Sphaeropsis Blight symptoms on Pine

IllustrationSphaeropsis Blight (fungus - Sphaeropis sapinea): Was called Diplodia blight until name was changed in 1980. Presently, Sphaeropis blight only is considered significant on Afghan pine grown for Christmas trees in the western part of Texas. Infection takes place in spring under wet conditions. Causes severe shoot dieback. Chemical control has not been highly effective.
January, 1995