Originally posted by UncleAcidic:

in one place i planted trees in an offset pattern around my base and cut them down but left the stumps and logs. trolls can't walk on them and even hurt themselves trying to get to me.

OH, thanks for that! I had not noticed they had issues even with stumps. That will be useful information! My tree barrier is already in a staggered pattern, so I'll have the same set up should I opt to just leave stumps at any point!