Crabapple (Malus spp.) — Cultivar Susceptibility |
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Cultivar |
Apple Scab |
Fire Blight |
Powdery Mildew |
Reference |
Adams |
M-H1 |
H |
H |
A, B, C |
Bob White |
H |
M-H |
H |
A, B, E |
Centennial* |
H |
H |
? |
C, E |
Chestnut* |
M-H |
? |
? |
C |
Christmas Holly |
H |
H |
H |
A, B, C, D |
David |
H |
H |
H |
A, B, C, D |
Dolgo* |
L-M |
M-H |
H |
A, B, C, E |
Donald Wyman |
M-H |
H |
H |
A, B, C |
M. floribunda |
H |
H |
H |
A, C |
German* |
M-H |
? |
? |
C |
Indian Magic |
M |
H |
H |
A, B |
Indian Summer |
H |
H |
H |
A, C, D |
Jewelberry |
H |
H |
H |
A, B, C, D |
Manchurian |
? |
L |
? |
— |
Martha Dolgo* |
L |
? |
? |
C |
Molten Lava |
H |
H |
H |
A, B, C |
Ormiston Roy |
H |
L-H |
H |
A, B, C, E |
Prairie Fire |
M-H |
H |
H |
A, C, D |
Professor Sprenger |
H |
H |
H |
A, B, C, D |
Profusion |
H |
H |
M |
A, B, D |
Ralph Shay* |
M-H |
H |
L |
A, B, C, D |
Red Jewel |
H |
H |
H |
A, B |
M. sargentii |
M-H** |
H |
H |
A, B, C, D |
Silver Moon |
M-H** |
L-H |
H |
A, B, C, D, E |
Snowdrift |
M-H |
L |
H |
A, B, C, D |
Sugar Tyme |
M-H |
H |
H |
A, B, C, D |
M. tschonoskii |
H |
H |
H |
A, C, D |
Weeping Candied |
M |
? |
? |
C, D |
White Angel |
H** |
H |
H |
A, B, C, D |
Whitney* |
M-H |
? |
? |
C |
M. x zumi var. |
M-H |
H |
H |
A, B, C |
*Fruit is edible **Have remained scab free in Wooster, Ohio for over 33 years. 1H = High disease resistance; some leaves may be affected. M = Moderate disease resistance; leaves and shoots affected but no defoliation. L = Low disease resistance; heavy infection, defoliation. ? = Information not available. References (A) Benson, D.M. and B.I. Daughtry. 1993. Crabapple.In: Biological and Cultural Tests for Control of Plant Diseases. St. Paul, MN: APS Press. H = 0-1; M = 2; L = 3-4 in the evaluation of Benson et al. (B) Hartman, J., J. Doney, and R. McNiel. 1991. Crabapple. (C) Norton, R.A. and J. King. 1993. Crab Apples Revisited. (D) Unpublished field evaluations from the Pacific Northwest. (E) van der Zwet, T., Orolaza-Halbrendt, N. and Zeller, W. 2012. Fire Blight: History, Biology, and Management. APS Press.º |