Life History,Host Range and Distribution of Septotinia podophyllina

Viable conidia of Septotinia podophyllina are found on sclerotia on dead last year's leaves of Populus in spring. Prunus serotina is described as a new host. Inoculation experiments on leaves in petri-dishes with Populus- and Prunus isolates demonstrated no host-specificity. A possible introduction of the organism from North-America, its native area, into Europe and Asia is considered.