Could be frost and/or dryness. They're usually hard as nails....take a tiny slither of bark off with your thumb nail and see if it's green underneath....chances are, it might come back

We've had really whiteover frost, strong drying winds, bright sun and little rain so i agree with Badfish
hopefully it will send out more new leaves.....

I agree too, late hard frosts.

Thanks so could be SOME hope then.......should l cut down the stems or just wait and see?