The answer to both is no.
Carpenter ants in attic insulation.
Technically we are not supposed to spray it indoors.
They will cross the residual and eventually get it back to the nest where it will slowly transfer to the colony.
Excavate their nests in wood that is sound or decayed by moisture or damaged by other insects.
This can include insects honey meat and pet food.
I hit them with some raid ant killer and got a lot of them but a lot fled the scene.
However it is important to realize that carpenter ants in the toronto area are also known to rip through and infest foam insulation.
This is likely due to the insulation comfortable properties for a home and also possible due to a previous inability to rip through nearby wooden structures.
The ants that are nesting in the attic have to leave periodically probably at night.
Your attic hosts some electricals including cabling for various appliances.
Their diet depends on various sources of protein and sugar.
When carpenter ants settle indoors they become destructive because of their nesting habits.
Nests found in wall voids bath traps and insulation.
Do carpenter ants eat insulation or wood.
Feed on sugars carbohydrates and greases.
May have both a primary nest and secondary satellite nests located near each other.
Do ants live in insulation.
When carpenter ants invade these wires they eat through the insulation posing a potential fire hazard from short circuiting.
There was a pretty good amount and some were huge.