OK, I have seen this before on bushes but not a crape myrtle, again, spelling? I am 90% sure it is aphid droppings, you know the spots underneath and then the black fungus that feeds off of that and covers the leaf on top. I was not aware this was an issue with crape myrtles though. SO, being they are about to drop their leaves anyways, leave it? Treat is with NPP? I used a Bayer product a few years back when my bushes got it and it worked GREAT! But it wasn't organic and the customer could buy the same stuff off the shelf. Any thoughts? The same crape myrtle has not bloomed for a while also but I have a feeling it is because it is sandwiched between the woods and the house and is not getting enough sun. There is a smaller second one more in the sun and she said it bloomed before the fungus hit.