Primula leaf spots

Leaf spots on primulas are yellow spots, often with dead, brown centres, and are caused by several different fungi and a bacterium.

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Leaf spot on Primula species caused by the fungus Ramularia. Lower (left) and upper (right) leaf surfaces.

Quick facts

Common name: Primula leaf spots
Scientific name: Various
Plants affected: Primula spp. (primulas)
Main symptoms: Yellow spots, sometimes with mould growth on undersides of leaves
Caused by: Fungi and a bacterium
Timing: From Spring until Winter

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