The solution? Ant-eaters. An army of ant-eaters. An army of All-American ant-eaters amassing among a mass of alien amish ants.
But in all seriousness, the only solution I can devise is importing some natural predator, or go full WMD by designing some horrible parasite eating the ants alive, and both these solutions have obvious flaws.
Captcha: RESPECT ME
Escapist, are you certain this thing isn't sentient?
I really, really hate ants. The thought of these motherfuckers not keeping to their nests in the yard is terrifying.
See, the Russians would never have this problem.
On the bright side, the Atlantic ocean and a terrible climate is protecting me from these buggers. Suck it, America!