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Bactericidal composition, fungicide and application thereof

A fungicide and composition technology, applied in the field of pesticides, can solve problems such as threatening crop production safety, pathogenic bacteria are prone to drug resistance, and the pressure of drug selection is large, and achieves the effects of being environmentally friendly, reducing the risk level of drug resistance, and having good quick effect.

Inactive Publication Date: 2018-11-23
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the growth process of crops, they will suffer from various diseases, and if the prevention and control is not timely, it will easily cause yield loss
Long-term use of one type of agent to prevent and control diseases will easily lead to excessive pressure on agent selection, and pathogenic bacteria will easily develop drug resistance, resulting in reduced or even lost control effects, leading to rampant diseases, increased difficulty in control, and threat to crop production safety

Method used

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  • Bactericidal composition, fungicide and application thereof
  • Bactericidal composition, fungicide and application thereof
  • Bactericidal composition, fungicide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The fungicidal composition of this embodiment includes metconazole, fludioxonil, and metrafenone, and the parts by weight of the three are: 15 parts of metconazole, 10 parts of fludioxonil, and 15 parts of metrafenone.

[0031] The bactericide of the present embodiment is 40% metconazole · fludioxonil · metrafenone wettable powder, including the following components in weight percentage: metconazole 15%, fludioxonil 10%, and metraconazole 15% , Bengxuan DK8 3%, sodium dodecylbenzenesulfonate 3%, and the balance is kaolin.

[0032] The preparation method of the fungicide in this embodiment includes the following steps: fully mix the above components, pulverize through a sand mill and pass through a 300-mesh sieve to obtain a 40% metconazole·fludioxonil·metrafenone wettable powder.

Embodiment 2

[0034] The fungicidal composition of this embodiment comprises metconazole, fludioxonil and metrafenone, and the parts by weight of the three are 10 parts of metconazole, 5 parts of fludioxonil and 5 parts of metrafenone.

[0035] The bactericide of the present embodiment is 20% metconazole·fludioxonil·metrafenone wettable powder, comprising the following components in percentage by weight: metconazole 10%, fludioxonil 5%, metrafenone 5%, Bengxuan DK8 3%, sodium dodecylbenzene sulfonate 3%, the balance is kaolin.

[0036] The preparation method of the fungicide in this embodiment includes the following steps: fully mix the above components, pulverize through a sand mill and pass through a 300-mesh sieve to obtain a 20% metconazole·fludioxonil·metrafenone wettable powder.

Embodiment 3

[0038] The fungicidal composition of this embodiment comprises metconazole, fludioxonil and metrafenone, and the parts by weight of the three are 10 parts of metconazole, 10 parts of fludioxonil and 15 parts of metrafenone.

[0039] The bactericide of the present embodiment is 35% metconazole · fludioxonil · metrafenone suspension concentrate, comprising the following components by weight percentage: metconazole 10%, fludioxonil 10%, metraconazole 15%, benzoxonil Ethylphenol polyoxyethylene ether phosphate 3%, ethylene glycol 5%, glycerin 5%, NNO 1%, sodium lignosulfonate 1%, organic bentonite 1%, silicone defoamer 0.1%, the balance for water.

[0040] The preparation method of the bactericide of the present embodiment comprises the steps of: fully mixing the above-mentioned components, and pulverizing them into 90% particles with a diameter of 3 μm (below 5 μm) through a sand mill to obtain 35% metconazole. Bactonitrile Metrafenone Suspension Concentrate.

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Abstract

The invention relates to a bactericidal composition, fungicide and application thereof and belongs to the technical field of pesticide. Indoor and field pesticide efficacy experiments show that metconazole, fludioxonil and metrafenone are used as active components; the three components are combined and screened to prove that the three components are mutually dissolved and are safe to use; the bactericidal composition has a remarkable synergistic effect on prevention and control of wheat head blight, wheat powdery mildew, wheat sheath blight, wheat rust disease, rice sheath blight and rape sclerotinia rot, and especially has a more remarkable synergistic effect on prevention and control of the wheat head blight and the rape sclerotinia rot. According to the bactericidal composition providedby the invention, the utilization dosage of pesticide can be greatly reduced in agricultural production and the cost is reduced; environment pollution and pesticide residues are reduced, and the bactericidal composition has important practical significance of increasing social, economic and ecological benefits.

Description

technical field [0001] The invention relates to a bactericidal composition, a bactericide and an application thereof, belonging to the technical field of pesticides. Background technique [0002] Meconazole, English common name: Metconazole, chemical name: 5-(4-chlorophenyl)-2,2-dimethyl-1-(1,2,4-triazol-1-ylmethyl)- Cyclopentanol, which belongs to triazole ergosterol biosynthesis inhibitors, is a broad-spectrum fungicide with systemic, protective and therapeutic effects. By inhibiting the ergosterol biosynthesis of plant pathogenic bacteria, destroying the permeability and structure of the cell membrane, it has good antibacterial activity on the mycelial growth of pathogenic fungi, and has good effects on wheat head blight, wheat powdery mildew and wheat rust. prevention effect. [0003] Fludioxonil, English common name: Fludioxonil, chemical name: 4-(2,2-difluoro-1,3-benzodiox-4-yl)pyrrole-3-carbonitrile, is a new type of phenylpyrrole A bactericide-like, split-protein-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N43/36A01N35/04A01P3/00
CPCA01N35/04A01N43/36A01N43/653
Inventor 刘圣明姜佳车志平田月娥徐建强陈根强
Owner HENAN UNIV OF SCI & TECH
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