Dutch elm disease is a fungal infection of the vascular system of elm trees. The fungus, Ophiostoma ulmi, is spread from diseased to healthy trees by elm bark beetles. Fungal spores adhering to the beetles are introduced to the tree through feeding...

Dutch elm disease is a fungal disease of elm trees which is spread by the elm bark beetle. Although believed to be originally native to Asia, it has been accidentally introduced into America and Europe, where it has devastated native populations of elms...

The two fungi that cause Dutch elm disease (DED) are non-native to North America. Ophiostoma ulmi first arrived on logs from Europe prior to 1930. In the 1970s, a new wave of DED swept across the United States and was eventually determined to...

Twice in this century, widespread epidemics of Dutch elm disease have devastated shade trees like those that frame the national Mall and grace countless residential lawns. Now a scientist searching the western Himalayas for the origins of the tree-killing fungus may have turned up...

Hybrid elms resistant to Dutch elm disease are being planted around town and around the state, the start of a potential comeback for the devastated species in Wyoming.Dutch elm disease began wiping out large elms in the United States more than 70 years ago. The...