Differential Susceptibility ofMalusspp. Cultivars Robusta 5, Novole, and Ottawa 523 toErwinia amylovora
- 1 January 1986
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 70 (11) , 1017-1019
- https://doi.org/10.1094/pd-70-1017
Abstract
Twenty-five applie cultivars were inoculated with two strains of E. amylovora to evaluate their fire blight susceptibility. Three cultivars were highly resistant to strain Ea 273 but were susceptible to strain Ea 266. These included Robusta 5 and Novole, which were previously identified as fire blight-resistant, and Ottawa 523. The data indicate these cultivars are differentially susceptible to strain Ea 266.Keywords
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