A New Boxwood Blight in the U.S.

As if boxwoods didn’t have enough problems already with diseases caused by Phytophthora and Volutella, a new boxwood blight, caused by the soilborne fungus Cylindrocladium pseudonaviculatum (= Cylindrocladium buxicola), was confirmed on nursery plants in North Carolina last month. It was subsequently found in a nursery in Virginia and a residential landscape in Connecticut.  The first symptoms of the disease are leaf spots that progress to twig blight and rapid death of the plant.

 

 

For more information, please see: http://www.ppws.vt.edu/~clinic/alerts/11-04-11_boxwood_blight_alert.pdf.  If you suspect that this disease may be affecting your boxwoods, please send samples to the LSU AgCenter Plant Diagnostic Center for confirmation.

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About Don Ferrin

I am an associate professor and extension specialist in the Department of Plant Patholgy & Crop Physiology with the LSU AgCenter in Baton Rouge. I have statewide responsibility for issues and educational programs related to diseases of all horticultural crops in Louisiana.
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