Question From: J. Avgoustis - MICHIGAN
Q: I have a Princeton Gold Maple tree that starts off every spring and early summer with beautifully bright lime-yellow leaves but by the time mid to late summer hits, the leaves have what I would describe as black "tar" like spots on them and look slightly scorched. In addition, they color fades to almost a pale light green. Any idea what it would be and possible treatments to avoid getting this going forward?
A: The tree has a fungus called tar spot. The scorching may be caused from lack of water that may also cause color fade. Here's a good website to check for the fungal disease tar spot. http://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-diseases/tar-spot-maple-rhytisma-spp. Best And Happy Yardening, Nancy