Podosphaera tridactyla

Plum powdery mildew

Podosphaera tridactyla, Plum powdery mildew. Probably an aggregate of several species, this is a parasitic fungus that infects the leaves of Prunus species, mainly plums.


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Podosphaera tridactyla, Plum powdery mildew
Mildew on Blackthorn
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Podosphaera tridactyla, Plum powdery mildew
Mildew on Blackthorn leaf
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Podosphaera tridactyla, Plum powdery mildew
Leaf section
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Podosphaera tridactyla, Plum powdery mildew
Spores

Photograph detail


Slide 1: Podosphaera tridactyla, Plum powdery mildew. Infected Blacthorn leaves, Prunus spinosa. Mill Lane. Redmire. May.


Slide 2: Podosphaera tridactyla, Plum powdery mildew. Infected Blacthorn leaves, Prunus spinosa. Fungus following leaf veins. Mill Lane. Redmire. May.


Slide 3: Podosphaera tridactyla, Plum powdery mildew. Infected Blacthorn leaves, Prunus spinosa. Part of cross section of infected leaf. Collected from Mill Lane. Redmire. May.


Slide 4: Podosphaera tridactyla, Plum powdery mildew. Spores from Blackthorn leaf. Mill Lane. Photographed at x400, brightfield illumination. Redmire. May.