Howdy all. I was out in the garden today, lovely but windy for December. As I was helping my daughter with her bike I noticed some rather odd brown gooey blobs around the base of our Prunus 'Ukon' ornamental cherry tree. My daughter initially thought it was cat vomit (yum!) but when I looked closer the brown ooze seemed to be coming from all around the very base of the tree trunk. The tree, we've had for about 6 years, has always been healthy and has only ever been pruned in July. I scraped soil from around the base of the tree and there was more ooze, lumpy and browny-honey coloured. I'm thinking it may be canker, which would be a bummer as we love the tree. Any ideas? If it is canker, should I dig it out and what could I replace it with?