I know where I live most native pollinators are very selective and, as a result, in very small numbers since their habitat doesn’t resemble what it did even 100 years ago. They’re a drop in the bucket compared to what we require... And even if we made enormous efforts to boost their populations, I think they’d largely only pollinate fruit trees.
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.
