Some of my azalea leaves have been reduced to a lacework of veins, beginning early summer. Sprayed with pesticide to no avail. Not earwigs, and can't see any creatures on or under the leaves. About one-eighth of a meter high plant affected. Advice would be appreciated.
Certified GKH Gardening Expert
I am not sure what this could be. Check whether the damage matches the photos in any of these articles: