This worm/caterpillar has about wiped out a Lysimachia autropurpurea plant within 2 or 3 days it seems. Of course there are *many* of them. I know that on my Anaphalis I sprayed Sevin before I knew the caterpillars eating the plant were buckeye butterflies. I'd hate to do that with these, but I also hate to lose all my Lysimachia plants as it's killing them.
Sorry, couldn't get a real clear photo: Worm is longer than an inch and has a bluish cast:
