I just moved into a place with an almost-dead crepe myrtle in the yard, and I'm wondering if it can be saved. I'd appreciate any advice or suggestions. About half the leaves have died and fallen off, and the remaining ones are in big trouble. Small flat white spots, and curling edges. Take a look at the photos for details. This is in central New Mexico (very hot/dry), but it had been getting almost daily water from a drip system. Thank you in advance for your help!