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Bactericidal composition containing captan

A technology containing captan and composition, which is applied in the field of pesticides and can solve problems such as unfavorable environmental sustainable development, increased dosage of pesticides, and drug resistance of diseases

Active Publication Date: 2011-08-17
陕西亿田丰作物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Long-term use of a single dose of captan can easily lead to drug resistance in diseases, leading to problems such as increased dosage, reduced control effect, and shortened duration, which is not conducive to sustainable development of the environment

Method used

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  • Bactericidal composition containing captan
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  • Bactericidal composition containing captan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0201] Embodiment 1: captan, propamocarb (or propamocarb hydrochloride) and its mixed use are to the toxicity determination of cucumber downy mildew

[0202] Propamocarb (or propamocarb hydrochloride) is referred to as propamocarb or its salt;

[0203] Table 1 Carben, propamocarb (or propamocarb hydrochloride) and their mixed use to the analysis table of the toxicity determination results of cucumber downy mildew

[0204]

[0205] It can be seen from Table 1 that the EC of captan, propamocarb or its salts to cucumber downy mildew pathogen 50 They are 0.980mg / mL and 0.900mg / mL respectively. The toxicity of propamocarb or its salt is higher than that of captan. The synergistic ratios of captan and propamocarb or its salt ratio from 39:1 to 1:39 are all greater than 1.5, showing a synergistic effect, especially when the ratio of captan to propamocarb or its salt is 8: From 1 to 1:16, the synergistic effect is most obvious.

Embodiment 2

[0206] Example 2: Toxicity determination of captan, cyafamid and their mixture to cucumber downy mildew

[0207] Table 2 The analysis table of the toxicity determination results of Carbend, Cyazofamid and their mixture to cucumber downy mildew

[0208]

[0209] It can be known from Table 2 that the EC of captan and cyanazazole against cucumber downy mildew 50 They are 0.980mg / mL and 0.120mg / mL respectively. The toxicity of Cyazofim was significantly higher than that of Captan. The synergistic ratio of Captan and Cyazofazol from 39:1 to 1:39 is all greater than 1.5, showing a synergistic effect, especially when the ratio of Captan to Cyazofazol is from 1:1 to 16:1 , the synergistic effect is most obvious.

Embodiment 3

[0210] Example 3: Toxicity determination of captan, oxaxyl and their mixture on cucumber downy mildew

[0211] Table 3 Analysis table of the toxicity determination results of Kebtan, oxaxyl and their mixture to cucumber downy mildew

[0212]

[0213] It can be seen from Table 3 that the EC of captan and oxaxyl against cucumber downy mildew pathogen 50 They are 0.980mg / mL and 0.260mg / mL respectively. The toxicity of oxaxyl was significantly higher than that of captan. The synergistic ratios of captan and oxaxyl in the ratio of 39:1 to 1:39 are all greater than 1.5, showing a synergistic effect, especially when the ratio of captan and oxaxyl is in the range of 1:4 to 8:1 , the synergistic effect is most obvious.

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Abstract

The invention provides a captan bactericidal composition, the composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is captan, the active ingredient B is selected from one of propamocarb (or propamocarb hydrochloride), cyazofamid, oxadixyl, cymoxanil, metalaxyl (metalaxyl-M), iprovalicarb, fosetyl-aluminum, dimethomorph and dithianon, and the bactericidal composition contains the following ingredients by weight percent: 2-78% of the active ingredient A, namely the captan, 2-78% of the active ingredient B, namely the propamocarb (or the propamocarb hydrochloride), the cyazofamid, the oxadixyl, the cymoxanil, the metalaxyl (metalaxyl-M), the iprovalicarb, the fosetyl-aluminum, the dimethomorph or the dithianon, and the balance of additives and excipients. The bactericidal composition containing the captan and the medicament can effectively reduce the using amount of pesticide, reduce the amount of residue of the pesticide on crops, reduce the environmental pollution and defer the generation of medicament resistance, and is further safe for human and animal and good in environmental compatibility.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a binary mixed bactericidal composition containing captan, which is used for preventing and treating vegetable downy mildew, vegetable blight, banana leaf spot and pear scab. technical background [0002] Captan (captan), molecular formula: C 9 h 8 C 13 NO 2 S, chemical name: 3a,4,7,7a-tetrahydro-2-(trichloromethylthio)-1Hisoindole-1,3-(2H)-dione. Captan is an organosulfur fungicide with both protective and therapeutic effects. Its mechanism of action is mainly to affect the metabolism of pyruvate in pathogens, and it has obvious inhibitory effect on various enzymes. It can also reduce the content of adenosine triphosphate in pathogens to prevent the release of conidia of pathogens. [0003] Long-term use of a single dose of captan can easily lead to drug resistance in diseases, leading to problems such as increased dosage, reduced control effect, and shortene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/12A01N47/04A01N43/50A01N43/76A01N47/34A01N37/46A01N57/12A01N43/84A01N43/32A01P3/00
Inventor 张伟曹巧利高超
Owner 陕西亿田丰作物科技有限公司
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