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Isopyrazam and tetraconazole bactericidal composition and application thereof

A technology of pyraclostrobin and tetrafluconazole, which is applied in application, bactericide, biocide, etc., can solve the problems of no products, achieve short wetting time, reduce the cost of medication, and improve the effect of bactericidal effect

Inactive Publication Date: 2015-03-25
浙江威尔达化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Pyrafenafil and Tefluconazole are fungicides with completely different mechanisms of action. So far, there has been no report on the mixed use of pyraclostrobin and Tefluconazole, let alone a reasonable combination of the two. product

Method used

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  • Isopyrazam and tetraconazole bactericidal composition and application thereof
  • Isopyrazam and tetraconazole bactericidal composition and application thereof
  • Isopyrazam and tetraconazole bactericidal composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The active ingredient is 15% pyraclostrobin Tetrafluconazole aqueous emulsion

[0046] Pyrafenafil (92%) 109kg, Tetrafluconazole (95%) 53 kg, Calcium dodecylbenzenesulfonate (emulsifier) ​​40 kg, Styrylphenyl polyoxyethylene ether (emulsifier) 45kg, methyl oleate 100kg (solvent), xylene 100kg (solvent), water to make up. During production, first add part of the solvent oil into the reaction kettle, then add the remaining solvent oil of the original drug and emulsifier in turn, stir at 2000 rpm for 30 minutes, after fully dissolving, transfer to the shearing kettle, add water at 3000 rpm The product was obtained by shearing in rpm for 30 minutes.

Embodiment 2

[0048] The active ingredient is 10% pyraclostrobin Tetrafluconazole aqueous emulsion

[0049] Pyrafenafil (92%) 55kg, Tetrafluconazole (95%) 53kg, Calcium dodecylbenzenesulfonate (emulsifier) ​​40 kg, Styrylphenyl polyoxyethylene ether (emulsifier) ​​45kg , methyl oleate 100kg (solvent), xylene 100kg (solvent), water to make up. During production, first add part of the solvent oil into the reaction kettle, then add the remaining solvent oil of the original drug and emulsifier in turn, stir at 2000 rpm for 30 minutes, after fully dissolving, transfer to the shearing kettle, add water at 3000 rpm The product was obtained by shearing in rpm for 30 minutes.

Embodiment 3

[0051] The active ingredient is 55% pyraclostrobin Tetrafluconazole water dispersible granules

[0052] Pyrafenapyr (92%) 544kg, Tetrafluconazole (95%) 53kg, Modified terminal olefin sulfonate (dispersant) 48kg, Polycarboxylate (dispersant) 40kg, Starch (filler) 100kg, Kaolin (filler) topping. During production, the raw materials are mixed and then pulverized by fluidized bed jet crushing equipment. The pulverized intermediates are put into fluidized bed granulation and drying equipment, and granules are made according to the operation requirements of the equipment. After drying, they are sieved to obtain processed products.

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Abstract

The invention provides an isopyrazam and tetraconazole bactericidal composition and an application thereof. Two effective component of the composition have an excellent synergistic effect. Specifically, the weight ratio of isopyrazam to tetraconazole in the composition is 10:1 to 1:10 based on active components, and preferably 5:1 to 1:5. The bactericidal composition disclosed by the invention has a quite good prevention and treatment effect in preventing and treating strawberry powdery mildew and can be used for reducing the dosage of a used pesticide, lowering the cost of the pesticide and also relieving the pressure to environment.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a bactericidal composition containing pyraclostrobin and tetrafluconazole which can be used for preventing and treating strawberry powdery mildew. Background technique [0002] Strawberry powdery mildew is one of the important diseases of strawberry, which is caused by the infection of the fungus Ascomycota subphylum Monothecia genus Monothecium laminae. It can occur throughout the growing season of strawberry. The seedlings are infected with the disease at the seedling stage and the quality of the seedlings is reduced, making it difficult to survive after transplantation. When the leaves are infected, a thin layer of white mycelium grows on the back of the leaves at the early stage of the disease. As the disease progresses, the leaves curl up and become spoon-shaped, and produce dark spots of various sizes. Later, the spots gradually expand and appear on the back of the leaves. A l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01P3/00A01N43/56
Inventor 杨婷吴鸿洲吴钦梅松
Owner 浙江威尔达化工有限公司
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