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Bactericidal composition containing captan and cymoxanil and preparation method thereof

The technology of a composition and captan, which is applied in the field of fungicide preparation, can solve the problems of mediocre bactericidal effect, affected crop harvest, long effective time, etc.

Pending Publication Date: 2021-12-10
毅植农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a fungicidal composition containing captan and cymoxanil and a preparation method thereof. The fungicidal effect of the fungicidal composition at the present stage is generally solved by a fungicidal enhancer, and the crop yield is affected due to a long effective time. question

Method used

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  • Bactericidal composition containing captan and cymoxanil and preparation method thereof
  • Bactericidal composition containing captan and cymoxanil and preparation method thereof
  • Bactericidal composition containing captan and cymoxanil and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] A bactericidal composition containing captan and cymoxanil, the bactericidal composition includes the following raw materials in parts by weight: 1 part of captan, 90 parts of cyanazazole, 20 parts of bactericidal enhancer, and the balance is auxiliary components;

[0034] The preparation method of this pesticide composition specifically comprises the steps:

[0035] The above raw materials are weighed, mixed evenly, and according to the dosage form, a bactericidal composition suspension is prepared.

[0036] Wherein, the bactericidal enhancer is made by the following steps:

[0037] Step A1: Mix 2-chloro-4-nitrophenylacetic acid, copper chloride, and sodium hydroxide aqueous solution evenly, then stir and reflux for 5 hours under the conditions of rotating speed of 150r / min and temperature of 160°C to obtain intermediate Body 1, mix intermediate 1, toluene, and p-toluenesulfonic acid evenly, at a temperature of 120°C, reflux for 3 hours, then add aluminum trichloride ...

Embodiment 2

[0042] A bactericidal composition containing captan and cymoxanil, the bactericidal composition includes the following raw materials in parts by weight: 45 parts of captan, 45 parts of cyanazazole, 23 parts of bactericidal enhancer, and the balance is auxiliary components;

[0043] The preparation method of this pesticide composition specifically comprises the steps:

[0044] The above raw materials are weighed, mixed evenly, and according to the dosage form, water-dispersible granules of the fungicidal composition are obtained.

[0045] Wherein, the bactericidal enhancer is made by the following steps:

[0046] Step A1: Mix 2-chloro-4-nitrophenylacetic acid, copper chloride, and sodium hydroxide aqueous solution evenly, then stir and reflux for 6 hours under the conditions of rotation speed of 180r / min and temperature of 170°C to obtain intermediate Body 1, mix intermediate 1, toluene, and p-toluenesulfonic acid evenly, and react under reflux for 4 hours at a temperature of ...

Embodiment 3

[0051] A bactericidal composition containing captan and cymoxanil, the bactericidal composition includes the following raw materials in parts by weight: 90 parts of captan, 1 part of cyanazazole, 25 parts of bactericidal enhancer, and the balance is auxiliary components;

[0052] The preparation method of this pesticide composition specifically comprises the steps:

[0053] The above raw materials are weighed, mixed evenly, and according to the dosage form, a wettable powder of the fungicidal composition is obtained.

[0054] Wherein, the bactericidal enhancer is made by the following steps:

[0055] Step A1: Mix 2-chloro-4-nitrophenylacetic acid, copper chloride, and sodium hydroxide aqueous solution evenly, then stir and reflux for 7 hours at a rotation speed of 200r / min and a temperature of 180°C to obtain intermediate Body 1, mix intermediate 1, toluene, and p-toluenesulfonic acid evenly, at a temperature of 130°C, reflux for 5 hours, then add aluminum trichloride and tri...

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Abstract

The invention discloses a bactericidal composition containing captan and cymoxanil and a preparation method thereof. The bactericidal composition is prepared from the following raw materials in parts by weight: 1 to 90 parts of captan, 1 to 90 parts of cymoxanil, 20 to 25 parts of bactericidal enhancer and the balance of auxiliary components, wherein the chitosan on the bactericidal synergist can increase the absorption efficiency of bacteria to bactericidal components in the bactericidal composition, and meanwhile, the synergist can inhibit mitochondrial respiration through electron transfer between cytochrome b and cytochrome C1, so that spore germination and hypha growth are inhibited, the effect of killing bacteria is achieved, and the antibacterial effect of thebactericidal composition is further improved; the sterilization synergist contains the isothiocyanate group, and the isothiocyanate group further inhibits spore germination and hypha growth, such that the prepared bactericidal composition has the good antibacterial effect.

Description

technical field [0001] The invention relates to the technical field of fungicide preparation, in particular to a fungicide composition containing captan and cymoxanil and a preparation method thereof. Background technique [0002] Cymoxanil is a high-efficiency, low-toxic fungicide, used in cucumbers, grapes, tomatoes, lychees, giant cabbage and other cruciferous vegetables and tobacco crops to prevent and control crop diseases caused by oomycete pathogens, causing crop diseases The oomycete pathogens mainly include Pythium, Phytophthora, Phytophthora, Peronospermum, Peronospora, Plasmodium, Pseudoperonospora, and Discophagus and other important groups; [0003] Captan, chemical name: N-trichloromethylthio-1,2,3,6-tetrahydrophthalimide, Captan is a broad-spectrum low-toxic fungicide, mainly for protection , and has a certain therapeutic effect, and can prevent and control various crop diseases on fruit trees and vegetable crops, such as pear tree scab, grape downy mildew, t...

Claims

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Application Information

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IPC IPC(8): A01N47/04A01N47/34A01N47/48A01P1/00A01P3/00
CPCA01N47/04A01N47/34A01N47/48
Inventor 彭成洲戴权周学强
Owner 毅植农业科技有限公司
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