First Report of Powdery Mildew on <i>Caragana arborescens</i> in Minnesota and North Dakota Caused by <i>Microsphaera</i> (<i>Erysiphe</i>) <i>palczewskii</i>

First Report of Powdery Mildew on <i>Caragana arborescens</i> in Minnesota and North Dakota Caused by <i>Microsphaera</i> (<i>Erysiphe</i>) <i>palczewskii</i>

Fig. 4. Ascospore formed by M. palczewskii.

Image from Plant Health Progress article:
First Report of Powdery Mildew on Caragana arborescens in Minnesota and North Dakota Caused by Microsphaera (Erysiphe) palczewskii