Boxwood Blight
Boxwood blight
4 host plants
Boxwood blight causes leaf spots with dark centers and yellow halos on boxwood foliage. You'll notice rapid defoliation and stem cankers that girdle branches. The disease spreads via water splash and contaminated pruning tools. Remove infected plants immediately, disinfect all tools, and improve air circulation around plantings.
To limit spread and movement of the pathogen, all confirmed infected plants should be destroyed. Isolate and contain new shipments of boxwood for at least a 30-day observation period.