Birch – Septoria
Septoria sp.
Birch – Septoria Signs & Symptoms
- Infected leaves
- Pycnidia in leaf tissue
- Top view of pycnidia in leaf tissue showing ostioles. Top and bottom light.
- Pycnidia in leaf tissue. Two are extruding a cirrus of conidia
- Pycnidia in leaf tissue with some extruding cirri of conidia, not to be confused with straight, white plant hairs.
Birch – Septoria Pathogen
- Conidia
- Poor vertical section of a pycnidium with conidia emerging