Iris yellow spot virus are often seen as a cream, elliptical spots on the leaves. The spots also appear on onion scapes or flower stalks of onions.
As both infected leaves and scapes age, they can collapse at the site of the spots. The Spots Although the spots may be at first being insignificant, the disease has the potential of devastating the whole crop.
Ajinkya’s Velvet 5 ml per liter water.