Powdery mildew of strawberry, caused by Podosphaera aphanis, is a disease that infects all above-ground parts of the plant and is especially common on leaves, fruit and stems. The disease is commonly associated with white, visible mycelium. This report evaluates the host resistance to powdery mildew in 20 strawberry genotypes under greenhouse conditions in San Luis Obispo, California in spring of 2024. Disease incidence and severity were evaluated for all genotypes. Results of this study will inform strawberry growers in selecting resistant cultivars for optimized production.
Simard et al. (Wed,) studied this question.