Table of Apple Cultivar Susceptibility to the Fire Blight Bacterium
Erwinia amylovora  

 

Table of apple cultivar susceptibility to the fire blight bacterium, Erwinia amylovora
(Source of information and credits provided at the bottom of the page.)

Apple cultivar Fire blight
resistance ratingz
Apple cultivar Fire blight
resistance ratingz
Arkansas Black MR Mollies Delicious S
Baldwin S Monroe S
Barry HS Mutsu (Crispin) HS
Beacon S Niagara HS
Ben Davis HS Nittany HS
Braeburn HS Northern Spy S
Britemac MR Northwestern Greening MR
Burgundy HS Paulared HS
Carroll MR Priscilla MR
Cortland S Puritan S
Delicious MR Quinte S
Earligold S Raritan HS
Early McIntosh MR Redfree S
Empire MR Red Yorking HS
Fuji HS Rhode Island Greening HS
Gala HS Rome Beauty HS
Ginger Gold HS Scotia S
Gloster S Spartan S
Golden Delicious S Spigold HS
Granny Smith HS Spijon S
Grimes Golden S Stark Bounty MR
Gravenstein Holly S Stark Splendor MR
Idared HS Starkspur Earliblaze S
Jamba MR Starr HS
Jerseymac S Stayman S
Jonagold HS Summer Rambo S
Jonamac S Summerred S
Jonathan HS Turley MR
Julyred S Twenty Ounce HS
Liberty MR Viking MR
Lodi HS Wayne S
Macoun S Wealthy S
Maiden Blush S Wellington MR
McIntosh S Winesap S
Melba MR Yellow Transparent HS
Milton S York Imperial HS

zMR = Moderately resistant. Control only needed with fire blight susceptible rootstocks or under high disease pressure.
S = susceptible. Control usually needed when conditions are favorable for infection.
HS = highly susceptible. Control always needed when conditions are favorable for infection. These cultivars should receive first priority when control is called for.


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

van der Zwet, T., and S. V. Beer. 1995. Fire blight - Its nature, prevention, and control. USDA Agriculture Information Bulletin Number 631.

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 managment 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.