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

Fig. 6. Apple fruit showing russetting caused by powdery mildew blossom infection.



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