Summary: The overall objectives of this project were: 1. Estimate incidence of contamination of d’Anjou pear fruit cultivated in four growing districts in the Pacific Northwest with Erwinia amylovora. 2. Evaluate capacity of Erwinia amylovora to colonize or persist on pear fruit surfaces. 3. Evaluate internal fruit contamination by Erwinia amylovora on trees that were diseased in the spring and remained diseased through the summer until harvest. 4. Evaluate internal and external survival of Erwinia amylovora on wounded fruit in cold storage
