I'm attaching pics of a few of the plants in my garden that are being eaten by.... slugs? The pics are salal, rhodo, & foamflower... yet my azaleas and a few of my Japanese Pieris are also being eaten, can anyone id the pest and recommend how to get rid of them. I must mention though that the garden I am having problems with borders on a forest and it would appear that even some of the maples etc. in the forest have the same sort of damage, so would treating my garden for whatever pest(s) that is eating my plants really have any effect if the pests if they are coming from the forest? Any help or suggestions is appreciated.