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Difenoconazole suspending agent for preventing and treating peach branch blight and preparation method thereof

A technology of difenoconazole and suspending agent, which is applied in the fields of botany equipment and methods, biocides, disinfectants, etc., and can solve the problem of complex composition of water-dispersible granules, which is difficult to adapt to the requirements of disease prevention and control, and granules Large diameter and other problems, to achieve a unique control effect, low toxicity, fine and uniform particles

Inactive Publication Date: 2020-09-29
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is that difenoconazole is mainly suitable for cereal crops, various vegetables, etc. When the stems and leaves of the crops are treated, the leaves are prone to discoloration
Among them, the composition of water-dispersible granules is complex, and the particle size becomes larger after being disintegrated with water, which makes it difficult to meet the current requirements for disease prevention and control; emulsifiable concentrates use a large amount of organic solvents, which are flammable and explosive, and easily cause environmental pollution
At present, there is no drug made from difenoconazole that has a unique control effect on peach branch blight caused by Phomopsis peach

Method used

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  • Difenoconazole suspending agent for preventing and treating peach branch blight and preparation method thereof
  • Difenoconazole suspending agent for preventing and treating peach branch blight and preparation method thereof
  • Difenoconazole suspending agent for preventing and treating peach branch blight and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A difenoconazole suspending agent, its concrete preparation steps are:

[0025] (1) In terms of mass percentage, 42.5% difenoconazole technical material, 2% wetting and dispersing agent 2% wetting and dispersing agent Xanthan gum 0.05%, ethylene glycol 4%, polyoxysilane 0.5%, make up deionized water and mix evenly, set aside;

[0026] (2) Pre-disperse for 10 minutes with 8000r / min rotating speed in the shearing machine;

[0027] (3) Transfer to the sand mill barrel, add zirconium beads to grind for 2h with a volume ratio of 1:1;

[0028] (4) The zirconium beads are filtered out by gauze, and the preparation of difenoconazole aqueous suspension is completed at this time.

Embodiment 2

[0030] A difenoconazole suspending agent, its concrete preparation steps are:

[0031] (1) In terms of mass percentage, 40% difenoconazole technical substance, 1% wetting and dispersing agent 1% wetting and dispersing agent Aluminum magnesium silicate 0.3%, propylene glycol 3%, silicone oil 0.6%, make up deionized water and mix well, set aside;

[0032] (2) Pre-disperse for 10 minutes with 8000r / min rotating speed in the shearing machine;

[0033] (3) Transfer to the sand mill barrel, add zirconium beads to grind for 2h with a volume ratio of 1:1;

[0034] (4) The zirconium beads are filtered out by gauze, and the preparation of difenoconazole aqueous suspension is completed at this time.

Embodiment 3

[0036] A difenoconazole suspending agent, its concrete preparation steps are:

[0037] (1) In terms of mass percentage, 45% difenoconazole technical substance, 3% wetting and dispersing agent 3% NNO, 0.2% gelatin, 5% glycerol, 0.4% silicone ether copolymer, add deionized water and mix well, set aside;

[0038] (2) Pre-disperse for 10 minutes with 8000r / min rotating speed in the shearing machine;

[0039] (3) Transfer to the sand mill barrel, add zirconium beads to grind for 2h with a volume ratio of 1:1;

[0040] (4) The zirconium beads are filtered out by gauze, and the preparation of difenoconazole aqueous suspension is completed at this time.

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Abstract

The invention discloses a difenoconazole suspending agent for preventing and treating peach branch blight and a preparation method thereof in the technical field of pesticide production. The formula of the difenoconazole suspending agent comprises the following components in percentage by weight: 40-45% of difenoconazole; 2-6% of a wetting dispersant; 0.1 to 0.3 percent of a thickening agent; 3-5%of an antifreezing agent; 0.4%-0.6% of a defoaming agent; and the balance of deionized water. The raw materials are subjected to wet sanding to obtain the difenoconazole suspending agent. The difenoconazole suspending agent prepared by the invention has the characteristics of high storage stability, low dosage of a wetting dispersant, simple processing, obvious control effect and the like. The invention is specially used for preventing and treating peach branch blight caused by phomopsis amygdalina.

Description

technical field [0001] The invention relates to a fungicide and a preparation method thereof in the technical field of pesticide production, in particular to a fungicide for preventing and treating peach branch blight and a preparation method thereof. Background technique [0002] Peach branch blight has occurred and spread rapidly in my country's southern peach producing areas such as Wuxi, Jiangsu, Jiaxing, Zhejiang, Nanhui, Shanghai, and Kunming, Yunnan, and the average loss of peach orchards is 20%-50%. Peach branch blight is caused by Phomopsis peach, and chemical control is an important method to control peach branch blight. Chlorothalonil, captan, thiram, carbendazim, prochloraz, etc. can effectively control peach branch blight, but long-term use of a single fungicide species in large quantities can easily cause peach branch blight to develop resistance. Difenoconazole is a broad-spectrum and high-efficiency fungicide, which mainly inhibits the biosynthesis of ergost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/653A01P3/00A01P1/00
CPCA01N25/04A01N43/653
Inventor 冯建国陈旺彭帅纪兆林陈志洋刘井兰杨景涵陈麒丞沈亚明
Owner YANGZHOU UNIV
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