Pestalotiopsis guepinii (Desmazières) Steyaert, 1949

rhododendron gray blight

on Rhododendron

Rhododendron ponticum, Veluwezoom, 27.xi.2021 © Kees van Oorde

leaves killed by the fungus

part of the upper side of a leaf, with acervuli

conidia

conidium; scale interval 2.5 µm. De appendages at the tip are up to 30 µm long,

host plants

Ericaceae, monophagous

Rhododendron ponticum.

references

Maharachchikumbura, Guo, Chukeatirote, ao (011a).