Table of Apple Cultivar Susceptibility to Powdery Mildew

Apples August 29, 2011 Print Friendly and PDF

Powdery mildew on apple is a fungus disease caused by Podosphaera leucotricha. It can be a persistent disease of susceptible apple cultivars wherever apples are grown. It is the only fungal apple disease that is capable of infecting without wetting from rain or dew. Mildew severity and the need for control measures are related to cultivar susceptibility and intended fruit market. The table below lists the relative powdery mildew susceptibility of numerous apple cultivars. 

 
Apple cultivar Powdery mildew susceptibility rating (z) Apple cultivar Powdery mildew susceptibility rating (z)
Arkansas Black R Monroe HS
Ambrosia R Mustu (Crispin) S
Arlet S Niagara R
Baldwin HS Nittany R
Ben Davis S Northern Spy S
Braeburn S Orin S
Britemac HS Raulared HS
Cameo S Pinova S
Chinook S Prima R
Cortland HS Prime Gold HS
Cox's Orange Pippin S Princess S
Creston S Priscilla R
Crimson Crisp HS Pristine S
Cripps Pink (Pink Lady) S Puritan S
Dayton R Quinte S
Delicious R Redfree S
Empire S Rhode Island Greening S
Enterprise R Rome Beauty HS
Fuji R Runkel S
Gala R Sansa S
Gala Supreme R Scarlet O'Hara S
Ginger Gold HS Senshu S
Golden Delicious S Shizuka S
Golden Supreme S Sir Prize R
GoldRush S Spartan R
Granny Smith HS Spigold S
Gravenstein Holly HS Spijon S
Grimes Golden R Stayman HS
Hampshire S Summerred S
Honeycrisp S Suncrisp S
Idared HS Sundance S
Jerseymac S Sunrise S
Jonafree R Twenty Ounce S
Jonagold S Wayne S
Jonamac S Wealthy S
Jonathan HS Wellington S
Julyred HS Winesap R
Liberty S Yellow Transparent R
Lodi R Yataka R
Lord Lambourne R York Imperial S
Macoun S Zestar! R
McIntosh S    
Milton S    
(z)

R = resistant. Control only needed under high disease pressure.

S = susceptible. Control usually needed where disease is prevalent.

HS = highly susceptible. Control always needed where disease is prevalent. These cultivars should receive first priority when control is required.

See Powdery Mildew on Apple for more information. 


Data compiled by K. S. Yoder and A. R. Biggs from personal observations and the following sources:

Management Guide for Low-Input Sustainable Apple Production, A publication of the USDA Northeast LISA Apple Production Project and Cornell University, Rodale Research Center, Rutgers University, University of Massachusetts, and University of Vermont. 1990. (Apple disease management section by D. A. Rosenberger, Cornell University).

A Grower's Guide to Apple Insects and Diseases in the Southeast. 1993. Alabama Cooperative Extension Service, Auburn University, Circular ANR-838. Ed. J. R. McVay, J. F. Walgenbach, E. J. Sikora, and T. B. Sutton.

Aldwinckle, H. S. 1974. Field susceptibility of 51 apple cultivars to apple scab and apple powdery mildew. Plant Disease Reporter 58:625-629.

Yoder, K. S., R. E. Byers, A. E. Cochran II, W. S. Royston, M. A. Stambaugh, and S. W. Kilmer. 1994. Evaluation of scab-resistant apple cultivars for cedar-apple rust and mildew susceptibility. 1992-93. Biological and Cultural Tests for Control of Plant Diseases 9:11.

Biggs, A. R., Yoder, K. S., and Rosenberger, D. A. 2009. Relative susceptibility of selected apple cultivars to powdery mildew caused by Podosphaera leucotricha. Plant Health Progress doi:10.1094/PHP-2009-1119-01-RS.

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