Table 4-3. Crabapple resistance to scab, fire blight, rust, or powdery mildew.

	Scab	Fire Blight	Apple Rust	Powdery Mildew
Malus 'Adams'	Good	Good	Excel.	Good
M. 'Adirondack'	Excel.	Excel.	Excel.	Excel.
M. baccata 'Jackii'	Excel.	Fair	Excel.	Good
M. 'Baskatong'	Good	Excel.	Excel.	Good
M. 'Callaway'	Good	Good	Good	Good
M. 'David'	Good	Good	Excel.	Excel.
M. 'Dolgo'	Good	Good	Excel.	Excel.
M. 'Donald Wyman'	Good	Fair	Excel.	Good
M. floribunda	Good	Good	Fair	Good
M. floribunda 'Indian Summer'	Fair	Good	Excel.	Excel.
M. floribunda 'Jewelberry'	Good	Good	Excel.	Excel.
M. floribunda 'Louisa'	Good	Good	Good	Good
M. floribunda 'Molter Lava'	Good	Fair	Good	Fair
M. f/oribunda 'Prairiefire'	Excel.	Excel.	Excel.	Excel.
M. floribunda 'Professor Sprenger'	Good	Good	Excel.	Good
M. f/oribunda 'Robinson'	Fair	Excel.	Excel.	Excel.
M. sargentii	Good	Good	Excel.	Excel.
M. sargentii 'Sentinel'	Good	Good	Excel.	Excel.
M. sargentii 'Sugar Tyme'	Good	Good	Excel.	Excel.
M. sargentii 'White Cascade'	Good	Excel.	Fair	Excel.

Source: North Carolina Cooperative Extension Service, Horticulture Information Leaflet, 1992.