Abstract
Phytophthora blight (Phytophthora capsici) is an important disease of bell peppers, causing crown, root, and fruit rot as well as foliar lesions. Substantial yield losses can result from either plant death or fruit rot. Host resistance is an effective management strategy for the root and crown rot phase of the disease, and a number of commercially-available pepper cultivars are described by the supplier as intermediately resistant. In field trials conducted over 5 years, the bell pepper cultivars Archimedes, Aristotle, Intruder, and Paladin were found to be the most resistant to a single isolate of P. capsici from New York State (NY 0664-1). Cultivars ACR285, Declaration, PS 09941819, Revolution, and Vanguard showed intermediate levels of resistance. Escalade, Karisma, Keystone Giant, King of the North, and Red Knight were highly susceptible to NY 0664-1. This information will be useful to growers selecting cultivars to plant in fields with a history of Phytophthora blight. Accepted for publication 24 October 2013. Published 30 January 2014.
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