Once again: I am not discussing bee diets. I brought up canola because (a) it's the crop discussed in the study we're commenting on, and (b) it's the worst-case scenario for bee exposure to neonicotinoids (virtually all canola crops are treated).

In fact: the idea that bee colonies would be stressed by a diet solely of oil rape nectar (note: no commercial bee colonies have such a diet, because they're moved around to take advantage of growing seasons elsewhere) favors my argument: it's another way in which bees working canola crops should do far worse, given neonic exposure, than they actually do.