Large black ant (harmless) or carpenter ant?

Asked September 21, 2020, 3:57 PM EDT

These are invading my home in last couple of days. Are they just regular large ants or do I need to be worried about my home being destroyed by carpenter ants? Thanks so much.

New Castle County Delaware

1 Response

It is difficult to tell from the picture, but most likely this is a carpenter ant. Carpenter ants do not eat wood. Carpenter ants chew galleries and make their home in soft wood or wood that is in a state of decay. They take advantage of wood that is being decomposed by fungus or is softened by water damage. I would search for water damaged wood around the home. The ants may only being foraging and not currently established. I am providing a link discussing carpenter ants for you from Pennsylvania cooperative extension