Click on the text link under each photo to see a larger picture.

Pitch canker on a sapling Monterey pine

Photo credit: Donald Owen, California Department of Forestry and Fire Protection, Bugwood.org

Resinous stem canker on Virginia pine

Photo credit: David J. Moorhead, University of Georgia, Bugwood.org

Internal resin impregnation of infected xylem tissue of Virginia pine

Photo credit: Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org

Infected seedling of sand pine

Photo credit: Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org