i bought my first house last sep. loved the huge evergreens(may be junipers) in the front yard. just found today they are looking pretty bad. wires are grown over by bark too far to remove. trees are stressing and getting cankers above the wire. foliage is yellowing- browning- falling off. one tree is worse than the other 2 larger ones and i have cut off all cankers and done my best to get to the wire to losen it. can i save them? help! thanks