Elm: Bacterial wetwood (Slime flux) Categories: Elm Elm Diseases Ornamental trees Ornamentals Last review date: 2026-05-04 08:52 Last edit date: Elm bacterial wetwood (slime flux) Photo by: R.S. Byther Biology Wetwood or slime flux is a bacterial infection common in elm and poplar. The infection causes production of large amounts of moisture in the wood […]
Elm: Dutch elm disease Categories: Elm Elm Diseases Ornamental trees Ornamentals Last review date: 2026-05-04 09:39 Last edit date: Dutch elm disease Photo by: C.R. Foss Biology Dutch elm disease is a fungal infection transmitted by elm bark beetles. Bark beetles carry disease spores on their bodies and infect trees when they feed. Leaves above […]
Elm: Nectria canker Categories: Elm Elm Diseases Ornamental trees Ornamentals Last review date: 2026-05-04 12:04 Last edit date: Nectria canker fruiting bodies on branch Photo by: R.S. Byther Biology Nectria canker is a fungal disease often found on twigs and branches that have been weakened by drought, frost damage, insect damage, or other diseases. Cankers […]