Rats are everywhere ( whether city or country) ... you first need do “ exculsion “ work to your grow areas and or house ... this means look for and seal off ANY holes / gaps / screens / etc.
They are obviously finding access. This is easy for homeowner to tackle as extermination companies ( like my own ) that would love to charge you for. Hard traps like VICTOR are good for catching and monitoring. Cheap glue boards or “ retail “ poisons are ineffective. Rodents carry multiple diseases on top of ticks , mites and fleas. They have lousy eyesight and shit / piss everywhere they run. During this time of the year they are seeking shelter / nesting. Deconstruct / purge your grow ... eliminate the issue and sanitize all. Good luck.