Boxwood Blight Confirmed in Delaware

Boxwood blight caused by the fungus Cylindrocladium pseudonaviculatum was confirmed in a retail nursery in Delaware on June 19, 2013.

Leaf spot on boxwood infected with the boxwood blight pathogen
Leaf spot on boxwood infected with the boxwood blight pathogen

 

Black streaks on twigs of boxwood with boxwood blight
Black streaks on twigs of boxwood with boxwood blight

Boxwood blight was first identified in the U.K. in 1994 and then in the U.S. in October of 2011. The disease has been identified in nurseries and landscapes on boxwood and pachysandra. It has been confirmed in NC, CT, VA, RI, MD, MA, OR, NY, PA, OH, and Delaware. It was identified in the UD Plant Diagnostic Clinic in 2012, but came from plants in Maryland. In June of 2013, boxwood blight was identified in a retail nursery in Delaware.

See the new fact sheet from University of Delaware Cooperative Extension at: http://extension.udel.edu/factsheet/boxwood-blight-caused-by-the-fungus-cylindrocladium-pseudonaviculatum/

See the links below from American Nursery and Landscape Association and Connecticut Agricultural Expt Station:

www.BoxwoodBlight.org

http://www.ct.gov/caes/cwp/view.asp?a=3756&q=500388

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