Slugs love hostas. Go out at night (10ish, earlier if it's been raining) with a flashlight and a spray bottle with a 10% ammonia solution. Spray the slugs directly. You can also pour some around the roots of the hosta to get any in the soil. I don't believe the soil will need to be rinsed afterwards, (I normally just spray the critters directly) but to be on the safe side you could water it well with plain water a few minutes later. Ammonia works instantaneously on slugs.

Janet's Garden

Possibly root weevils.

Slug damage is different; rather than notches at the edge of the leaves, the holes are larger and more extensive.

That looks more like weevil to me too. Again, go out at night with a flashlight and take a look so you know which pest to target.

Thanks for the replies. I felt pretty confident that it was not slugs. I get them every year and am well aqauinted with what their damage looks like. I will definetly go out tonight with a flash light.

Hi Lisa ch,
This may be a little late answering your question, but I agree with the above members. It could also be earwigs. We have been having a bad year for earwigs in Toronto, Canada.
There is not much to stop them. For the slugs I use copper wire from Home Depot. You can also get copper meshing from some garden centres but this expensive. I buy about 3 feet of 5 strand copper ground wire and unravel it. I then make a circle around each hosta with the wire touching the ground all around.It takes time but I have almost hole free hostas. The slugs won't cross the wire because of a chemical in the wire that irritates the underbelly.When I spring clean I shake up the ring for the next.

blacky1