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Azoxystrobin No Cross Resistance
Oct 19, 2017

Pyrimethamine is a traditional fungicide, aniline pyrimidine class. For the current traditional drugs in the control of cucumber gray mold, tomato gray mold, fusarium wilt higher fungicide. Azoxystrobin Its unique mechanism of action, is through the inhibition of bacteria to produce enzymes to prevent germ infection and kill bacteria.

For the commonly used non-anilino pyrimidines (benzimidazole and carbamate) fungicides have been resistant to Botrytis cinerea has potent, mainly inhibition of Botrytis cinerea elongation and mycelial growth, A certain period of time on the Botrytis cinerea spore germination also has a certain inhibitory effect.

At the same time with the suction and fumigation effect, Azoxystrobin after spraying quickly reached the plant flowers, young fruits and other spray can not reach the site to kill bacteria, especially after adding halide effect penetrant, can increase the leaf and fruit attachment time and infiltration Speed, is conducive to absorption, so that the efficacy of faster and more stable, the current domestic success of 41% poly astatine? Pyrimethamine. In addition pyrimethamine is not sensitive to temperature, at a relatively low temperature application does not affect the efficacy.

Pyrimethamine has a protective and therapeutic effect, Azoxystrobin is the control of gray mold, fusarium wilt of a highly efficient, low toxicity fungicide, with the suction and fumigation effect, after spraying can quickly spread to various parts of the plant, the effective inhibition of pathogens Infesting the production of enzymes, thereby preventing the infection of bacteria, completely kill the bacteria. Azoxystrobin And other fungicides without cross-resistance, and at low temperatures, there is still a very good protection and treatment. For the control of cucumber, tomato, grapes, strawberries, peas, leeks, and other crops gray mold, Azoxystrobin fusarium wilt and fruit tree scab, spotted leaf disease.

Control of cucumber tomatoes and other gray mold, before or at the beginning of the disease, per acre with 40% pyrimethamine 25-95g, watered 800-1200 times, acres of water 30-75kg, plant large, high dose of high water; Small, low dose of low water, every 7-10 days with a time, sharing 2-3 times. Azoxystrobin A growing season to control the need for medication more than 4 times, should be used with other fungicides rotation, to avoid resistance. Open vegetables should be selected early morning and small wind, low temperature.

The product is a methacrylic acid ester (Strobilurin) class of bactericidal pesticides, efficient, broad-spectrum, almost all of the fungal community (Ascomycetes subfamily, Basidiomycetes, flagellum subfamily and semi-fungal subfamily) diseases such as Powdery mildew, rust, blight, net spot, Azoxystrobin downy mildew, rice blast and so have good activity. Can be used for stem and leaf spray, seed treatment, can also be soil treatment, mainly for cereals, rice, peanuts, grapes, potatoes, fruit trees, vegetables, coffee, lawn and so on. The dosage is 25ml-50 / mu. Azoxystrobin can not be mixed with pesticide EC, especially organic phosphorus emulsions, Azoxystrobin can not be mixed with silicone synergist, due to osmotic and develop too strong cause injury, acute oral:> 5000mg / kg; acute percutaneous:> 2000 mg / kg.

In the protection of tomatoes, Azoxystrobin had found the azoxystrobenzene phytotoxicity, tomato seedlings transplanted 2 weeks to be used with caution. The study found that vegetable powdery mildew has been resistant to azoxystrobin, continuous application of more than 2 times, Azoxystrobin the effect was significantly decreased.

Azoxystrobenzene of the original drug and complex have been patented, Azoxystrobin starting in March 2013, a large number of domestic manufacturers to carry out a single and complex products in the production and promotion of other types of fungicides have a greater impact.