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A kind of synergistic fungicide composition and its preparation method and application

A technology of fungicide composition and synergist, which is applied in the field of synergistic fungicide composition and its preparation, can solve the restriction of the popularization and application of the biconazole thiram double preparation, the large particle size is difficult to achieve the ideal control effect, and the yield of wheat and quality hazards, to achieve the effects of significantly stimulating growth and increasing production, easy to clean production, and beneficial to bactericidal activity

Active Publication Date: 2016-07-06
南京南农农药科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wheat scab is the most important disease affecting wheat production in my country, and it has caused great harm to the yield and quality of wheat. In my country, benzimidazole and triazole fungicides have been used to control scab for a long time, and it has been monitored that the above-mentioned The strains with high resistance to pesticides and the increase of DON toxin in the grain have made the food security and food safety of wheat in my country face severe challenges.
[0003] Meconazole and thiram compound have a certain control effect on wheat scab, but most of these products on the market are ordinary wettable powder and suspension concentrate, and the dust during the production and use of wettable powder has a great impact on the operation. It is harmful to humans, and because of its large particle size, it is difficult to achieve the ideal control effect, and the suspension is easy to layer and precipitate during storage, and in severe cases, it cannot be poured out of the container. promotion and application of
[0004] At present, there is no obvious effect, simple production process, environmental protection, and easy-to-use pesticide preparations

Method used

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  • A kind of synergistic fungicide composition and its preparation method and application
  • A kind of synergistic fungicide composition and its preparation method and application
  • A kind of synergistic fungicide composition and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0033] Experimental example 1. Comparative test with conventional product performance

[0034] The synergistic type 60% metconazole thiram double superfine powder prepared in embodiment 1 embodiment 2 embodiment 3 embodiment 4 is selected for testing, conventional 60% metconazole thiram double wettable powder, conventional 60% metconazole Clotaziram double suspension.

[0035] Table 1 performance comparison test

[0036]

[0037] As can be seen from Table 1, the ultrafine powder particle diameter D90 obtained by the inventive method is all less than 3 microns, and its particle diameter is not only less than the conventional suspending agent, but also significantly less than the conventional wettable powder 15.6 micron; intuitive performance is in In terms of suspension rate, the suspension rate of the embodiments of the present invention is higher than 98%, which is not only superior to suspension concentrate products, but also significantly higher than other wettable powd...

experiment example 2

[0038] Experimental example 2, field efficacy test

[0039] The synergistic type 60% metconazole thiram double superfine powder prepared in embodiment 1 embodiment 2 embodiment 3 embodiment 4 is selected for testing, conventional 60% metconazole thiram double wettable powder, conventional 60% metconazole Clotaziram double suspension.

[0040] The test results are as follows

[0041] Table 2 Control of wheat scab by spraying pesticides at the early stage of wheat flowering.

[0042]

experiment example 3

[0043] Experimental example 3. The above medicaments were applied at the early stage of wheat powdery mildew.

[0044] The synergistic type 60% metconazole thiram double superfine powder prepared in embodiment 1 embodiment 2 embodiment 3 embodiment 4 is selected for testing, conventional 60% metconazole thiram double wettable powder, conventional 60% metconazole Clotaziram double suspension.

[0045] The test results are shown in Table 3:

[0046]

[0047] As can be seen from Table 2 and Table 3, the synergistic type 60% pyraconazole double superfine powder consumption made by the embodiment of the present invention is at 40 grams, and 60 grams have a stable control effect on scab and powdery mildew , is obviously better than the conventional powder and suspension concentrate of this product, and is also better than the preparations added with fast T and azone, especially the long-lasting period reflected in Table 2, which may be the synergist humic acid or its salt The d...

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Abstract

The invention aims to disclose an effect-increased bactericide composition. Raw materials of the bactericide composition comprise, by weight, 1-7 parts of metconazole, 1-7 parts of thiram and 0.5-2 parts of an effect-increasing agent. The effect-increasing agent is one or more of humic acid, magnesium humate, zinc humate and potassium humate. A preparation method includes following steps: adding conventional auxiliary materials to the raw materials and preparing a powdery agent, which is acceptable in use, according to conventional processes. The invention also discloses applications of the bactericide composition in prevention and cure of wheat scab pathogens, powdery mildew or rust, and particularly discloses an application of the bactericide composition in prevention and cure of wheat scab pathogens which has drug resistance to a benzimidazole bactericide. With addition of the effect-increasing agent, the bactericide composition not only achieves maximum effect in bactericidal activity but also has obvious and remarkable growth-stimulating and production-increasing effects.

Description

technical field [0001] The invention relates to the technical field of pesticide processing, in particular to a synergistic fungicide composition and its preparation method and application. Background technique [0002] Wheat scab is the most important disease affecting wheat production in my country, and it has caused great harm to the yield and quality of wheat. In my country, benzimidazole and triazole fungicides have been used to control scab for a long time, and it has been monitored that the above-mentioned The strains with high resistance to pesticides and the increase of DON toxin in grains have made the food security and food safety of wheat in my country face severe challenges. [0003] Meconazole and thiram compound have a certain control effect on wheat scab, but most of these products on the market are ordinary wettable powder and suspension concentrate, and the dust during the production and use of wettable powder has a great impact on the operation. It is harm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/26A01P3/00A01N43/653
Inventor 周明国孙琴张兵贾晓静
Owner 南京南农农药科技发展有限公司
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