Relative Susceptibility of Selected Apple Cultivars to Powdery Mildew Caused by <i>Podosphaera leucotricha</i>

Fig. 1. Powdery mildew lesions on dormant apple shoots. Photo by A. B. Groves.



Image from Plant Health Progress article:
Relative Susceptibility of Selected Apple Cultivars to Powdery Mildew Caused by Podosphaera leucotricha