ok, well I know that garlic snails are popular in some parts of the world...

but, I need to know, has anyone tried controlling snails with coffee?

I was watching a show that said a mix of water and used ground coffee beans which is poured over the medium will kill these pests... apparently the caffeine gets into their system and poisons them. Espresso is no good as it isn't strong enough.

Anyways, if I do use this potion on my orchids, will it also affect the plant? ie maybe make the media too acid or alkaline or something...

cheers
tim