@unknown, my solution has been to remove all composters (the villagers will not even attempt to reproduce once they run out of food), then killing all the villagers I don't want. If the admin doesn't have a way to kill specific villagers, you guys can save the villagers you want to keep by trapping them into boats, then mass-killing the rest by ringing the bell (or wait until night time) and lava bucket'ing whichever houses the villagers decide to go into.
@unknown, my solution has been to remove all composters (the villagers will not even attempt to reproduce once they run out of food), then killing all the villagers I don't want. If the admin doesn't have a way to kill specific villagers, you guys can save the villagers you want to keep by trapping them into boats, then mass-killing the rest by ringing the bell (or wait until night time) and lava bucket'ing whichever houses the villagers decide to go into.