I am a beekeeper and I have not had a colony collapse since I started treating the varroa mites with oxalic acid solution. Colony collapse is a generic term for hive failure and not a specific disease. Varroa is the main reason why my hives failed. The oxalic acid seems to fix this. I treat them after I harvest the honey in the fall. The varroa infestation dies down and the bees do well. The crisis in beekeeping is largely a misrepresentation of the facts by the press. Bees are doing well and the count of total hives is increasing each year in the US. I am going to order some Saskatraz queens, but mainly because they sound like an interesting hack.