Pine Needle Scale

Natural Habitat

Typically found on the needles of various pine species, spruce, fir, and Douglas-fir across North America.

Diet & Feeding

Plant juices; they utilize piercing-sucking mouthparts to feed on the sap from coniferous tree needles.

Behavior Patterns

The light-colored specks on the needles are the waxy armored shells of the female insects. They remain stationary under these covers once settled. In spring, crawlers (the mobile juvenile stage) emerge from under the mother's shell to find new feeding spots.

Risks & Benefits

They are a significant horticultural pest. Heavy infestations can cause needle yellowing, premature needle drop, and overall reduction in tree vigor or death in young trees. They do not pose a direct risk to humans.

Identified on: 4/8/2026