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Bactericidal composition containing captan and isopyrazam

A technology of pyraclostrobin and its composition, which is applied in the field of pesticide compositions, can solve the problems of high cost pathogenic bacteria resistance risk, unfavorable environmental sustainable development, and disintegrating the growth of pathogenic bacteria, so as to improve the control effect, prolong the service life, Delaying the effects of drug resistance

Inactive Publication Date: 2018-06-15
YINGDE GREATCHEM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Pyrafenapyramide is a pyrazole amide fungicide researched and developed by Syngenta. By inhibiting the succinate dehydrogenase in the electron transport chain on the inner mitochondrial membrane, pathogenic fungi cannot produce energy through respiration, and then disintegrate The growth of pathogenic bacteria, the cost of this compound alone is high and it is easy to cause the risk of resistance of pathogenic bacteria
[0005] Regardless of whether it is captan or pyraclostrobin, continuous use will lead to a decrease in drug efficacy, which will lead to a further increase in usage, which is not conducive to the sustainable development of the environment

Method used

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  • Bactericidal composition containing captan and isopyrazam
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  • Bactericidal composition containing captan and isopyrazam

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment

[0037] 1. Example 1: 35% captan · pyraclostrobin water dispersible granules (1:1)

[0038]

[0039] The preparation method of the water-dispersible granule is as follows: add the above-mentioned materials into a conical mixer according to the proportion and mix them evenly, then pulverize them through a jet mill, and then mix the pulverized materials through a conical mixer, and the mixed materials The fineness of 98% passes through a 400-mesh standard sieve, and is added to a kneader to knead into a plastic material, and finally the material is put into an extrusion granulator to extrude and granulate, and after granulation, it is dried and sieved to obtain the present invention The water dispersible granules.

Embodiment 2

[0040] 2. Example 2: 60% captan · pyraclostrobin wettable powder (5:1)

[0041]

[0042] The preparation method of the wettable powder is as follows: according to the above formula, captan, pyraclostrobin, various additives and fillers are evenly mixed according to the proportion of the formula, and after being pulverized by an ultrafine pulverizer, it can be obtained The wettable powder of the present invention.

Embodiment 3

[0043] 3. Example 3: 40% captan · pyraclostrobin suspension concentrate (7:3)

[0044]

[0045]

[0046] The preparation method of the suspending agent is as follows: according to the formula, the active ingredient, wetting agent, defoamer, antifreeze agent and deionized water are mixed uniformly, after being uniformly mixed by a sand mill, magnesium aluminum silicate is added to continue to mix uniformly, The suspending agent of the present invention can be obtained.

[0047] 4. Example 4: 42% captan · pyraclostrobin suspension concentrate (2:1)

[0048]

[0049] The preparation method of the suspending agent is as follows: according to the formula, the active ingredient, wetting agent, defoamer, antifreeze agent and deionized water are mixed uniformly, after being uniformly mixed by a sand mill, magnesium aluminum silicate is added to continue to mix uniformly, The suspending agent of the present invention can be obtained.

[0050] 3. Field drug efficacy test

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Abstract

The invention relates to a bactericidal composition containing captan and isopyrazam. The weight ratio of the captan to the isopyrazam in the bactericidal composition is 1:5-50:1, and preferred mass ratio is 1:1-10:1; active ingredients in the bactericidal composition account for 20-80% of the weight content percentage of the composition, and the preferred percentage is 30-60%. According to the composition, the synergistic bactericidal composition can be prepared into any kind of suitable preparations used in agricultural production, and the kinds of the preparation include but not limited toemulsifiable concentrates, wettable powder, suspending agent, water dispersible granule, microemulsion, aqueous emulsion and the like; the composition has the advantages of being good in protection effect, low in cost, environmentally-friendly and safe.

Description

technical field [0001] The invention belongs to the field of pesticide compositions, and in particular relates to a fungicidal composition containing captan and pyraclostrobin, and its use for preventing and treating crop diseases. Background technique [0002] Powdery mildew is widely distributed in my country, and the damage to dicotyledonous plants is particularly common. When powdery mildew occurs, the growth of the affected part of the host is inhibited, and the greening and yellowing gradually fades. Blight spots appear until the whole leaf dries up. In severe cases, the plant will wither early. In the later stage of the disease, in the white powdery mold layer composed of mycelia and conidia, there are often many scattered black granular closure shells, and they survive the winter, and the ascospores are used for initial infection in the next spring. Once powdery mildew occurs, it spreads very quickly, and crops can be repeatedly infected in one growing season. Powde...

Claims

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Application Information

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IPC IPC(8): A01N47/04A01N43/56A01P3/00
CPCA01N47/04A01N43/56
Inventor 彭军蔡丹群黄卫荣麦洪海刘世勇王世银
Owner YINGDE GREATCHEM CHEM
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