Horticulturalists are testing several methods of treatment, but the current recommendation is to remove and destroy the plant by burning it or bagging and disposing of it. Avoid planting boxwoods in partly shaded areas.Many States have historical gardens containing boxwoods, which the box tree moth could devastate. Unfortunately, these plants were lost to boxwood blight. Never compost them unless you are sure your plants are disease-free. Why we care: Boxwood blight is a serious fungal disease that attacks several genera in the plant family Buxaceae this includes boxwood (Buxus spp.). Older boxwoods can hold great historical value, such as the 150-year-old boxwoods at the Carl Sandburg Home National Historic Site in North Carolina. Destroy or dispose of boxwood clippings.Scrub them thoroughly with soap and water and dry them before putting them away. Dip them in a solution of nine parts water and one part bleach for ten seconds and then allow them to air dry. Disinfect your pruners between plants.American and English boxwood (Buxus sempervirens) are most susceptible to. Clean off the soles of your shoes before moving from one part of the garden to another. Boxwood blight is caused by the non-native fungus Calonectria pseudonaviculata.Stay away from box and pachysandra plants when they are wet.Take these precautions when working around boxwoods and pachysandra: There is no cure for boxwood blight, so gardeners must rely on disease prevention to protect their plants. Secondary infections usually attack and kill the plant. Plants don’t usually die of boxwood blight disease, but after repeatedly losing its leaves, it becomes so weak that it has no resistance to other diseases. The roots aren’t affected, so the shrub may regrow.
The shrub then drops most, or all, of its leaves and the twigs begin to die back. The first sign is round, brown spots on the leaves. Boxwood blight symptoms are similar to the symptoms of other diseases that infect boxwoods. It has since spread as far north as Massachusetts and can be found in isolated areas across the U.S. until October 2011, where it was detected in a nursery in North Carolina. in the mid 1990’s, the disease didn’t make its way to the U.S. The disease is called box blight in the U.K., and you may also hear it referred to as boxwood leaf drop in the U.S.ĭiscovered in the U.K. The organism also goes by the pseudonyms Cylindrocladium pseudonaviculatum or Calonectria pseudonaviculata. What is Boxwood Blight?īoxwood blight is a fungal disease caused by the organism Cylindrocladium buxicola. Find out about the prevention and treatment of boxwood blight in this article. Boxwood blight is a relatively new plant disease that ruins the appearance of boxwoods and pachysandras.
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