Hi ambermsam,
Ashes and beer.
Sprinkle the ashes around - keep the ashes dry and it will stick and dessicate the wet beasts. Lime in powder and crushed dry shells of eggs do work too .
Take a small plastic bottle, bury it halfway. Make two big openings on opposite sides, fill the bottle with beer up to the openings and place the cap back on the bottle.
The wet beats will be drown in the beer.
And the last trick is to collect them manually and dispose of them. They like to rest under wood pieces during the day. So place some wood pieces here and there and do the cleaning during the day.
If you have walkways made of concrete, use big grained table salt on the walkways. That does work great too. By rainy weather adapt and re-apply.
You can go with the chemical baits too ...
In the long run, grass does attract them ... I put barriers for them to stay (more) outside of the zone of interest for me ... They stay (more) with my neighbors since that framing... After all, they belong to the neighbors as they did breeding them ...