We seee quite a bit of bee activity around milkweed here and have not yet
noted the risky pollination problem will observe more closely Late last
summer we noted that the  bees really seemed to love it.And did not seem to
have any problem. Where did you see it most? at the flower?and the hives?on
the entry board? on the the comb.?
I find it listed as a source of nectar in Nectar and Pollen Plant sof Central
Massachusetts, published by the Worcester County Beekeepers Assosiation