Jun 23, 2014 - 08:15 AM
It contains a form of boric acid that kills the ants when they ingest or eat it. It has no topical properties and will not kill the ants if sprayed onto them. It can kill living trees, as boric acid type ingredients are basically similar to table salt.
If you want to spray the trees, then consider using Dominion 2L. At least it has a chance to kill the ants. Advance Carpenter Ant Bait Granules would also be a good choice.