Ash Diseases

Ash: Anthracnose

Ash: Anthracnose Categories: Ash Ash Diseases Ornamental trees Ornamentals Last review date: 2026-08-28 02:15 Last edit date: Ash anthracnose Photo by: R.S. Byther Biology Anthracnose is a fungal disease of leaves and twigs of many ash species, including black, green, red, velvet, and white ash. Symptoms of anthracnose arise in spring on succulent, expanding shoots […]

Ash: Nectria canker

Ash: Nectria canker Categories: Ash Ash Diseases Ornamental trees Ornamentals Last review date: 2026-02-12 08:06 Last edit date: Nectria canker fruiting bodies 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 are initially […]