Good morning! I just stumbled into the kitchen and was greeted by ants on my counter top. It’s spring for sure!
Morning
Just sprinkle a bit of diatomaceous earth on the ant track.
The low down on what happens, the ants track through it, pick it up go back to the nest.
They groom or get groomed by the guards and it spreads.
Under a microscope the DE is pure silicon and acts like bits of glass that cuts the soft parts of their exoskeleton.
So basically they bleed out and die.
Within a few days-no more ants
One can dust along the foundation of the house and that works as a barrier against them coming into the house.
Note: Don't use DE that is for a filter system (pool filters)
Use only food grade as it's perfectly edible for animals and humans.
Just don't fling it around as it will become air born, not healthy to breath in.
Example of fineness 1 lb. will do 2 acres