Do squirrels eat slug's

It is more a "Sucking" then eating.

Fence and post your plants to hold the pods off the ground :

then collect coffee grounds : surround your plants and garden areas with the coffee grounds : the nitrogen in the coffee is good for the soil and the caffeine in the coffee is deadly to many creatures, like slugs.

Watermelon rinds are a warfare method , like the coffee , you get the goodies before you use the end result to arm your garden. However, the watermelon rinds do not kill the critters and might attract more unwanted ones.

but the method is to put them out at night and pick them up in the morning,.

the other ideal is "English Clay"; Cinders, sawdust, Sand.Seaweed is not only a good soil amendment for the garden, it's a natural repellent for slugs. Mulch with seaweed around the base of plants or perimeter of bed