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Bactericidal composite used for preventing and treating powdery mildew

A composition and powdery mildew technology, applied in the direction of chemicals, fungicides, biocides, etc. used for biological control, can solve the problem of compounding and application of azoxystrobin and pyrimidine fungicides, which have not been reported and have poor effects Ideal, drug waste and other problems, to achieve good synergistic effect, reduce farmers' costs and labor, and delay the occurrence and development of resistance

Active Publication Date: 2010-05-05
QINGDAO STAR CROPSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The chemical name of Ethirimol is 5-butyl-2-ethylamino-4-hydroxy-6-methylpyrimidine, and the chemical name of Ethirimol sulfonate is 5-butyl-2-ethylamino- 6-methylpyrimidin-4-yldimethylaminosulfate, both of which belong to pyrimidine fungicides, are adenosine deaminase inhibitors with strong systemic activity. After absorbed by the leaves, it can be transmitted to the new leaves, and has a protective effect throughout the growth period of the crops. However, due to the long-term use of the two alone, the bacteria have developed resistance to them, and the effect of using them alone is not ideal, and it causes waste of drugs and damage to the environment. pollution
[0007] At present, no one has reported the compounding and application of azoxystrobin and pyrimidine fungicides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: 21% azoxystrobin pyrimethrim suspension concentrate, comprises the following components by weight:

[0028] Azoxystrobin (100 percent, the same below) 20%

[0029] Acetrimol 1%

[0030] Alkylaryl polyoxypropylene polyoxyethylene ether 5%

[0031] Sodium Polynaphthalene Sulfonate 5%

[0032] Ethylene glycol 3%

[0033] Xanthan Gum 0.8%

[0034] water balance

[0035] The above components are uniformly mixed according to the formula ratio, and a 21% azoxystrobin-pyrimethol suspension concentrate is obtained after high-speed shearing.

Embodiment 2

[0036] Embodiment 2: 6% azoxystrobin · pyrimethol suspension concentrate, comprises the following components by weight:

[0037] Azoxystrobin 5%

[0038] Acetrimol 1%

[0039] Alkylaryl polyoxypropylene polyoxyethylene ether 5%

[0040] Sodium Polynaphthalene Sulfonate 4%

[0041] Ethylene glycol 2.5%

[0042] Xanthan Gum 0.8%

[0043] water balance

[0044] The above-mentioned components are uniformly mixed according to the formula ratio, and a 6% azoxystrobin-pyrimethol suspension concentrate is obtained after high-speed shearing.

Embodiment 3

[0045] Embodiment 3: 15% azoxystrobin · pyrimethol water-dispersible granules, comprise the following components by weight:

[0046] Azoxystrobin 7.5%

[0047] Acetrimol 7.5%

[0048] Sodium lignosulfonate 6%

[0049] PO-EO block polyether 4%

[0050] Sodium Lauryl Sulfate 3%

[0051] Ammonium Sulfate 5%

[0052] Light calcium carbonate balance

[0053] Mix the above-mentioned active ingredients, dispersant, wetting agent, disintegrant and filler according to the ratio of the formula, and then crush it into a wettable powder by airflow, then add a certain amount of water to mix, extrude and granulate, and dry and sieve to obtain 15% Azoxystrobin·Pyrimethol water dispersible granules.

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PUM

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Abstract

The invention belongs to the technical field of the compounding of pesticide, and in particular relates to a bactericidal composite used for preventing and treating powdery mildew. In the bactericidal composite, azoxystrobin and pyrimidine class bactericide are compounded, wherein the weight ratio of the azoxystrobin to the pyrimidine class bactericide is 20:1-1:20. The bactericidal composite is used for preventing and treating the powdery mildew in agriculture, such as melon and cereal crops and the like, can enhance the preventing and treating effect obviously and has a better function for overcoming and delaying the drug resistance of pathogenic bacteria.

Description

technical field [0001] The invention belongs to the technical field of pesticide compounding, and in particular relates to a fungicidal composition for preventing and treating powdery mildew, which is used for preventing and controlling agricultural powdery mildew of melons, cereal crops and the like. Background technique [0002] Phytopathogenic fungus powdery mildew is an absolute specialized parasite. After infecting plants, it expands in the green part of the plant, and its propagules grow on the outside of the plant to form a white powder layer. In addition to absorbing plant nutrients, it also affects the photosynthesis of plants, resulting in Plants are weak or dead, because the conidia of powdery mildew spread with the airflow, the bacteria are large and mutate quickly, resulting in the occurrence of diseases in large watersheds, large-scale prevention and control, and a large number of medications. In some places where powdery mildew is seriously harmful, common fun...

Claims

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Application Information

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IPC IPC(8): A01N43/54A01P3/00
Inventor 李国安王辉纪玲玲
Owner QINGDAO STAR CROPSCI