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Problem Bugs for Hydrangeas

The rapidly growing hydrangea is a member of the saxifrage family. Hydrangeas have deciduous vines and shrubs, and bloom in the summer and fall. The leaves are large with flowers that may be red, white, blue or pink.
  1. Black Vine Weevil

    • The hydrangea is affected by several types of bugs. This includes the black vine weevil. This bug feeds on the small roots of the hydrangea, then progresses to chewing the bark.

    Rose Chafer Beetle

    • The rose chafer beetle sometimes feeds on hydrangeas by skeletonizing the leaves. Additionally, they feed on the flowers and leave excrement.

    Plant Bugs

    • Two types of plant bugs affect the hydrangea. The tarnished plant bug and the four-lined plant bug lay eggs in the soft stem of the hydrangea. They also suck sap from tender leaves and leave sunken areas where the leaves were punctured.

    Other Bugs

    • Several other bugs affect hydrangeas, according to the University of California website. This includes aphids, spider mites, scale insects, nematodes, foliage-feeding caterpillars and whiteflies.