Phyllosticta sphaeropsoidea

Phyllosticta • Botryosphaeriales • Dothideomycetes • Ascomycota • fungi • plant diseases • pests-diseases-weeds

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Phyllosticta sphaeropsoidea (=Guignardia aesculi) symptoms on horse chestnut leaf (click on image to enlarge it)
Author(s): Fabio Stergulc, Università di Udine
Source: IPM Images

Phyllosticta sphaeropsoidea Ellis & Everh. 1883

This fungus is widely distributed in temperate regions. It causes dryness of horse-chestnut leaves or leaf blotch of horse-chestnut. Infections result in red-brown necrotic areas on the leaves with characteristic yellow edges.

Synonyms:
Botryosphaeria aesculi
Guignardia aesculi
Laestadia aesculi
Phyllosticta paviae

• Other images of Phyllosticta sphaeropsoidea (IPM Images - click to enlarge)
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  cross-section of pycnidium

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  conidia with mucoid appendages