MHays,
I was talking to two beekeepers on Monday on the very same subject. They also talked about these bees who are transported around the country.
These beekeeper friends were not very impressed by the collapse issue. They felt the abnormally high death rates were in those hives travelling from location to location. A normal stationary beekeeper can loose 30% of his hives annually. The commercial beekeeper may loose as much as 90%.
The bees who are on the travelling team (my phrase) are stressed. They may stay at a location for a few weeks. At the initial phase of their visit, they send out bees to investigate their surroundings. Once they understand their living conditions, then the rest of the hive goes to work.
This bee keeper described how some vegetables flower only in the morning. Nearby there may be other crops who flower in the afternoon. When it is determined their job is done, then the hives are sealed at night. They are put on trucks with additional seals to keep them in a restricted area, then trucked to the new location. These stressed bees are more prone to disease.
They were far more concerned about Africanized bees. When you are stung by an Africanized bee, the stinger emits an odor that attracts every Africanized bee in the area to target you.
Regards,