Posted: 26/07/2013 at 23:34
OK, they do in the main, but insects play a part too. I've often seen insects on my chilli plants.
I always understood tomatoes were self-pollinating; so why do growers import thousands of bumble bees each year to help with pollination? Bees, incidentally which are bringing in parasites which are harming our native bees.
I would also suggest DMG shakes the plants gently and makes sure the ventilation is good.