Propiconazole Prevents Overdose of Wheat Powdery Mildew

Jining Distribution WeChat: Will the use of 25% propiconazole 50 grams per acre plus 1 barrel of water to prevent wheat powdery mildew, safety and effectiveness of how?

Propiconazole is registered for the prevention and control of wheat powdery mildew. Generally, it uses 7.5 to 10 grams of pure medicine per acre, equivalent to 20% of propoxazole, 30 to 40 grams of oil per acre. The drug is a suitable drug species for the control of wheat powdery mildew, and it has good control effect on wheat powdery mildew. In recent years, powdery mildew pathogens in some areas have produced higher resistance to triadimefon, resulting in decreased control efficacy. Propiconazole and triadimefon are triazole bactericides, and there is cross-resistance between the two. The use of triazole bactericides such as propiconazole to control wheat powdery mildew will increase the resistance of pathogens. In regions where the powdery mildew resistance to triadimefon is resistant, if propiconazole is used to prevent and control the effect is unsatisfactory, drugs such as azoxystrobin and azoxystrobin can be used in order to delay the rise of the resistance of the pathogen.

Propiconazole and other azole fungicides have a certain inhibitory effect on the growth of wheat, and the amount should not be too large to avoid excessive inhibition of wheat growth. The use of 25% propiconazole per acre 50 grams, equivalent to 12.5 grams of propiconazole pure drug per acre, a larger amount, in the weak growth of wheat seedlings, met with strong cooling temperature after the application of cold weather, it is easy to excessively inhibit the growth of wheat seedlings However, when the wheat seedlings are large and grow normally and the temperature is stable after application, they will generally not cause adverse effects on the growth of wheat seedlings.

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