Powdery Mildew
Podosphaera leucotricha
fungal disease.
Surface-feeding fungal disease that distorts new growth and reduces yields.
Biology and conditions
Detailed guidance for this section is being prepared. Check back soon.
Symptoms
- White powdery growth on shoots and leaves
- Distorted new growth
- Reduced flower bud quality
Controls
- Resistant varieties
- Sulfur or potassium bicarbonate sprays
- Pruning for airflow
- Avoid excessive nitrogen
Resistant varieties
- Liberty
- Williams Pride