There are two kinds of spittlebugs, pine and meadow. Meadow spittlebugs commonly attack clover, flowers, and arborviae whereas pine spittlebugs attack spruces, firs, scots, austrian, and white pines. These insects are small as nymphs and protect themselves by secreting a frothy, white mass which is actually their secretion from sucking sap and other nutrients from the plant. This spittle protects them from the sun and other insects. While the spittle is unappealing to the sight, the spittlebug does little damage if in small quantities.
Severe infestation can cause leaf, branch, or even plant death.
If necessary, insecticidal soap or horticultural oil will control these if coverage is thorough. A broad-spectrum insecticide can also be used. When using pesticides, read and follow label directions. The information given herein is supplied with the understanding that no discrimination is intended and no endorsement by the Purdue University Cooperative Extension Service is implied. Any person using products listed assumes full responsibility for their use in accordance with current direction of the manufacturer.