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Agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl

A technology for syringostrobin and pyraclostrobin, which is applied in the field of agricultural bactericidal compositions containing syringostrobin and pyraclostrobin, can solve the problems of reduced fungal control effect, expansion and spread of diseases, single action mechanism, etc., and achieves improved control effect , to avoid reducing the efficacy of the drug, weakening the effect of resistance

Inactive Publication Date: 2013-01-23
JILIN BADA PESTICIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, syringstrobin is a methoxyacrylate compound with a single mechanism of action. Long-term repeated use in field applications may lead to selectivity of fungal strains in many cases, and the strains form adaptive resistance to syringstrobin, resulting in The control effect of syringstrobin against these fungi is reduced or even ineffective, causing the disease to expand and spread, crop yield reduction, and pesticide waste

Method used

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  • Agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl
  • Agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl
  • Agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 An agricultural fungicidal composition containing syringstrobin and kresoxystrobin, containing active components A and B, component A is syringstrobin, component B is kresoxim-methyl, and the weight ratio of A to B is 1:50 ;

[0031] The structural formula of syringstrobin is as follows:

[0032]

[0033] Kresoxim-methyl, chemical name (for: E)-2-methoxyimino-[2-(o-methylphenoxymethyl)phenyl ] methyl acetate, The structural formula is as follows:

[0034]

[0035] An agricultural fungicidal composition containing syringstrobin and kresoxim-methyl of the present invention is prepared by a conventional method, and the two active components A and B are taken according to the above ratio, and mixed-stirred-sheared-grinded to 200 meshes. .

Embodiment 2

[0036] Example 2An agricultural fungicidal composition containing syringstrobin and kresoxystrobin, containing active components A and B, component A is syringstrobin, component B is kresoxim-methyl, and the weight ratio of A to B is 50:1; All the other are with embodiment 1.

Embodiment 3

[0037] Example 3 An agricultural fungicidal composition containing syringstrobin and kresoxystrobin, containing active components A and B, component A is syringstrobin, component B is kresoxim-methyl, and the weight ratio of A to B is 1:20 ; All the other are with embodiment 1.

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Abstract

The invention relates to an agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl. In the composition, the weight ratio of the coumoxystrobin to the kresoxim-methyl is (1:50)-(50:1). Strobilurin formulated bactericide coumoxystrobin is mixed with samilar fungicidal kresoxim-methyl with fungicides having different fungicidal spectrums, the resistance of pathogenic fungi to the coumoxystrobin is weakened, thus, the weakened fungicidal effect is avoided. The disease control effect of the fungicidal composition can be obviously improved because of the synergic effect of the fungicides. The observed fungicidal efficiencies of the fungicidal composition are all higher than the prospective efficiency of the fungicidal efficiency which is calculated by the Colby formula and are averagely higher by 33%. The observed fungicidal efficiencies of the fungicidal composition are respectively higher than the coumoxystrobin by 48.06% and the kresoxim-methyl by 45.75%. The fungicidal compound is produced into a conventional pesticide preparation, is used for preventing various harmful fungi of fruit trees and grains, and has a good effect.

Description

technical field [0001] The invention belongs to the field of agricultural chemical fungicides, and in particular relates to an agricultural fungicidal composition containing syringstrobin and kresoxystrobin. Background technique [0002] I [0003] The Chinese common name of the compound of formula Ⅰ is syringstrobin, and its chemical name is: E )-methyl2-(2-((3-butyl-4-methyl-2-oxo-2 H -chromen-7-yloxy)methyl)phenyl)-3-methoxyacrylate [0004] ( E )-2-(2-((3-Butyl-4-methyl-coumarin-7-yloxy)methyl)phenyl)-3-methoxymethyl acrylate is a highly efficient broad spectrum of agricultural fungicides. It has high antibacterial activity against pathogens such as apple tree rot, rice blast, wheat scab, wheat powdery mildew, etc. (Chinese patent application number 200480020125.5). However, syringstrobin is a methoxyacrylate compound with a single mechanism of action. Long-term repeated use in field applications may lead to selectivity of fungal strains in many cases, and the s...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N37/50A01P3/00
Inventor 孙永吉张荣宝程云鹏
Owner JILIN BADA PESTICIDE
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