Quote Originally Posted by Rusty Trichome
Plus, not at all a good idea to suffocate the roots in an atttempt to control a (virtually) harmless critter. The layer of sand will hold moisture too good, (keeps soil too moist for too long) and restricts the airflow the roots require.
I use fabric pots...didn't even think about that as it is not an issue for me. I suppose it would be a problem for regular pot users...