Non-Chemical Management
- Many crabapple cultivars are resistant to scab including 'Bob White', 'Centennial', *'Christmas Holly', 'David', 'Indian Summer', 'Jewelberry', *'Molten Lava', 'Ormiston Roy', *'Professor Sprenger', 'Profusion', 'Red Jewel', and *'White Angel'. Malus floribunda, and M. Tschonoskii are also resistant. (*rated as good to excellent scab and powdery mildew resistance. See EB1809.)
- Plant in full sun.
- Avoid overhead irrigation.
- Rake and destroy fallen leaves.
Select non-chemical management options as your first choice!