Another good slug trap is to take a 16oz. plastic soda bottle, cut off the top 1/3, invert that top and push it into the botton 2/3 part like a funnel, staple the two parts together, then add your own favorite cheap beer. Lay them on the ground sideways. The slugs go in for the beer, and can't get out. Kind of like a crawdad, or minnow trap. When they get full, just throw the whole kit and kaboodle into the trash. No mesh.