I have 15 very large ficus trees whose roots have destroyed the swimming pool, the hot tub, as well as much of the patio. They are threatening the house. I have read that severe pruning can damage the roots. Which sounds to me like a good thing in my situation. However, I have also been told the opposite by an arborist who came to give me an estimate. He told me that if I top the trees, they will move storage to their roots and trunks which will then grow much faster. He said that the only alternative is to remove the trees altogether. Is this true? It seems to directly contradict what I have read here: http://warnell.forestry.uga.edu/warn...php3?docID=146

Can pruning be used to cause excessive roots to die off?