Hey everyone, I just wanted to know what kind of Maple this is in the first picture. I also have a problem with a Oak tree. I believe it is a Red Oak - Quercus rubra. There seems to be some branches dying near the bottom facing the back of the house. The front of the 2-storey house is facing west. It seems to look like a rust or a tar spot. I have the book Diseases of Trees & Shrubs 2nd Edition. Some of the pictures on page 101 (Oak Anthracnose) seem to be like the leaves, but not really. I'm not sure if the oak i have is different or not. One main problem is by the roots. The ball seems to be planted a bit to high. This tree is probably 30 years old, i am assuming. Some of the small roots are exposed. Which in that case should be covered with mulch to protect them. I am just curious as to what kind of disease this Oak has and how it can be treated. There is also a white powdery mildue on the oak leaves in the second pictures. yet another problem with this one. Mirek