Table of apple cultivar susceptibility to the quince rust fungus, Gymnosporangium clavipes
Gymnosporangium clavipes  

 

Table of apple cultivar susceptibility to the quince rust fungus, Gymnosporangium clavipes.

Apple cultivar Quince rust
susceptibility ratingz		   Apple cultivar Quince rust
susceptibility ratingz
Arkansas Black HS   Mutsu R
Baldwin R   Northern Spy R
Ben Davis R   Paulared R
Cortland S   Puritan S
Delicious HS   Quinte R
Empire R   Redfree R
Golden Delicious S   Rhode Island Greening R
Grimes Golden R   Rome Beauty HS
Idared R   Spartan R
Jonagold S   Spigold S
Jonamac S   Spijon S
Jonathan R   Stayman S
Lodi R   Wealthy R
Macoun R   Winesap S
McIntosh R   Yellow Transparent R
Milton R   York Imperial R

zR = 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 called for.

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 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.

Aldwinckle, H. S. 1974. Field susceptibility of 41 cultivars to cedar apple rust and quince rust. Plant Disease Reporter 58:696-699.