If you have got the approach right you have two options:
1. Fly under the wires and land slightly fast If you were aiming well into the field and they were say 2/3 down this should be no problem, especially if you use a bit of sideslip once you have seen the wires.
2. raising the nose slightly might get you over them, if you are at best glide speed then you do have a bit of margin before the stall and if you were just going to clip the top of the wires you could get over them, then get the nose back down and be ready to round out in a hurry.
Personally I would prefer 1., only resorting to 2. if I had cocked up the approach and the wires were over the near hedge with trees or something obstructing the gap between wires and ground.