First Report of <i>Fusarium circinatum</i>, Causal Agent of Pitch Canker Disease, from the Roots of Mature Aleppo Pines in California

Fig. 2. Resin-soaked sapwood was observed under bark of primary-woody roots and root collars. Fusarium circinatum was always isolated from such lesions.



Image from Plant Health Progress article:
First Report of Fusarium circinatum, Causal Agent of Pitch Canker Disease, from the Roots of Mature Aleppo Pines in California