Bactericidal composition containing pyraclostrobin and metiram and preparation method of bactericidal composition

A technology of pyraclostrobin and disenlian, which is applied in the field of pesticides, can solve the problems of low suspension rate of active ingredients and poor thermal storage stability, and achieve the goals of reducing the decomposition rate of the original drug, improving heat resistance, and increasing the suspension rate Effect

Active Publication Date: 2020-02-28
HUIZHOU YINNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a fungicidal composition containing pyraclostrobin and disenlian and its preparation method to solve the problem of low suspension rate of active ingredients and stable heat storage in water-dispersible granules in the prior art. sex problem

Method used

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  • Bactericidal composition containing pyraclostrobin and metiram and preparation method of bactericidal composition
  • Bactericidal composition containing pyraclostrobin and metiram and preparation method of bactericidal composition
  • Bactericidal composition containing pyraclostrobin and metiram and preparation method of bactericidal composition

Examples

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Effect test

Embodiment 1 to Embodiment 5

[0029] Table 1 shows the fungicidal compositions containing pyraclostrobin and disenlian in Examples 1 to 5 of the present invention, and the fungicidal compositions in Comparative Examples 1 to 3. Among them, Comparative Examples 1-3 are existing commonly used fungicidal compositions.

[0030] Table 1

[0031]

[0032] Among them, polycarboxylate dispersant D518 is selected from Dow Chemical (China) Investment Co., Ltd., Tersperse2700 is selected from Huntsman Functional Products Department, YUS-WG7 is selected from Takemoto Oil Co., Ltd., and D800 is selected from Beijing Guangyuan Yinong Chemical Co., Ltd.; Lignosulfonate dispersants Reax 910, Reax 907, Reax AG are selected from Medworth Vacc (China) Investment Co., Ltd., Ultrazine NA, Ufoxane 3A are selected from Bolige International Trading (Shanghai) Co., Ltd.; Morwet D-425, an alkylnaphthalene sulfonate formaldehyde condensate, was selected from Nanjing Jierun Technology Co., Ltd.

preparation Embodiment 1、 Embodiment 2

[0034] The method for preparing the bactericidal composition of embodiment 1, embodiment 2, embodiment 3, embodiment 4 or embodiment 5 may further comprise the steps:

[0035] 1. According to the percentages in the above-mentioned examples, add the dispersant, wetting agent, pH regulator, and disintegration aid to dissolve in water respectively to form a mixed solution;

[0036] 2. Add pyraclostrobin, pyraclostrobin and filler into the mixed solution, and use a homogenizer to homogeneously disperse for 30 minutes, and the speed of the homogenizer is 1470r / min;

[0037] 3. After pulverizing the uniformly dispersed material with a colloid mill, use a sand mill to grind the material until the particle size is D98≤5μm; in this step, first wet-grind the material in the mixed solution, and then spray dry it to make When making slurry, the amount of water added should be strictly controlled. Too much water added will cause the moisture content of the fungicidal composition containing...

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Abstract

Embodiments of the invention disclose a bactericidal composition containing pyraclostrobin and metiram and a preparation method of the bactericidal composition. The bactericidal composition comprisesthe following raw materials in percentage by mass: 3 to 8% of pyraclostrobin, 50 to 60% of metiram, 10 to 30% of a dispersing agent, 1 to 5% of a wetting agent, 0.5 to 3% of a pH value regulator, 0.5to 5% of a disintegrating aid, 0.05 to 0.3% of a defoaming agent and 0 to 20% of a filler. The preparation method of the bactericidal composition comprises the following steps: dissolving the dispersing agent, the wetting agent, the pH value regulator and the disintegrating aid in water in proportion to form a mixed solution; and adding pyraclostrobin, metiram and the filler into the mixed solution and carrying out homogenizing and dispersing to form mixed slurry. The bactericidal composition disclosed by the embodiments of the invention comprises two effective components, namely pyraclostrobin and metiram, with different bactericidal mechanisms, has protection and treatment effects, can be used for effectively preventing and treating diseases caused by fungi such as basidiomycetes and ascomycetes, and is safer to non-target organisms and the environment.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of pesticides, and in particular to a fungicidal composition containing pyraclostrobin and disenlian and a preparation method thereof. Background technique [0002] Pyraclostrobin, also known as pyraclostrobin, is a methyl methoxyacrylate broad-spectrum fungicide with a pyrazole structure discovered by BASF in 1993. It can prevent and control plant diseases caused by almost all types of fungal pathogens such as Ascomycetes, Basidiomycetes, Deuteromycetes and Oomycetes. At the same time, it is a hormone-type fungicide, which can make crops absorb more nitrogen , to promote the growth of crops. [0003] Metiram, a protective fungicide, has a good control effect on various diseases caused by oomycetes. Because of its wide bactericidal range, not easy to produce resistance, the control effect is obviously better than other similar fungicides, and it is a substitute product for other p...

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 谭葵韦沙迪陈玉清莫俊锐王爱臣廖联安
Owner HUIZHOU YINNONG TECH
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