Xs and Os at Bronte Athletic Park Traditional Cache

This cache is named for what Milli (the BugFinding Pooch) and I saw along the fence lines here, while visiting Bronte Athletic Park.  All of the trees, along the fence line, were marked with Xs, the kiss of death, and others with dots (I'll call them Os) the kiss of life.  You'll see what I mean.  After a year, my guess is that there will only be a few trees left, spread along the fence line.  This tree has a good mark, and looks like it's going to live, although there is a dead stump on the side of it, where the cache container is hidden.