04-22-2020, 09:40 PM
Here is an important info I came across. But this one is about Downy mildew.
Once it starts, protectant fungicides like mancozeb and captan will not control it. Phosphorus acid in combination with metalaxyl will control it if you start spraying before it starts or 3-4 days after it starts.
Strobilurin is good even when the disease is becoming severe but beware of resistance development (that is, the downy mildew microbes can eventually learn how to survive it). To prevent this, rotate Strobilurin with other fungicides like metalaxyl (combine with mancozeb) hexaconazole (combine with mancozeb) etc.
Metalaxyl combined with Mefonoxam ( Rodomil Gold M2) and Rodomil copper are also effective.
Once it starts, protectant fungicides like mancozeb and captan will not control it. Phosphorus acid in combination with metalaxyl will control it if you start spraying before it starts or 3-4 days after it starts.
Strobilurin is good even when the disease is becoming severe but beware of resistance development (that is, the downy mildew microbes can eventually learn how to survive it). To prevent this, rotate Strobilurin with other fungicides like metalaxyl (combine with mancozeb) hexaconazole (combine with mancozeb) etc.
Metalaxyl combined with Mefonoxam ( Rodomil Gold M2) and Rodomil copper are also effective.
Food for the Nation.
