Phytophthora Root Rot and Stem Canker Found on Nordmann and Subalpine Fir in Norwegian Christmas Tree Plantations

Fig. 5. Seven-year-old subalpine fir (Abies lasiocarpa) grown for the Christmas tree market dying after infection by Phytophthora megasperma. Photo by V. Talgø.



Image from Plant Health Progress article:
Phytophthora Root Rot and Stem Canker Found on Nordmann and Subalpine Fir in Norwegian Christmas Tree Plantations