Volutella fruiting bodies are salmon-colored, not white. Volutella Blight ( Volutella buxi) causes browing of foliage but infected plants do not have circular leaf lesions and lack black markings on stems.Secondary infection by Volutella blight ( Volutella buxi) or other pathogens may occur.Root system remains intact but it is not recommended to retain damaged plant material because the disease can spread to healthy plants. Boxwood blight is unsightly and can lead to near-complete defoliation.Under high humidity, white spore masses (sporodochia) may be visible on stem tissue and the undersides of leaves.Shoots with multiple dark brown or black lesions (cankers) that are diamond-shaped or linear.Foliage becomes blighted, turning light brown.Leaves develop brown spots with dark borders, often in a circular pattern, eventually expanding to cover the entire leaf.Prior to its discovery in the USA, boxwood blight was known in New Zealand, the UK and Europe since the 1990s.Since then, it has been found in many states in the east, as well as in Ohio, Oregon, and in Canada. This disease was first discovered in the USA in Fall 2011, on boxwood in Connecticut and North Carolina.Buxus sempervirens may be more susceptible than other species. Susceptibility of other plants in the Boxwood family (Buxaceae) is unknown.
Laboratory tests by the Connecticut Agricultural Experiment Station indicate that the ground cover Pachysandra terminalis) is also susceptible. Scientific Name: Cylindrocladium pseudonaviculatum ( Cylindrocladium buxicola, Calonectria pseudonaviculata)Ĭommon Name: Boxwood Blight, Box Blight, Cylindrocladium box blight, blight disease of boxwood, boxwood leaf dropīoxwood species ( Buxus spp.), including cultivars, Sweet Box ( Sarcococca spp.).
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