Unfortunately, Phytophthora cinnamomi (a fungal infection) is showing up on Ilex glabra. So far, I have only seen problems with the cultivar "Shamrock," a female that is supposedly a seedling selection. Previously, Ilex crenata (the Japanese holly) was shown to be susceptible. 'Shamrock' is being sold as a purebred seedling selection of Ilex glabra. I certainly hope that is truly the case.
Here is a link that might be useful: First Report of Phytophthora cinnamomi on Ilex glabra in Virginia
Q