Read this article about the plants chatter, pretty cool:

http://www.radiolab.org/story/plants-talk-plants-listen/?utm_source=local&utm_media=treatment&utm_campaign=daMost&utm_content=damostviewed

Can they pretend they are not figs so the gnats do not attack (or less)?
How about the friends of figs?
I have noticed the seedlings care less about those flying guys for sure.