Holes Against Foundation: Likely Cicada Emergence Holes

Over 20 clean, 1–2.25 inch holes against foundation (no loose soil, three sides only) in a new Tennessee home with bare land and overgrown neighbors are likely cicada emergence holes. Periodical cicadas (17-year) or annual dog-day cicadas create "chimneys" before emerging. Loud buzzing this summer confirms high populations.

No Treatment Needed

Cicadas cause minimal damage (some twig dieback). They don't harm structures or lawns. The insects have emerged, mated, laid eggs, and nymphs returned underground. See resources:

• Cicada hole photos
• Tennessee cicada info
• Clemson cicada factsheet

Earwigs are unrelated; they don't make holes.