Carp are a pain and a big problem for many waters. Nothing will be simple, nor easy, nor cheap!. Try having carp fishing tournments. Entry fee and prizes for most carp caught. If you want the best way - drain lake down to low pool and renovate. Second best annual electroshocking. Thirdly netting and trapping. Fourth best: increase number of bass. Bass are not as effective in the murky water caused by carp activity.
