Trees, Shrubs and Conifers: What is happenng here?, 1 by bacarney

bacarney wrote:
Are the holes that are showing up near four of our parkway trees the result of burrowing critters? Or have I been doing something wrong? Several parkway trees (40 plus years old now) with exposed roots appear to be hollowed out and are leaving dangeous holes for kids and adults (!) to fall into--what do you recommend? I have called the city arborists and they will send someone out but--how I prefer to hear from Trees and Shrubs experts. There must be something that I can do about this--right?