First Report of Powdery Mildew of Fringed Willowherb (<i>Epilobium ciliatum</i>) Caused by <i>Podosphaera epilobii</i> in North America

Fig. 2. Conidiophores of Podosphaera epilobii forming chains of conidia.



Image from Plant Health Progress article:
First Report of Powdery Mildew of Fringed Willowherb (Epilobium ciliatum) Caused by Podosphaera epilobii in North America