Antibacterial composition containing tetraconazole and pyraclostrobin

A technology of tetrafluoroconazole and pyraclostrobin, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of pyraclostrobin's quick-acting effect and poor stability, and achieves the reduction of pesticide usage, The effect of stable effect and reduction of agricultural cost

Inactive Publication Date: 2011-11-23
QINGDAO KYX CHEMICAL CO LTD
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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 bactericidal composition that can well solve the problems of pyraclostrobin quick-acting and low stability. The R&D personnel of our company have found through a large number of indoor and outdoor formula screening tests that the unique mechanism of action of azole The combination of clostrobin and tetraflumezole with stable effect and good systemic absorption has unexpected synergistic effect, which can well solve the problems of quick-acting and stability of pyraclostrobin and the resistance of tetraflumezole problem, and can better promote the absorption of nitrogen, enhance the resistance of crops, improve the quality of crops, and then complete the present invention

Method used

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  • Antibacterial composition containing tetraconazole and pyraclostrobin
  • Antibacterial composition containing tetraconazole and pyraclostrobin
  • Antibacterial composition containing tetraconazole and pyraclostrobin

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0041] (1) Experimental object:

[0042]Cucumber powdery mildew pathogen was isolated and purified from cucumber powdery mildew-infected leaves in Shandong Shouguang cucumber greenhouse, cultured and preserved on PDA slant in 4°C refrigerator.

[0043] Test medium:

[0044] PDA medium: potato 200g, glucose 20g, agar 20g, water 1000ml.

[0045] AEA medium: yeast powder 5g / L, glycerol 20mL / L, MgSO 4 0.25g / L, NaNO 3 6g / L, KCl 0.5g / L, KH 2 PO 4 1.5g / L, agar powder 20g / L, deionized water 1L.

[0046] (2) Experimental medicine:

[0047] 94% Tefluconazole technical, Italy SEG company, 95% pyraclostrobin technical, BASF Europe.

[0048] Mix and match settings:

[0049] The content percentages of 14% tetraflumezole pyraclostrobin are 1:13, 3:11, 5:9, 7:7, 9:5, that is, 1%+13%, 3%+11%, 5% +9%, 7%+7%, 9%+5%, a total of 5 mixing combinations.

[0050] (3) Test method:

[0051] Toxicity determination of single agent against cucumber powdery mildew:

[0052] Tefluconazole and py...

example 2

[0070] Biological Assay Example 2: Indoor Toxicity Test of Tefluconazole and Pyraclostrobin Compound on Cucumber Downy Mildew.

[0071] Cucumber downy mildew, isolated and purified from the diseased leaves of cucumbers in the field, was cultured and preserved on a PDA slope at 4°C in a refrigerator.

[0072] Toxicity assays for single doses of tetrafluconazole and pyraclostrobin, EC 50 The values ​​were 4.13 mg / l and 7.29 mg / l, respectively.

[0073] Mix and match settings:

[0074] The content percentages of 15% tetraflumezole pyraclostrobin are 2:13, 4:11, 6:9, 8:7, 10:5, namely 2%+13%, 4%+11%, 6% +9%, 8%+7%, 10%+5%, a total of 5 mixing combinations.

[0075] Test method is the same as biological assay embodiment 1

[0076] Experimental results and analysis:

[0077] Table 3 Toxicity test of tetrafluconazole and pyraclostrobin compound against cucumber downy mildew

[0078]

[0079]

[0080] Table 4 Combined toxicity test of tetrafluconazole and pyraclostrobin co...

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Abstract

The invention relates to an antibacterial composition, which belongs to the field of agricultural compounds. The antibacterial composition is prepared by mixing tetraconazole and pyraclostrobin, which serve as active ingredients, in a weight percentage ratio ranging from 80:1 to 1:80, preferably a weight percentage ratio ranging from 65:5 to 1:50; and the total active ingredients account for 1 to 90 percent, preferably 5 to 50 percent of the weight of the antibacterial composition, and auxiliary ingredients which are allowed to be used and acceptable in pesticide account for the balance. The antibacterial composition can be prepared into wettable powder, suspension, emulsified oil, soluble liquid, aqueous emulsion and water dispersible agent by the conventional method. The antibacterial composition disclosed by the invention is mainly used for preventing and controlling diseases caused by bacteria of Erysiphe, Puccinia, Rhynchosporium spp., Pyrenophora and Septoria.

Description

technical field [0001] The invention relates to the technical field of pesticide compounding, in particular to a bactericidal composition compounded with tetrafluconazole and pyraclostrobin as active ingredients. Background technique [0002] Pyraclostrobin (also known as pyraclostrobin), the English name is pyraclostrobin, and the chemical name is 2-chloro-N-(4'-chlorobiphenyl-2-yl) nicotinamide. It is a new type of broad-spectrum fungicide, which has protective, therapeutic and radical effects. It has a strong control effect on powdery mildew, downy mildew, scab, leaf spot, blight and other diseases of melons and vegetables, and has a long lasting effect. , It is safe for crops at the recommended dose, can promote nitrogen absorption, enhance crop resistance, and improve crop quality. Its chemical structural formula is: [0003] [0004] Tefluconazole belongs to the triazole fungicides. It is a low-toxic, high-efficiency, and widely used environmentally friendly new p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N43/653A01P3/00
Inventor 葛尧伦杨波涛葛大鹏韩先正杜秀斌
Owner QINGDAO KYX CHEMICAL CO LTD
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