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Compound bactericide capable of preventing and controlling grape downy mildew

A compound fungicide, grape downy mildew technology, applied in the direction of fungicide, biocide, biocide, etc., can solve the problems that have not been reported and applied

Inactive Publication Date: 2009-08-19
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are no reports and applications about the compound fungicides of these two types of compounds and their use in the control of grape downy mildew.

Method used

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  • Compound bactericide capable of preventing and controlling grape downy mildew
  • Compound bactericide capable of preventing and controlling grape downy mildew
  • Compound bactericide capable of preventing and controlling grape downy mildew

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The following microemulsions of eugenol and myclobutanil with different contents are all prepared by this method: eugenol and myclobutanil are completely dissolved in a solvent, stirred after the eugenol and myclobutanil are fully dissolved, and emulsifier and antifreeze are added during stirring After the above system is mixed, slowly add water to the above mixture, and after fully stirring, it can be formulated into microemulsions of eugenol and myclobutanil with different contents.

[0024] 12.5% ​​Eugenol Myclobutanil Microemulsion

[0025] Eugenol 10%

[0026] Myclobutanil 2.5%

[0027] Ethanol 15%

[0028] Emulsifier 20%

[0029] Ethylene Glycol 5%

[0030] Water make up to 100%

[0031] 14% Eugenol Myclobutanil Microemulsion

[0032] Eugenol 12%

[0033] Myclobutanil 2.0%

[0034] Ethanol 15%

[0035] Emulsifier 15%

[0036] Ethylene Glycol 5%

[0037] Water make up to 100%

[0038] Microemulsion physicochemical properties and stability in this invent...

Embodiment 2

[0046] Embodiment 2: 12.5% ​​eugenol · myclobutanazole microemulsion, 14% eugenol · myclobutanazole microemulsion, 20% eugenol microemulsion (provided by the Food Quality Safety and Inspection Institute of Jiangsu Academy of Agricultural Sciences), 12.5 % Myclobutanil EC (Shandong Shouguang Shuangxing Pesticide Co., Ltd.) for the bioassay of grape downy mildew.

[0047] The results are shown in Table 1:

[0048] Table 1 Toxicity determination of various preparations against grape downy mildew

[0049] potion Virulence regression equation EC 50 (μg / ml) r Synergistic coefficient SR 20% Eugenol Microemulsion Y=1.6915+1.9800X 46.87 0.9681 / 12.5% ​​Myclobutanil EC Y=4.0875+1.1131X 6.60 0.9757 /

[0050] 12.5% ​​Eugenol Myclobutanil Microemulsion

[0051] Note: SR<0.5 means antagonistic effect, 0.5

Embodiment 3

[0052] Example 3: Field efficacy test of 12.5% ​​eugenol·myclobutanil microemulsion for controlling grape downy mildew

[0053] 1. Selection of test objects, crops and varieties

[0054] Test object: downy mildew Plasmopara viticola.

[0055] Trial crops and varieties: Grapes, Cabernet Sauvignon.

[0056] 2. Pharmacy

[0057]2.1 Test drug

[0058] 12.5% ​​eugenol·myclobutanil microemulsion, provided by Jiangsu Academy of Agricultural Sciences.

[0059] 20% eugenol microemulsion, provided by Jiangsu Academy of Agricultural Sciences.

[0060] 12.5% ​​Myclobutanil EC, commercially available, Shandong Shouguang Shuangxing Pesticide Co., Ltd.

[0061] 2.2 Control drug

[0062] 58% Jinlei water dispersible granules, Swiss Syngenta company product;

[0063] 2.3 Dosage and treatment number

[0064] Table 2 Experimental Design of Drugs to be Tested

[0065] Processing number potion Application dosage (preparation dosage) Application amount (active ingredient amo...

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PUM

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Abstract

The invention discloses a novel disinfectant for controlling downy mildew of grape and a preparation method thereof. The novel disinfectant for controlling downy mildew of grape comprises the following effective compositions: eugenol and myclobutanil. The eugenol and myclobutanil compound disinfectant has obvious synergism, and the product has the advantages of low cost, high safety, long service life, and difficult generation of drug resistance of harmful bacteria, and has wide application prospect.

Description

technical field [0001] The invention relates to a bactericide, in particular to a bactericidal microemulsion with a mixture of eugenol and myclobutanil as an active ingredient and a preparation method thereof, which is used for preventing and treating grape downy mildew. Background technique [0002] Grape downy mildew [Plasmopara viticola (Berk et Curtis) Bert.et de Toni] is a worldwide disease caused by a fungus that originated on wild grapes in eastern North America. In the late 19th century, with the introduction and cultivation of European grapes (Vitis Vinifera) to the world, grape downy mildew spread to all viticultural areas in the world. For example, the earliest invented chemical fungicide Bordeaux mixture was discovered for the occurrence of the disease. It occurs in every grape growing area in my country, and the disease mainly infects the young organs of plants, harming leaves, young shoots and young fruits. If the control is not timely, downy mildew will have ...

Claims

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Application Information

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IPC IPC(8): A01N31/16A01N43/653A01N25/02A01P3/00
Inventor 石志琦王春梅范永坚陈浩
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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