I use row covers( 5'x50') - got them from amazon . Its a fabric that covers planting rows, bushes etc. to keep out insects ,also frost protection , allows light and rain in. You can cut it to size. It will trap in heat and moisture , so just be aware of that.
They are reusable .
I have potted figs so I used tall plant stakes 3-4 in a pot , draped the row cover over stakes and enclosed tree , secured openings with tiny clamps I found in Home depot - like clothes pins ! U pins can pin fabric into pots if needed. Seems to be working , not only for bees , but for birds too!
Funny thing is , they look like ghost trees!
Your figs look great !