Sticky, Dripping Maples

Late last week, I came across plantings of red maples (Acer rubrum) in a commercial landscape in southwest Ohio that were dripping sticky, sugary, honeydew; the calling card of phloem-sucking insects. A close look revealed the trees were festooned with Calico Scale (Eulecanium cerasorum) and European Fruit Lecanium (Parthenolecanium corni).