Fall colors

Does anyone remember in the past that crepe myrtles turned this lovely color of orange in the fall? Maybe I'm brain dead, but I don't ever remember it before. They are so lovely.

I just love the contrast of this lime green next to the begonias and the orange crepe myrtle.

I picked these from my garden. Unfortunately, ever since then we've had a lot of gnats in the house. How do I get rid of them?