Azoxystrobin is an organic compound, which is a kind of high-efficiency and broad-spectrum methoxyacrylate bactericide. It has good activity on almost all fungal diseases (Ascomycetes, Basidiomycetes, Flagellates and Hemimycota), such as albinism, rust, glume blight, reticulate leaf spot, downy mildew, rice warm disease and so on. 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 to 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 diffusion.
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 vegetable white spot disease had developed resistance to azoxystrobin, and the effect decreased obviously 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.
Main dosage forms and contents of China:
25% suspending agent, 50% water dispersible granule and 32.5% azoxystrobin suspending agent, 20% to 32% azoxystrobin suspending agent and 20% to 50% azoxystrobin suspending agent; 10% to 50% azoxystrobin dimethomorph SC/WG, etc. (excluding seed treatment).
Functional characteristics
1, broad bactericidal spectrum: one medicine can cure many diseases, reduce dosage and reduce production cost.
2, increase disease resistance: less illness, vigorous growth, early birth and rapid development, early listing.
3, improve the resilience: bad weather is also high.
4. Delay aging: prolong the harvest period, increase the total output and increase the total income.
5. Long duration: specific effect period 15 days, reducing the number of drug use and less pesticide residues in vegetables.
6, high efficiency and safety: the effect of internal absorption is obvious, natural and low toxicity, safe and pollution-free.
Usage of azoxystrobin
The best application time of azoxystrobin is before flowering, after flowering and young fruit stage. The application method is to apply it in the early stage of downy mildew, early blight, carbon blight, leaf spot and other diseases. Generally, the stems and leaves are sprayed with 25% azoxystrobin suspension concentrate 1000 ~ 1500 times, once every 10 day, and the crops are at most three times a season.
Azoxystrobin is a novel high-efficiency, broad-spectrum and systemic fungicide, which can be used for stem and leaf spraying, seed treatment and soil treatment. Azoxystrobin has a good activity against almost all fungal pathogens and a wide bactericidal spectrum. Can be used for treating albinism, rust, glume blight, nettle leaf spot, downy mildew, rice warm disease and other diseases in cereals, vegetables, fruit trees, peanuts, potatoes, coffee and lawns. The specific dosage can be adjusted according to different crops and diseases. Under normal circumstances, 2.5 ~ 26 grams of active ingredients can be applied per mu.
In addition, azoxystrobin can also increase the disease resistance of plants, and has a long specific period, which can reduce the frequency and cost of drug use, delay crop senescence, prolong harvest period and increase total output. It should be noted, however, that azoxystrobin cannot be mixed with emulsifiable concentrate pesticides or silicone synergist.