i have an american elm with a large broken limb hung up in another tree. weve recently been seeing D.E.D. here but i dont know much about it. we need to remove the limb which is 8-10" diameter. so far the plan is 10% bleach water on out tools before but do i need to treat the wound at all? this limb has a length wise fracture very near point of attachment so reduction of the limb till a later date doesnt make sence.