Rhabdocline needle cast on Douglas fir. Notice red spots and traverse banding on infected needles. Photo by: John W. Schwandt, USDA Forest Service, Bugwood.org.

Rhabdocline needlecast on Douglas fir. Photo by: Bob Mulrooney, Plant Pathology Specialist, University of Delaware.

Symptoms of Rhizosphaera needle cast. Photo by: Joseph O’Brien, USDA Forest Service, Bugwood.org.

Healthy needle (bottom) and needle infected (top) with Rhizosphaera needle cast. Photo by: Michael Kangas, NDSU – North Dakota Forest Service, Bugwood.org.

Fruiting bodies of Rhizospaera needle cast. Photo by: Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org.