Bad bugs and cabbage

My first attempt at the three quarter inch plugs planting cabbage was a complete failure as it turns out small cabbage family plants are very delicious to most bugs that are very prevalent in the springtime especially slugs and ear wigs the solution to this problem is to grow cabbage family plants in the greenhouse until they are much larger  4 to 6 inches with lots of mature leaves and then protect them in some way,  copper bands, beer traps or whatever you have to do especially if we're planting through deep compost that harbors bugs. I also have a lot of pill bugs that don't typically eat plants because they eat rotten material but do because they're so young.  Interplanting among up pretty sick cover of herbs will also discourage bugs