Good question. I should have specified that I was saying that in the context of conventional crops. From what I've read, they don't pollinate many conventional crops but they are drawn to fruit trees. Otherwise mostly native plants which humans don't cultivate for food.
In some places I know similar species are actually grown for commercial pollination, so it'll vary from place to place for sure.
In some places I know similar species are actually grown for commercial pollination, so it'll vary from place to place for sure.