Okay so recently my husband and I moved in with our father in law. They both work 12 hour days most days of the week. I currently do not work due to being newly moved, not driving, and living in the middle of nowhere. 
All day long I do chores to keep the house clean and nice. Except on their days off.
The issue is that on their days off they cook these crazy big meals or bake a ton of treats all day and just leave the house a mess. 
As I say I'm fine with dishes but there us a bigger issue at hand here. We have sugar ants. We have put out ant traps but like clockwork the morning after their days off I wake up to dozens of ants scuttling across counter tops and over cutting boards and into bowls. 
I've already raised the issue of the need to clean up after their huge messes in regards to the ants twice. Today I wake up and it's the antpocolypse again.
Now I get that I don't work. I get that I should therefore take care of the house. But I barely make any dishes or mess at all when I cook and these two are a solid hour of cleaning with their meals. And I'd cope with that if it weren't for the ants. 
So today I told my husband that I'm not pest control and they need to deal with it or I won't clean anything that isn't my mess anymore. I hate bugs in the kitchen and letting it get that way is unacceptable.
I'm worried that he's gonna come back saying it isn't fair because I don't work and they have long shifts but honestly I'm not gonna live with an ant issue that no one else wants to prevent. 

AITA?