I got an assortment of young Japanese maples and some of them have died to what I think might be Pseudomonas and Phytophthora. Their trunks slowly turned black and leaves wilted pretty fast. Several times mushrooms were growing in the pots. The pictures of the ones with no leaves sadly did not make it, and the one with leaves is that last one to show signs of deformation, and I am trying to save it if it is possible. Are the curled deformed leaves from a fungus? Someone recommended a product called Phyton 27, but I have some questions and concerns about using it as my garden is in the same area when my dog hangs out and not sure if its safe to use fungicide due to runoff etc. This stuff seems pretty toxic. Does the one with leaves look like it has Pseudomonas and/or Phytophthora? I'd like to avoid using the fungicide if I can. I let them dry out quite a bit before watering again. I could put this maple in a place where my dog does not go to give it a treatment. What would be the best way to use Phyton27 for this maple? Soak/spray? Should I use it on all my maples? and whats the best temperature to do a treatment for these? Any tips or suggestions on how to save this maple is greatly appreciated, thank you.