HortScience (1991) 26, 880-882

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Steven K. Whitesides and Robert A. Spotts (1991)
Susceptibility of pear cultivars to blossom blast caused by Pseudomonas syringae
HortScience 26 (7), 880-882
Abstract: Conditions were established for inducing pear (Pyrus communis L.) blossom blast caused by Pseudomonas syringae (Ps) on detached shoots. Highest incidence of infection followed occurrence of a major exotherm in the presence of Ps suspended in water drops on blossom tissue. Eight pear cultivars were evaluated for susceptibility to blossom blast, with the red-fruited 'Beurré d'Anjou' sports 'Gebhart' and 'Columbia' least susceptible and 'Doyenné du Cornice', 'Beurré d'Anjou', and 'Beurré Bosc' most susceptible.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)


Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Pseudomonas syringae Pear (Pyrus)
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