Reasonable mixing of azoxystrobin and triazole fungicides in rice fields, effective disease prevention and production

Q: I am from Xindu Town, Tongcheng City, Anhui Province. What is the effect of azoxystrobin plus hexaconol on rice sheath blight?

A: Azoxystrobin is a methoxy acrylate fungicide with unique bactericidal mechanism. It is a mitochondrial respiratory inhibitor of pathogenic cells. It inhibits mitochondrial respiration through electron transfer in the physiological activities of pathogens, and interferes with cell energy supply, causing cell death. . It has a wide spectrum of sterilization, and has protection, treatment and eradication activities for most diseases caused by pathogenic fungi such as Ascomycetes, Deuteromycetes and Oomycetes, against rice sheath blight, rice leafhopper, rice false smut Have good control effect. It has a strong osmotic effect and a long-lasting effect. Strains which are resistant to 14-demethylase inhibitors, benzamides, dicarboxamides and benzazoles can also be killed by this drug.

The diniconazole triazole fungicide is a sterol demethylation inhibitor with systemic, protective and therapeutic activity, and has broad-spectrum protection and therapeutic effects on fungi caused by fungi, especially basidiomycetes and ascomycetes. By destroying and preventing the biosynthesis of ergosterol, an important component of the cell membrane of the pathogen, the cell membrane cannot form and cause the bacteria to die.

Reasonable mixing of azoxystrobin and hexaconazole in rice fields can effectively treat sheath blight, and the compounding agent of these two drugs is registered for rice control of sheath blight. Jiangsu Suike Agrochemical Co., Ltd. Sumeda 24% hexazole azoxystrobin suspension, containing hexazolol 16%, azoxystrobin 8%, registered for rice control of sheath blight, per hectare pure medicine The recommended dosage is 54 to 72 grams. The drug not only has good control effect on rice sheath blight, but also has good control effect on rice false smut and rice leaf blast. Guangxi Rural Biochemical Co., Ltd., Lianyungang Liben Crop Technology Co., Ltd., Jiangsu Aijin Agrochemical Co., Ltd., Jiangsu Dongbao Agrochemical Co., Ltd., Shaanxi Thompson Biotechnology Co., Ltd. and other companies also have hexaazole azoxystrobin product registration Used in rice to control sheath blight.

Tebuconazole, difenoconazole, propiconazole and other drugs, and oxazolol are triazole drugs. These drugs are mixed with azoxystrobin, such as Syngenta's Ami 325g / Benzene azoxystrobin suspension, 75% ethiazole azoxystrobin water dispersible granules of Shike Company, and 25% propanol azoxystrobin suspension of Shaanxi Meibang Pesticide Co., Ltd. It can effectively control rice sheath blight, rice leafhopper and rice false smut. Azoxystrobin has the effect of promoting rice growth, triazole drugs can prolong the functional period of leaves, and rice fields can reasonably use a mixture of azoxystrobin and hexazole drugs, which has better disease prevention and production.

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(Source: Pesticide Newsletter)

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