I've planted some small dahlias
that I purchased from a nursery.

They seem to be an enjoyable
dinner for someone in the evenings.

Do ya think it may be slugs?? It's
making me mad!

Could be Tree.
It also could be cucumber beetles, earwigs, aphids and spider mites (a few of the most common insect pests to dahlias).

Check out these,

Chewing Pests  

Thanks for the link, JT.

I'm thinking it really IS
slugs now. Gonna try the
dried orange shell method.