Azoxystrobin:
This product is an efficient and broad-spectrum strobilurin bactericidal insecticide, which has good activity against almost all fungal diseases (ascomycetes, basidiomycetes, flagellates, fungi), such as powdery mildew, rust, glume blight, reticulate leaf spot, downy mildew, rice blast, etc. It can be used for stem and leaf spraying, seed treatment and soil treatment, and is mainly used for cereals, rice, peanuts, grapes, potatoes, fruit trees, vegetables, coffee, lawns, etc. The dosage is 25ml-50ml/mu. Azoxystrobin can't be mixed with pesticide emulsifiable concentrate, especially organophosphorus emulsifiable concentrate, and can't be mixed with silicone synergist, which will cause phytotoxicity due to excessive permeability and spreadability. Acute oral administration: > 5000mg/kg；; Acute percutaneous: > 2000 mg/kg.
The phytotoxicity of azoxystrobin has been found on tomatoes in protected fields, so it should be used with caution within 2 weeks after tomato seedlings are transplanted. It was found that powdery mildew of vegetables had developed resistance to azoxystrobin, and the effect was obviously reduced after continuous application for more than 2 times.
The original drug and compound of azoxystrobin have passed the patent period. Since March 20 13, a large number of domestic manufacturers have produced and promoted single-dose and compound products, which has caused great impact on other types of fungicides.
It belongs to methoxyacrylate bactericide, developed by Syngenta Company, and its Chinese names are Amisi Da and Anmieda. Product name: AboundAmistarHeritageQuadris.
Azoxystrobin contains β -methoxymethacrylate as active group and substituted pyrimidine ring as branch chain.
Azoxystrobin has protective, therapeutic and eradication effects, and has permeability and systemic activity. It can be used for stem and leaf spraying, seed treatment and soil treatment. It has good control effect on grape powdery mildew and apple scab.
Azoxystrobin has been registered in China. The 250g/L azoxystrobin SC of British Syngenta Company has obtained the registration certificate of PD20060033 with the trade name of Amisi Da. The registered crops are: soybeans, ginseng, tomatoes, cucumbers, peppers, lychees, mangoes, grapes, watermelons, bananas, loofah, wax gourd, potatoes, oranges and cauliflowers, and the control targets are rust, black spot and early blight.