[Cynthia, Prescott, AZ]

Bush snails, the tiny ones, are hell on orchids. Years ago, I found that when I repotted my Catts (when I used to use bark), their root systems lot like cholla cactus. The tips had been eaten off after just a short amount of growth over and over, so there were no long roots. My solution years ago was to go to a closed mix that the bush snails couldn't move around in. Never have been back to bark since. I use diatomaceous earth (DE) in my GH for slugs and snails that come in with new plants, and this works for me. Others have said they have no success, and I think it may depend on the source of DE. I keep a wheat flower sifter w/handle actuated stirrer in my GH to spread the stuff on the floor. Must NOT breath the stuff. Heard that stale coffee (caffeine) will kill snails. Good luck on your chore ahead of you.