Azalea gall

Azalea gall attacks certain rhododendrons and azaleas out of doors and is often seen on indoor pot-grown plants of Rhododendron simsii, the popular Indian azalea, obtained from florists.

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Azalea gall

Quick facts

Common name Azalea gall
Scientific name Exobasidium japonicum
Plants affected Rhododendrons, mainly azaleas
Main symptoms Galls (fleshy swellings) on leaves or flowers
Caused by Fungus
Timing Spring until autumn

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