Unsure of its life before a couple weeks ago. It’s a tree I just bought from a nursery in Sacramento. I haven’t done anything to itNot sure. Is it possible to take a couple more photos including full tree that are well focused? …and add in the horticulture and conditions leading up to this situation.
Cheers
DSD sends
Yikes , should have spent more time looking at the tree when I got it last month. Wasn't aware of this though until I started watering it/ researching. I'll try to peel back some of the bark and see what's going on.It may be diseased and require you to 'chop' the trunk to save the tree. But there won't be much left if that is the case.
I would start flaking off all the loose bark to see what is going on. When the cambium dies the cells rupture and release fluids. At this point the bark is usually 'gooey'. As this necrotic tissue desiccates, the bark will separate from the wood - one will perceive a hollow beneath that bark and eventually it cracks. When it is the result of simple mechanical damage, the cambium develops a new ectoderm and will tend to regrow over the exposed wood. If there is a pathogen, one will not find the regrowth 'lip' we are all so familiar with. If you don't, I suggest that you remove any abnormal tissue around the perimeter, then apply peroxide spray as @Deep Sea Diver advised and then cover the entire area with saran for the two or three weeks it takes for the cambium to develop a new ectoderm (alternatively, apply your favorite 'cut paste').
Of course, it is possible that you find the situation is not so simple and far more alarming. Removing all infected tissues is often the only way to cure tree maladies, meaning cut it off and throw it away or maybe even discard the entire thing to a good compost pile. Let's hope it is not this bad.
Well...... The situation is pretty dire, there is soft mush wood with black borders that spirals all the way up the tree to the apex. Just a large spiraling cavern of mush wood. It doesn't appear I'll just be able to cut away the infected tissue without losing a significant portion of the the main trunk.It may be diseased and require you to 'chop' the trunk to save the tree. But there won't be much left if that is the case.
I would start flaking off all the loose bark to see what is going on. When the cambium dies the cells rupture and release fluids. At this point the bark is usually 'gooey'. As this necrotic tissue desiccates, the bark will separate from the wood - one will perceive a hollow beneath that bark and eventually it cracks. When it is the result of simple mechanical damage, the cambium develops a new ectoderm and will tend to regrow over the exposed wood. If there is a pathogen, one will not find the regrowth 'lip' we are all so familiar with. If you don't, I suggest that you remove any abnormal tissue around the perimeter, then apply peroxide spray as @Deep Sea Diver advised and then cover the entire area with saran for the two or three weeks it takes for the cambium to develop a new ectoderm (alternatively, apply your favorite 'cut paste').
Of course, it is possible that you find the situation is not so simple and far more alarming. Removing all infected tissues is often the only way to cure tree maladies, meaning cut it off and throw it away or maybe even discard the entire thing to a good compost pile. Let's hope it is not this bad.