It doesn't seem to be good news for bees. When they are not struggling to cope with the world of modern confectionary, it's pesticides. Then of course there is Colony collapse disorder, which is a scientific term for we're not sure exactly what is going on.
Einstein never said if bees dissapeared then humanity would only survive four years, but if all bees disappeared worldwide, food would be in short supply, as fruit, nut and vegetable crops would not be pollinated. Invariably, whole ecosystems would be affected.
It doesn't take a genius to work that out.