Rose Rosette Disease Summit in Newark, DE April 15-16

Steve Hutton - President and CEO of Star Roses and Plants/Conard-Pyle Dr. Michael Dobres - Managing Director of Nova Flora LLC Kathleen Case, Facilitator, Cindy Zook Associates Dr.Thomas Bewick - USDA NIFA, National Program Leader for Horticulture
Steve Hutton – President and CEO of Star Roses and Plants/Conard-Pyle
Dr. Michael Dobres – Managing Director of Nova Flora LLC
Kathleen Case, Facilitator, Cindy Zook Associates
Dr.Thomas Bewick – USDA NIFA, National Program Leader for Horticulture

A two day national Rose Rosette Disease Summit was held in Newark, DE April 15 and 16, with researchers from across the country meeting to discuss the disease, and plans for future research.  Rose rosette disease (RRD) is caused by the rose rosette virus, carried by a tiny eriophyid mite.  The Summit was organized by Dr. Michael Dobres of the Conard-Pyle Company and Dr. Tom Evans of University of Delaware, and sponsored by the All-America Rose Selections and the Garden Rose Council, Inc. The conference included a talk given by Nancy Gregory of UD Cooperative Extension on occurrence and mapping of the disease. RRD has been seen in Mid-Atlantic States since approximately 2001, originally observed on multiflora rose in the landscape. In recent years, RRD has been identified on cultivated roses, including Knockout rose, and has also been identified in public gardens.  University scientists, plant breeders, Cooperative Extension personnel, USDA representatives, private consultants, and rose growers discussed the need for good diagnostic tools, accurate mapping, cultural controls, as well as breeding for resistance. Current control strategies include keeping roses in good vigor, pruning, mite control, and cultural controls such as reducing water on leaves.

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