Okay, here's my opinion as a ham radio operator. RF is the same, no matter the frequency. The frequency and power output basically determines the amount of RF exposure. There have been HF/VHF/UHF and microwave signals being transmitted constantly since the invention of radio a 100 years ago. If bees are affected by radio frequency emissions, then we would have seen bees dropping dead when Marconi first transmitted the letter "S" across the Atlantic. A cell phone is nothing more than a fancy walkie-talkie that lets you play Pac Man.
Here in the Seattle-Tacoma area there are THOUSANDS of radio signals constantly being transmitted from TV towers, AM radio, FM radio, business band, air traffic control, railroad, ham radio, shortwave, CB radio, marine traffic, etc... Cell radio is just one more in the mix.
My bees are just fine and I run a 100 watt high frequency ham radio in my home with the antenna only 60 feet above them in a tree.