First, it was Boxwood Dieback, then Boxwood Decline, then Boxwood Mites, Winter Burn, Nematodes, and finally Boxwood Blight. This time it’s for real! Boxwood Blight is an extremely dangerous disease that will kill and spread to all Boxwoods on a property. Yes, some species are more resistant to the disease; however, they could be vectors of the disease, waiting to spread to other plants.