First Report of Powdery Mildew on Potato Caused by <i>Leveillula taurica</i> in North America

Fig. 2. Erysiphe orontii conidiophore with four conidia, adjacent to plant trichome, viewed with stereomicroscopy.



Image from Plant Health Progress article:
First Report of Powdery Mildew on Potato Caused by Leveillula taurica in North America