Hi: I live in southern Ontario and my brugs also have holes in the leaves. I think it is either earwigs or slugs. I found some earwigs in the Canna lilies. What I have done is spray it with soap and water - can't really tell if it has done any good yet. One smaller brug - the leaves also look like lace. If anyone has a better suggestion of what it is and how it can be fixed please let us know.

Look closely on the underside of the leaves. It might
be tiny, green worms. They really like the varigated brugs.

I am no expert...A expert told me to use Sevin....I had major holes too and now no more holes on maya... I hope this helps...Barb

Here she is with new growth..I ran out and took her pic...She was ratted and tatted...Now she is a beauty..:) I would reccomend this brug for us northerners..She likes the cool weather up here and grows great...She came from our Edna...:)))

I only shook sevin on her one time... Her name is maya..
{{gwi:513764}}

I've looked really closely and haven't even found anything as small as an aphid, so I'm wondering if it is something getting to them at night. I sprayed a couple of days ago with stuff that's supposed to deal with aphids etc., like Betty said, its still too early to tell if I've done any good.