Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Differential susceptibility of Malus spp. cultivars Robusta 5, Novole, and Ottawa 523 to Erwinia amylovora.

Abstract

Among 25 apple cultivars inoculated with 2 E. amylovora strs. 3 were highly resistant to str. Ea 273 but were susceptible to str. Ea 266. These comprised Robusta 5 and Novole, previously identified as fire blight-resistant, and Ottawa 523. The data indicate these cultivars are differentially susceptible to str. Ea 266.