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Fluopyram-containing bactericidal composition

A composition, myclobutanil technology, applied in the directions of fungicides, biocides, biocides, etc., can solve problems such as no therapeutic effect, and achieve the effects of reducing drug dosage, reducing pollution, and reducing the risk of phytotoxicity

Inactive Publication Date: 2011-02-02
HAILIR PESTICIDES & CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tricyclazole is currently the main agent for the prevention and treatment of rice blast in my country. Although studies have shown that the risk of rice blast resistance to tricyclazole is relatively low, there is a major shortcoming of this agent: it has only protective effect and no therapeutic effect, that is, it can only Use before rice blast infestation occurs
And the combination of fluopyram and any bactericidal active ingredient selected from triazoles (difenoconazole, hexaconazole, myclobutanil, tricyclazole) and mancozeb is currently in There are no relevant reports at home and abroad

Method used

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  • Fluopyram-containing bactericidal composition
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  • Fluopyram-containing bactericidal composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] Biological Assay Example 1: Indoor Toxicity Test of Fluopyram and Difenoconazole Compound to Cucumber Powdery Mildew.

[0038] Drug solution preparation for single-dose toxicity test: Fluopyram and difenoconazole were dissolved in acetone as a solvent to prepare a 10,000 μg / ml mother solution, and stored at 4°C until use.

[0039] Mixing combination settings: 55% fluopyram·difenoconazole mass ratios are 4.58%+50.42%, 5.5%+49.5%, 9.17%+45.83%, 13.75%+41.25% and 27.5%+27.5% A total of 5 mixed combinations.

[0040] On the basis of the preliminary test, the toxicity of a single dose of fluopyram and difenoconazole was determined by the above method, and the EC 50 The values ​​were 1.6 mg / l and 3.5 mg / l, respectively.

[0041] Toxicity test results and analysis:

[0042] Table 1 Toxicity of mixtures of fluopyram and difenoconazole with different ratios to cucumber powdery mildew

[0043]

[0044]

[0045] Table 2 Combined toxicity of fluopyram and difenoconazole c...

example 2

[0048] Biological Assay Example 2: Indoor Toxicity Test of Fluopyram and Hexaconazole Compound to Cucumber Powdery Mildew.

[0049] Preparation of drug solution for single-dose toxicity test: Dissolve fluopyram and hexaconazole in acetone as a solvent to prepare a 10,000 μg / ml mother solution, store at 4°C until use.

[0050] Mixing combination settings: 56% fluopyram·hexaconazole mass ratios were 4.7%+51.3%, 5.6%+50.4%, 9.3%+46.7%, 14%+42% and 28%+28%, a total of 5 a mixed combination.

[0051] On the basis of the preliminary test, the toxicity of a single dose of fluopyram and hexaconazole was determined by the above method, and the EC 50 Values ​​were 1.5mg / l and 5.6mg / l

[0052] Toxicity test results and analysis:

[0053] Table 3 Toxicity and synergistic effect of different proportions of fluopyram and hexaconazole mixture on cucumber powdery mildew

[0054]

[0055] Table 4 Combined toxicity of fluopyram and hexaconazole compound against cucumber powdery mildew

...

example 3

[0059] Biological Assay Example 3: Indoor Toxicity Test of Fluopyram and Myclobutanazole on Cucumber Powdery Mildew.

[0060] Preparation of drug solution for single-dose toxicity test: Dissolve fluopyram and myclobutanil in acetone as a solvent to prepare a 10000 μg / ml mother solution, store at 4°C until use.

[0061] Mixing combination settings: 56% fluopyram·myclobutanil mass ratios are 4.7%+51.3%, 5.6%+50.4%, 9.3%+46.7%, 14%+42% and 28%+28%, a total of 5 a mixed combination.

[0062] On the basis of the preliminary test, the toxicity of a single dose of fluopyram and myclobutanil were determined by the above method, and the EC of the two 50 The values ​​were 1.9mg / l and 7.5mg / l, respectively.

[0063] Toxicity test results and analysis:

[0064] Table 5 Toxicity and synergistic effect of mixtures of fluopyram and myclobutanil with different ratios on cucumber powdery mildew

[0065]

[0066] Table 6 Combined toxicity of fluopyram and myclobutanil against cucumber po...

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Abstract

The invention relates to a bactericidal composition in the field of pesticide compounding. The active ingredients of the bactericidal composition are (A) fluopyram and (B) any one of bactericidal active ingredients, namely difenoconazole, hexaconazole, myclobutanil, tricyclazole and mancozeb, wherein the weight percentage ratio of the two active ingredients is 70-1:1-70, preferably 30-5:30-60. The active ingredients account for 5 to 90 percent, preferably 40 to 70 percent of the total mass of the bactericidal composition preparation, and the balance is auxiliary ingredients allowable and acceptable in a pesticide. A known method can be used for preparing wettable powder, cream, suspending agents, water dispersible granules, emulsion in water or microemulsion. The bactericidal composition can be used for preventing and controlling various diseases such as powdery mildew, downy mildew, rust disease, leaf spot disease, venturia inaequalis, rot and the like of crops such as vegetables and wheat and fruit trees.

Description

technical field [0001] The present invention relates to a synergistic bactericidal pesticide composition, in particular to a composition comprising fluopyram and any one selected from difenoconazole, hexaconazole, myclobutanil, tricyclazole and mancozeb A synergistic bactericidal composition compounded with bactericidal active ingredients. Background technique [0002] Fluopyram, English common name fluopyram, chemical name is N-{2-[3-chloro-5-(trifluoromethyl)-2-pyridyl]ethyl-α,α,α-trifluoro-O -Toluamide}, a novel benzamide fungicide, inhibits mitochondrial respiration by blocking the electron transfer of succinate dehydrogenase in the respiratory chain. It is mainly used to control diseases caused by cyst fungi on broad-leaved crops. It has a good control effect on downy mildew and powdery mildew on vegetables such as cucumbers and zucchini, downy mildew on fruit trees and other diseases caused by pathogens. Its chemical structural formula is: [0003] [0004] Dife...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01P3/00A01N43/40A01N43/653A01N43/90A01N47/14
Inventor 葛尧伦张珊珊杜秀斌
Owner HAILIR PESTICIDES & CHEM GRP
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