RT Journal Article SR Electronic T1 A Description Of Declining And Blighted Pin Oaks In Eastern Virginia JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 155 OP 158 DO 10.48044/jauf.1986.033 VO 12 IS 6 A1 D. N. Appel A1 R. J. Stipes YR 1986 UL http://auf.isa-arbor.com/content/12/6/155.abstract AB Endothia gyrosa, the pin oak blight fungus, commonly colonizes pruned branches and other wounds on pin oaks in Eastern Virginia communities. Sometimes the disease causes serious losses of valuable shade trees. In one outbreak of pin oak blight, diseased trees had a greater rate of decline in increment growth over a 25 yr. period than healthy, uninfected trees. As a result of this growth decline and the remedial pruning needed to remove dead and injured branches, blighted trees had smaller heights and diameters than healthy, uninfected trees. No single environmental factor, i.e., nutrients, precipitation, or root disturbance caused by the installation of underground utilities, was responsible for the occurrence of pin oak blight.