On the whole I leave it to get on with its work. But I have a soft spot for the route up from Lenny Hill along Bilberry Terrace. So you will find much pulled up bracken in the middle of the path from the banks to either side.
The idea is to expose the bilberry and cowberry as an attractive feature.
This s the sort of hands on management I favour - infinitely preferable to the kind remotely controlled from offices and desktops, an ideal occasional occupation of a good site worker in fact.
Meanwhile, never far away, other invaders are intent on making their own impression on the paths.