Bactericide composition containing pyraclostrobin and mancozeb

A bactericide composition and a technology for pyraclostrobin, applied in the field of pesticides, can solve the problems of affecting the bacteriostasis control effect of pyraclostrobin, the effect of the control effect being greatly different, affecting the efficacy of drugs and the like

Pending Publication Date: 2020-06-26
SHANGHAI YUELIAN BIOLOGICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the long-term use of a single pyraclostrobin fungicide component, the bacteria develop resistance to it, which seriously affects the antibacterial control effect of pyraclostrobin
In addition, there are still some problems in the stability of the existing fungicidal drugs compounded with pyraclostrobin and other ingredients, which may easily cause instability and affect the efficacy of the drug, especially when the climate changes frequently. The results obtained in laboratory experiments are quite different

Method used

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  • Bactericide composition containing pyraclostrobin and mancozeb
  • Bactericide composition containing pyraclostrobin and mancozeb
  • Bactericide composition containing pyraclostrobin and mancozeb

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preparation example Construction

[0041] In some embodiments, the preparation method of the dispersible oil suspension concentrate comprises the steps of:

[0042] Add dispersion medium, stabilizer, alkoxylated tallow alcohol and polyether modified siloxane into the reaction kettle, mix and disperse; add pyraclostrobin and mancozeb original drug, The thickener and antifreeze are obtained by grinding with a sand mill until the particle size is less than 5 microns.

[0043] Preferably, the dispersible oil suspension is prepared by grinding with a sand mill until the particle size is less than 1 micron.

[0044] The dispersion medium is the solvent, including but not limited to methyl oleate or soybean oil.

[0045] In some embodiments, the weight ratio of the alkoxylated tallow alcohol to the polyether-modified siloxane is (1:4) to (4:1); preferably, the alkoxylated tallow alcohol and The weight ratio of polyether modified siloxane is 2:3.

[0046] Second aspect of the present invention provides the using met...

Embodiment 1

[0054] Embodiment 1 provides a kind of dispersible oil suspension concentrate, comprises the fungicide composition containing pyraclostrobin and mancozeb.

[0055] The preparation method of described dispersible oil suspension concentrate comprises the steps:

[0056] Add 2wt% castor oil polyoxyethylene ether, 5wt% alkoxylated tallow alcohol and 7wt% polyether modified siloxane into the reaction kettle, mix and disperse; The ester, 25wt% of mancozeb technical product, 3wt% of bentonite, 2wt% of ethylene glycol and the rest of methyl oleate are ground until the particle size is less than 3 microns.

[0057] Wherein the preparation method of polyether modified siloxane comprises the steps:

[0058] 1) Add 100g of octamethylcyclotetrasiloxane, 7.2g of hexamethyldisiloxane, 28.5g of high hydrogen-containing silicone oil with a hydrogen content of 1.56%, and 6g of acid clay into the reaction kettle, and heat to 60°C for reaction 4 hours to obtain low hydrogen silicone oil with a ...

Embodiment 2

[0060] Embodiment 2 provides a kind of dispersible oil suspension concentrate, including the fungicide composition containing pyraclostrobin and mancozeb.

[0061] The preparation method of described dispersible oil suspension concentrate comprises the steps:

[0062] Add 2wt% castor oil polyoxyethylene ether, 8wt% alkoxylated tallow alcohol and 4wt% polyether modified siloxane into the reaction kettle, mix and disperse; The ester, 35wt% of mancozeb technical product, 3wt% of bentonite, 2wt% of ethylene glycol and the rest of methyl oleate are ground until the particle size is less than 3 microns.

[0063] Wherein the polyether modified siloxane is the same as that in Example 1.

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Abstract

The invention relates to the technical field of pesticides, particularly to a bactericide composition containing pyraclostrobin and mancozeb, wherein the weight percentage of pyraclostrobin in the composition accounts for 3%-15% of the weight percentage of the bactericide composition, the weight percentage of mancozeb accounts for 20-75% of the weight percentage of the bactericide composition, andthe bactericide composition also comprises alkoxylated tallow alcohol.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a fungicide composition containing pyraclostrobin and mancozeb. Background technique [0002] Pyraclostrobin, also known as pyraclostrobin, is mainly used for various crops such as wheat, peanuts, rice, vegetables, fruit trees, tobacco, tea trees, ornamental plants, lawns, etc., to prevent and control ascomycetes, basidiomycetes, deuteromycetes and eggs Leaf blight, rust, powdery mildew, downy mildew, blight, anthracnose, scab, brown spot, blight and other diseases caused by fungi of the class Fungi. It has good effects on cucumber powdery mildew, downy mildew, banana scab, leaf spot, grape downy mildew, anthracnose, powdery mildew, early blight, late blight, powdery mildew and leaf blight of tomato and potato Control effect. It can control most diseases such as Ascomycetes, Basidiomycetes, Deuteromycetes and Oomycetes. It has a strong inhibitory effect on spore germination...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N47/14A01P3/00
CPCA01N47/14A01N47/24
Inventor 余徳勉陈恒坚王陈杰王丹斌张常庆侯影宋怀挺
Owner SHANGHAI YUELIAN BIOLOGICAL TECH
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