i installed two packages one week ago and they are not doing well. i know that i released the queens successfully. i came back the next day and put some sugar on the bottom board and sprayed it with a little water. i came back over the next few days to check on them without opening the hives and they appeared to be very active coming and going. i finally opened the hive today, about a week after installing them and they are all clumped together, moving very slowly and shaking, some not moving at all. they are attached to the top bars but mostly lay on the bottom board. there are dead bees throughout the hive. they did take some of the sugar. there are some bees coming and going and looking healthy but not many.
did i kill them with sugar? any comments or suggestions?