Meg, over in Turkey and Greece, they do buy figs filled with live wasp. They use a large fish hook, some string and loop 5 or 6 figs on it and walk around the orchards and throw the strings up in their trees. Why? because some years the wasp isn't there as they were in the past. I know. I lived in Turkey for 2 years. Moreover, when I visitited UC Davis a few years back, they recommended I do the same thing because it is too cold here for the wasp to live.
There is a post on this forum that talks about this very thing and explains it all. I'll look around and see if I can find it and post it here. You guys are in for a learning process. Put you school caps on!! HA!