I have a double brood with a super left on from the end of season. I have a friend who has just treated their bees with Oxalic and has kindly offered to help treat my hive with me. Question? Is it a given that bees are treated now and has anyone lost a hive due to Oxalic trearment. ( I treated them with apiguard in September) The bees are fairly active at present due to the mild conditions. Now if I do treat, should I go through the boxes until I come across the main core of bees or can I dribble the treatment along the top box in this case would be the super left on from the close of the season. Laymans terms please