Home

Bark removed from the basal trunk and root crown of a conifer exposing dark brown, resin-soaked wood and white mycelia of Heterobasidion root disease.

Bark removed from the basal trunk and root crown of a conifer exposing dark brown, resin-soaked wood and white mycelia of Heterobasidion root disease, <i>Heterobasidion annosum</i>. Credit: USDA Forest Service - Region 8 - Southern, USDA Forest Service, Bugwood.org<br />Licensed under a <a href="https://creativecommons.org/licenses/by/3.0/us/">Creative Commons Attribution 3.0 License</a>
Credit: USDA Forest Service - Region 8 - Southern, USDA Forest Service, Bugwood.org
Licensed under a Creative Commons Attribution 3.0 License
IPM Logo
Twitter Facebook Instagram YouTube LinkedIn
Home and Landscape: Instagram|Twitter|Facebook
Use Permissions and Citations | Nondiscrimination Statement | Acknowledgements | Accessibility | Privacy Statement | Staff-Only Page | Contact UC IPM | Feedback