Sheetrock Damage: Carpenter Ants or Mice? Investigate Before Treating

Painting revealed soft spot: sheetrock missing behind paint, trails and cubby holes in sheetrock, powdery residue, no critters, no mold/moisture. Asks if pesticide needed before repair, and if should find where they went.

Likely Culprit: Carpenter Ants

Only insect that excavates sheetrock during nest expansion. Carpenter ant guide.

Investigation Steps

1. Check inside wall (exterior wall = insulation?)
2. Look for ant evidence
3. Check for mouse tooth marks
4. Post photo if possible

Don't Spray Yet

Confirm pest first. Unnecessary pesticides = risk.