Eutypella and Strumella Canker

Canker Diseases- - Hardwoods

Eutypella and Strumella Canker

14141411

Eutypella canker on small diameter maple stems.

14141412

Old Eutypella canker on main stem of maple.

14141420

Long-necked, black perithecia produced by Eutypella on the surface of the canker.

_________________________________________________________________________________________________

14141408

Strumella (or Urnula) canker on oak.

14141410

Young canker on oak stem caused by Strumella (or Urnula).

14141409

Ascocarps of Urnula.