| Disease | Zone Adapatation¹ | ||||||||||
| Variety | Pollination | Resistance | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9² | 10 |
| Bartlett | B | FB- | · | · | · | · | |||||
| Bosc | B | FB- | · | · | · | · | |||||
| Clapps Favorite | B | FB- | · | · | · | ||||||
| Comice | B | (FB) | · | · | · | · | |||||
| D'Anjou | B | FB- | · | · | · | ||||||
| Kieffer³ | A | FB | · | · | · | · | · | · | |||
| Moonglow | A | FB+ | · | · | · | · | |||||
| Orient³ | A | FB+ | · | · | · | · | · | ||||
| Seckel | C | FB | · | · | · | · | |||||
| ¹ Based on USDA Plant Climate Zone Map. | |||||||||||
| ² California only. | |||||||||||
| ³ Grown in Florida. |
POLLINATION KEY
DISEASE KEY
A Pollinate with another A.
FB+ Resistant to fireblight.
B Pollinate with any B.
FB Fairly resistant to fireblight.
C Pollinate with any B except Bartlett.
(FB) Moderately susceptible to fireblight.
FB- Highly susceptible to fireblight.