1. Large old canker on main stem.
2. Monterey pine exhibiting branch end dieback.
3. Internal resin soaking of infected branch end.
4. Resin flow from infection associated with pine cones.
5. Large main stem canker.
6. Resin flow from canker on main stem at base of tree.
7. Bark removed to examine infection at base of trunk.
8. Infection of mower damaged surface roots.

Frequently Asked Questions About Pitch Canker

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Healthy Monterey Pine
(Photo courtesy of Andrew J. Storer)