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Removing the fruiting bodies will not slow the damage/decay to the host tree. They do not affect the rate of the mycelium growth within the tree, and, if anything, removing the fruiting bodies will divert energy to new mycelium growth. They are only present for one purpose: spreading the fungus around. Usually, in a case that bad, you will remove the tree. ...


12

Those look like Birch Polypore, scientific name Piptoporus betulinus. This mushroom is global but found almost exclusively on birch trees. The polypore is called "saprobic," which means it feeds on parts of the tree which are already dead or decaying, so most likely that crack was there first. Now that the tree is infested, though, unfortunately it's likely ...


0

I would suspect a potassium imbalance (either too much or too little). Maybe even a phosphorus imbalance. There may have been some leaf miners, but there were other problems, too (although it doesn't look like powdery mildew to me, except maybe on the left-most leaf on the bottom picture). Potassium-deficient plants are weaker against insects and are more ...



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