From the LSU AgCenter
Take a look outside, and you might see that your crape myrtle’s leaves are turning shades of yellow, orange and red and falling to the ground. Is this a sign that autumn is near?
Not quite. This time of year, it’s more likely you are witnessing something called Cercospora leaf spot.
“This is a very common disease we see late in the summer on crape myrtles,” said ...