Powdery Mildew
Powdery mildew on Rose is a fungus which spreads a white or ash-grey film over the upper and lower surfaces of the leaves of plants-usually the older leaves. Powdery mildew fungus favours high humidity and dry conditions.
Appearance of a whitish film on leaves and buds. New growth is distorted and older leaves become blackened. Flower buds may fail to open.
How to control Powdery Mildew
Stroby WG Fungicide
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