I think it's the frequent downpours that causing ants to migrate.
And of all places, they seek refuge in my house!
It's not like my house is dirty,
But there are little holes in the walls that seems to be the best homes for ants.
Now that Shieldtox have been used on them,
Those which are in my house are dead.
Let's hope the 'climate change' for the ants end soon,
So they won't come anymore.