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Tetramycin and pyraoxystrobin-containing bactericidal composition and application thereof

A composition, pyraclostrobin technology, is applied in the field of fungicidal compositions containing tetramycin and pyraclostrobin, which can solve problems such as unsatisfactory control effects, difficult disease control, and increased resistance of pathogenic bacteria, and achieve less dosage , not easy to produce resistance, long-lasting effect

Inactive Publication Date: 2018-11-23
江西正邦作物保护股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In recent years, the occurrence of bacterial and fungal diseases on crops has shown an obvious upward trend, and the difficulty of disease control has become more and more difficult. The planting structure has changed, the resistance of pathogenic bacteria has increased, and the control effect of single agents is not satisfactory, and The abuse of pesticides has put forward new requirements for the selection of disease control agents, and the control of plant diseases is facing huge challenges

Method used

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  • Tetramycin and pyraoxystrobin-containing bactericidal composition and application thereof
  • Tetramycin and pyraoxystrobin-containing bactericidal composition and application thereof
  • Tetramycin and pyraoxystrobin-containing bactericidal composition and application thereof

Examples

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Effect test

Embodiment 1 4

[0022] Example 1 Indoor Toxicity Measurement of Tetramycin and Pyclostrobin Compounded to Cucumber Downy Mildew

[0023] Determination method of indoor antibacterial effect: The growth rate method is used to determine the inhibitory effect of the fungicidal composition on cucumber downy mildew. Take mycelia pieces with a diameter of 5 mm from the edge of wheat sheath blight colonies cultured on PDA medium for 4 days and inoculate them on PDA medium plates containing different concentrations of fungicides, culture at a constant temperature at 28°C, and use the plates without agents as blank As a control, measure the colony diameter of each treatment after 4 days, and calculate the inhibitory percentage of the medicament to mycelial growth. Through the regression analysis of the logarithm of each treatment dose and the probability value of mycelial growth inhibition rate, the inhibitory medium concentration (EC) of the treatment fungicide to cucumber downy mildew was calculated....

Embodiment 2 4

[0031] Example 2 Indoor Toxicity Measurement of Tetramycin and Pyclostrobin Compounded to Rice Blast

[0032] Determination method of indoor antibacterial effect: The growth rate method is used to determine the inhibitory effect of the fungicidal composition on rice blast fungus. Take mycelium blocks with a diameter of 5 mm from the edge of the wheat root rot colony cultured on PDA medium for 4 days and inoculate them on PDA medium plates containing different concentrations of fungicides, and culture them at a constant temperature at 28°C. As a control, measure the colony diameter of each treatment after 4 days, and calculate the inhibitory percentage of the medicament to mycelial growth. The logarithm of each treatment dose and the probability value of mycelial growth inhibition rate were used for regression analysis to calculate the inhibitory medium concentration (EC) of fungicides to rice blast. 50 ), and then calculate the co-toxicity coefficient (CTC) according to Sun Y...

Embodiment 3

[0041] Example 3 Indoor Toxicity Measurement of Tetramycin and Pyrastrostrobin Compounded to Wheat Scab

[0042] Determination method of indoor antibacterial effect: The growth rate method is used to determine the inhibitory effect of the fungicidal composition on wheat head blight. Take mycelium blocks with a diameter of 5 mm from the edge of the wheat root rot colony cultured on PDA medium for 4 days and inoculate them on PDA medium plates containing different concentrations of fungicides, and culture them at a constant temperature at 28°C. As a control, measure the colony diameter of each treatment after 4 days, and calculate the inhibitory percentage of the medicament to mycelial growth. Through the regression analysis of the logarithm of each treatment dose and the probability value of mycelial growth inhibition rate, the inhibitory medium concentration (EC) of the treatment fungicide to wheat head blight was calculated. 50 ), and then calculate the co-toxicity coefficient...

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Abstract

The invention discloses a tetramycin and pyraoxystrobin-containing bactericidal composition and application thereof. The tetramycin and pyraoxystrobin-containing bactericidal composition comprises aneffective amount of tetramycin and pyraoxystrobin, and further comprises a conventional auxiliary component, wherein the weight ratio of tetrazomycin to pyraoxystrobin is (1 to 80) to (1 to 80). The bactericidal composition prepared by the invention can be applied to prevent and treat various bacterial and fungal diseases of fruit trees, vegetables and cereal crops, especially to prevent and treatcitrus cucumber downy mildew, rice blast, wheat scab, and has the advantages of having an obvious synergistic effect, delaying the drug resistance of pathogenic bacteria, having a long-lasting effect, reducing the number of drug administration and dosage, and reducing the service cost.

Description

technical field [0001] The invention relates to the field of agricultural disease prevention and control, in particular to a fungicidal composition containing tetramycin and pyraclostrobin and application thereof. Background technique [0002] Tetramycin (tetramycin) is a biological pesticide produced by Streptomycesa hygroscopicus subsp.Wuzhouensis n.subsp through submerged fermentation of strains. It induces crop resistance by inhibiting the growth of hyphae, and Promote the growth of crops, so as to achieve the purpose of prevention and control, suitable for the prevention and control of various fungal and bacterial diseases of various forest trees. [0003] Pyraoxystrobin (pyraoxystrobin), the chemical name is (E)-2-[2-[[3-(4-chlorophenyl)-1-methyl-1H-pyrazole-5-oxyl]methyl]benzene Base]-3-methoxymethyl acrylate, a broad-spectrum fungicide created and developed by Shenyang Research Institute of Chemical Industry. Its mechanism of action is to inhibit the electron trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/56A01P3/00
CPCA01N43/56A01N43/90
Inventor 李思源谢远芳代新红周蕲李扬
Owner 江西正邦作物保护股份有限公司