OK, I know this unusual for a lawn site, but I can not find info anywhere. I have been to every garden place, and farm supply place around, been online for hours and still no luck. I have a cherry blossom tree, it is not a fruit bearing tree, and it is dying. I have no idea why. No noticeable fungus, or pests. I have taken samples to many places, ( bark, limb cutting, leaves) and no one can help me figure it out. The only "new" thing is that the bark or trunk and limbs seem to have more raised areas then before. I thought some type of insect infestation, but I sprayed for everything and still this tree is dying. ANyone have any idea where I can find some help on this? Thanks!