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Relative Susceptibility of Selected Apple Cultivars to Powdery Mildew Caused by Podosphaera leucotricha

A. R. Biggs, K. S. Yoder, and D. A. Rosenberger

November 2009


In 1994, a regional project called NE-183 was initiated in 18 states and two Canadian provinces to examine the performance of new apple cultivars in replicated trials under a wide range of climatic and edaphic conditions. A primary objective was to evaluate horticultural qualities and pest and pathogen susceptibility of new apple cultivars, strains, and advanced selections and to determine the pros and cons of these cultivars. This study reports the relative susceptibility of apple cultivars and selections to the powdery mildew pathogen.


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