It kind of occurs to me that they would most likely say that there is no evidence if there was none. Since they didn't say there was no evidence, I suppose there is some. I would also point out that there is an active
lawsuit (first google hit) going against the EPA and possibly this is the reason for the article. I also read that there was at least one paper on the cause of colony collapse disorder. Don't know if they/it can be found
on Google Scholar here. Bayer crop science is the villan for promoting the use of this. Anyway you look at it, the disappearance of bees may be good for selling one particular seed, but in general very, very bad for the rest of nature and most other agricultural industries too. Think of how Biologist Jonas Salk said: "If all insects on Earth disappeared, within 50 years all life on Earth would end. If all human beings disappeared from the Earth, within 50 years all forms of life would flourish.”. This does not mean that all humans have to disappear in order for life to survive however. I would prefer a balance.