Ash yellows causes substantial growth reduction, decline, and mortality of white ash in the Northeastern United States.
Green ash appears to be more tolerant of ash yellows.
Symptoms similar to those of ash yellows have been reported in Georgia and Louisiana. Trees of all ages and sizes in landscape plantings, hedgerows, and forests are susceptible. Identifying the Disease. Sustained infections can cause branch dieback, thin chlorotic crowns, epicormic sprouting, bark cracks, early fall coloration, and premature death. These decline symptoms, however, can develop from other causes.