On the Italian Forum in which I participate a Canadian user asked for help to chemically solve the problem of a rather important invasion of Crematogaster scutellaris ants. He has already tried in various other ways including the elimination of two plants that acted as "bridges" when they entered the house. Providing her with the names of the products on sale in Italy or their active ingredients I don't know how much would help her. So I thought I'd ask on this Forum if anyone has, unfortunately, had this problem and how he solved it. I do not know the section in which to insert this request and I insert it here with a prayer of possible displacement. Thank you! I doubted that the problem may concern a home in Italy (vacation time) and I await an answer.