Posted: 08/06/2015 at 08:51
Mike, I would get someone in to check if it's honey fungus. at least then you will know what options you have.
I had phytophthora in a part of my garden a few years back...2 conifers, photinia and ceanothus were affected. I removed them and now have herbaceous perennials, pittosporum, buddleia and camelia there and thriving.