White Foam on Redbud

White Masses on the Stems of Redbuds, Wafer-Ash, and Other Trees

During yesterday’s Greater Cincinnati BYGLive! Virtual Diagnostic Walk-About, Dave Shetlar (Professor Emeritus, OSU Entomology) showed pictures he’d taken late last week in central Ohio of snowy-white masses on the stems of redbuds (Cercis canadensis). The agglomerations could easily be mistaken for mealybugs, felt scales, or soft scales, particularly cottony scales.
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Joe Boggs