u/Alfred_Brendel

The trees on one side of my yard drop all this black stuff that gets on *everything* on that side of the house. The stuff is pretty hard to wash off - definitely takes some elbow grease. The trees all look fine though - no signs of black stuff on the trees themselves or their leaves. I’m in TN if that helps. What is this stuff, and more importantly, how can I stop it?

The trees on one side of my yard drop all this black stuff that gets on *everything* on that side of the house. The stuff is pretty hard to wash off - definitely takes some elbow grease, and it’s dry to the touch, not gooey. The trees all look fine though - no signs of black stuff on the trees themselves or their leaves. I’m in TN if that helps. What is this stuff, and more importantly, how can I stop it?