Each DUNK kills mosquito larvae for 30 days or more! "Kills Mosquitoes Before They're Old Enough To Bite" For organic production Each dunk covers a 100 square feet regardless of depth for 30 days or more For use in fish ponds and animal drinking toughs dunks may be broken in half and quarters for smaller areas Easy to use, simply place a dunk in any standing water once a month Unused and dry dunks retain their potency indefinitely
Mosquito Dunks 6-Count Natural Mosquito Killer (6-Pack)