They are about 45 feet from our home on a canal. Will they cause damage to our irrigation pipes or go to the canal for water. Wherever ficus roots go, they eventually cause trouble. The South Florida Water Management District might be interested in having them removed as a potential drainage hazard to their canals. The trees get huge and routinely blow over .
Aggressive roots can plug plumbing, crack paving and pools, and even destroy building slabs.
I have seen roots in third floor toilets. I would opt for removal if you can pull it off. A. Oak and other trees with roots under paving may be reaching an underground water source but are not getting nutrients so eventually will decline. Q. My laurel oak has not had many leave s on it for the past two years and the leaves that are there are spotted . Your laurel oak has some fungal leaf spotting.