Rose powdery mildew

Powdery mildew is one of the most common foliar diseases of roses. The white, powdery fungal growth can be very disfiguring, with repeated heavy infection reducing plant vigour. Cultural techniques play an important role in minimising outbreaks, and fungicides are also available if required.

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Rose powdery mildew

Quick facts

Common name Rose powdery mildew
Scientific name Podosphaera pannosa
Plants affected Roses
Main symptoms White, powdery fungal growth on leaves and other aerial parts
Caused by Fungus
Timing Summer

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