Elm: Bacterial wetwood (Slime flux) categories: Elm Elm Diseases Ornamental trees Ornamentals last review date: 2025-07-11 10:02 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 of trunks or large […]
Elm: Dutch elm disease categories: Elm Elm Diseases Ornamental trees Ornamentals last review date: 2025-07-11 10:03 Dutch elm diseasePhoto 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 the infection site turn […]
Elm: Nectria canker categories: Elm Elm Diseases Ornamental trees Ornamentals last review date: 2025-07-11 10:04 Nectria canker fruiting bodies on branchPhoto 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 are initially distinguished by […]