I'm a little confused. Do you have blossoms right now or fruit that is nearly ripe?

Hello softmentor, my peach tree is totally covered in flowers as I type this (its early spring here in South Africa).
Do you have any suggestions?

protea:

You could try bagging your fruit. I believe nylon footies have proven best on peaches. It depends on what type fly you are talking about. There has been some success against oriental fruit moth. The footies are used here by some shoe stores for customer use while trying on shoes.

The Fruitnut

I found the footies ineffective against Caribbean fruit fly. ziploc baggies (with ventilation holes cut) are the only protection.

Gary