We have a huge fig tree that produces hundreds (several thousand?) of figs that never become edible. They grow to what looks like a mature size but have dry, paper-like interiors. I am told we need a wasp to caprify them. I live in Fresno, California, the heart of fig country in the US, but have had no luck locating the needed wasps. Can anyone advise me where to get these wasps and what to do with them if I get them?

Its more then likely a male capri fig. Does the figs look dry with powdered pollen ? Is it your only edible fig tree you have.

I live in Fresno. That is what Richie said,a male fig tree. Inedible. PM me

If you cut open those figs you will easily see the needed wasps. So now you need some edible varieties to be caprified by the wasps.

Wish i had the wasp. I have 3 large trees i have to dig up because no wasp.

Francisco,
You asked what the inside of my figs look like. They look to me exactly like the picture of the fig cut in half that you posted. I've posted a picture below. So does this mean that the tree is in fact a male fig and the fruit is inedible? ☹️If so, too bad!! Can one graft an edible fig onto an inedible fig? You see I am not quite ready to give up yet!

  Clare, you most certainly can graft onto a caprifig.   Use its foundation of established roots to jump-start a hesitant grower, and you'll have the benefit of a wasp source close at hand.