule Suspension Concentrate by Complex Aggregation Method", first of all, a pirimiphos-methyl The single-dose preparation adopts the complex coacervation method to prepare the microcapsule suspension. The encapsulating materials are natural wall materials such as gelatin and gum arabic. The function of the active ingredient, because the complex coacervation method is difficult to control in the actual production process, so this method is rarely used in commercial microcapsules, and the preparation is a single preparation

Method used

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  • Insecticidal composition containing pirimiphos-methyl and its microcapsule suspension
  • Insecticidal composition containing pirimiphos-methyl and its microcapsule suspension
  • Insecticidal composition containing pirimiphos-methyl and its microcapsule suspension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Example 1 laboratory activity measurement report:

[0067] Purpose:

[0068] Taking the monochromatic Culex larvae raised in the laboratory as the bioassay target, the toxicity of each single agent and the mixture of pirimiphos-methyl and pyriproxyfen to the monochromatic Culex larvae was determined, and the co-toxicity of the compound mixture was calculated. coefficient to determine the strength of the synergistic effect.

[0069] test methods:

[0070] The larval killing rate of each treatment was measured, and the co-toxicity coefficient of the compound mixture was calculated. Comprehensively analyze the relevant indicators of each treatment, and choose the ratio with strong synergistic effect. Calculate the LC50 by immersing mosquito larvae in different liquids for 24 hours.

[0071] 1. Test materials: Test equipment: several 50ml volumetric flasks for diluting medicinal liquid, several adjustable pipettes, several beakers of various specifications, and several ...

Embodiment 2

[0082] Example 2 laboratory activity assay report:

[0083] Indoor drug efficacy test for mosquito and fly control; test targets: Culex papillosa, female adults who have not sucked blood from the 3rd to 5th day after eclosion; Musca domestica, adults from the 3rd to 4th day after eclosion, half female and half male ;Test method: Refer to GB T13917.10-2009, hanging cage test; Experimental treatment: Dilute the preparation to the same concentration.

[0084] The test results show that: the single-dose EC of control samples 9 and 10 is not as effective as the compound samples of 1-8 in terms of knockdown effect against mosquitoes and flies, but the compound samples of pirimiphos-methyl and pyriproxyfen are effective against mosquitoes and flies. Knockdown works well, and it also has a good lethal rate.

[0085]

[0086]

[0087] From the results of the data, it can be seen that the 24-hour lethality control effect of pirimiphos-methyl and pyriproxyfen on mosquitoes and fli...

Embodiment 3

[0094] Active ingredient A pyrimiphos-methyl 30g, active ingredient B pyrimiphos-methyl 0.6g was added to solvent 2.5g turpentine vegetable oil and stirred evenly, then added emulsifier polyoxyethylene lauryl ether 2g, attractant fatty acid glyceride 0.1g and stirred evenly to obtain Oil phase; antifreeze agent glycerin 3g, stabilizer potassium dihydrogen phosphate 0.2g, encapsulating prepolymer formaldehyde-urea prepolymer 10g are added to water (water is replenished to 100g) and stirred evenly to obtain the water phase; oil, Preheat the water to 60°C, then pour the oil phase into the water phase and turn on the high-speed emulsification, wait until the emulsion is stable, add dilute hydrochloric acid in batches to adjust the pH=2.5 to undergo polycondensation reaction, keep the temperature for 4 hours, and then add the dispersant lignin Sodium sulfonate 6g, thickening agent carrageenan 0.2% g, preservative sodium benzoate 0.2% were added and stirred evenly, and the modified e...

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PUM

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Abstract

The invention provides an insecticide composition containing pirimiphos-methyl and a micro-capsule suspending agent thereof. The insecticide composition comprises a component A and a component B, wherein the component A is the pirimiphos-methyl; the component B is selected from one of pyriproxyfen, chlorbenzuron, diflubenzuron and triflumuron; the mass ratio of the component A to the component B ranges from (100:1)-(2:1), most preferably 50:1; the highest cotoxicity coefficient is 224.1 and the insecticidal efficacy is optimal. The invention provides the insecticide composition containing pirimiphos-methyl and the micro-capsule suspending agent thereof; the organic phosphorus type efficient, low-toxin and wide-spectrum pirimiphos-methyl and insect growth regulators (juvenile hormone types) including the low-toxin compounds of the pyriproxyfen, the chlorbenzuron, the diflubenzuron and the triflumuron are compounded so as to effectively delay the drug resistance caused by sanitary insect pests such as cockroaches, mosquitoes and flies; the effects of killing imagoes and larvae can also be realized.

Description

technical field [0001] The invention relates to a compounded pesticide composition and the field of pesticide processing, in particular to an insecticidal composition compounded with pirimiphos-methyl and an insect growth regulator and a microcapsule suspension thereof, which are applied to hygienic insecticides field. Background technique [0002] Sanitation pests refer to all arthropods that can cause direct or indirect harm to human health and affect people's normal life, including two categories: insects and arachnids. Mosquitoes, flies, cockroaches (cockroaches), termites, fleas, and bedbugs all belong to the class Insecta. The main hazards of sanitation pests are blood-sucking harassment and parasitism, and some types of sanitation pests are the vectors of certain infectious diseases in humans, which are very harmful to people's health. Once an outbreak occurs, it is easy to form an epidemic. [0003] Pirimiphos-methyl. Chemical name: O-O-dimethyl-O-(2-diethylamino-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/16A01N25/28A01N25/04A01P7/04A01P21/00A01N43/40A01N47/34
Inventor 曹雄飞仲苏林曹新梅吴建兰胥亚云章东生
Owner 南通联农佳田作物科技有限公司
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