Could some one help? Two weeks ago I went to look at my bees; I keep on a friend’s property. I keep 7 hives on site and last weekend they were doing great making honey and had a lot of pollen stored I had five medium suppers on and they are all packed with bees. This weekend I went to see how much more honey they made and found two of the seven hives totally empty all the bees were in a big pile out side the hives. I looked in side and there was pollen and a lot of non caped honey but no bees. I asked the owner if he has sprayed any thing over the last two weeks and he said he does not spray. I did not see any Mites or hive beetles no wax moths, I did see some fire ants any ideas as to what happen. The other 5 hives are full of bees and honey 6 medium high packed with bees.
Anyone have any suggestions as to what might of happen please let me know?