1. UC IPM
Infected Monterey pine, <i>Pinus radiata,</i> branch tips showing chlorotic and dead needles at the far end of a girdling lesion due to pitch canker, a disease caused by the fungus <i>Fusarium circinatum.</i>.
Infected Monterey pine, Pinus radiata, branch tips showing chlorotic and dead needles at the far end of a girdling lesion due to pitch canker, a disease caused by the fungus Fusarium circinatum..
Credit: Thomas R. Gordon