Pear Cultivar Susceptibility

Pear (Pyrus spp.) — Cultivar Susceptibility

Cultivar

Fire Blight*

Scab

Powdery Mildew

Fabraea Leaf Spot

Rust**

D’Anjou

S

S

S

R

0

Bartlett
(Williams)

S

S

R

R

0.5

Bosc

S

I

R

R

0.5

Brandford

I

R

?

R

0.5

Comice

S

S

S

I

1

Forelle

S

S

?

R

0.5

Seckel

I

S

R

R

0.5

Starkrimson (red
Clapps’s)

S

S

R

R

0

S=Susceptible, I = Intermediate, R = Resistant.

* Van Der Zwet, T., Orolaza-Halbrendt, N., and Zeller, W. 2012. Fire Blight: History, Biology, and Management. APS Press/American Phytopathological Society.

** 0 to 10 scale where 0 = resistant and 10 = very susceptible. Field observations, Pscheidt and Postman, 2015.