As far as I can tell there are not enough wild insects left any more to pollinate the planet.
That is what I have read anyway, in different places. There are not enough varied habitats for them to live in, since we have chopped down forests - not just the rain forest, but the Sahara forest, the forests that spread the length and breadth of Europe, up and down the spines of England and Ireland - all over the world.
Maybe a lot of pollination is accidental - from bees that come from industrial hives. But if those bees become extinct (as they well might, due to inbreeding, anti-biotic fumigation, etc leaving their immune systems susceptible to disease) then, frankly, we are all fucked. By the time the ecosystem sorts itself out we could easily be extinct. (Some might argue, no bad thing.)