Monterey pine, <i>Pinus radiata,</i> branch tips showing discolored needles at the infection site due to pitch canker, a disease caused by the fungus <i>Fusarium circinatum.</i>.
Monterey pine, Pinus radiata, branch tips showing discolored needles at the infection site due to pitch canker, a disease caused by the fungus Fusarium circinatum..
Credit: Thomas R. Gordon