I have mature crape myrtles that have done very well for years. But this year they are peeling bark at the base of the trunk. I don't recall this before, and beneath what's peeled is moist. I've hired a company to mow and spray for the first time ever, and am worried they might have sprayed something to cause this.
Certified GKH Gardening Expert
The peeling bark is normal for a mature crepe myrtle. This article will help explain: https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/bark-shedding-crepe-myrtle.htm