Why is the bark falling off around the base of most of my white ash? There appears to be a line around base and then about a foot or two above that the bark is loose.

Hi Andy:

Most forest and tree health issues require photos and/or an on-site assessment. Therefore, please contact your state forestry agency in Pennsylvania for assistance regarding your specific question:

PA DCNR Forestry: http://www.dcnr.state.pa.us/forestry/

I had to take a 91 yr old white ash tree down last year due to emerald borer. I did not have the massive trunk removed, and it has since sprouted new stems, that, this spring look very healthy. Is there a chance that they will survive, and what should I do to attend to it? From what I have read, there's a good chance it will be resistant to the borer, is this true? Or, what can I do to help it? It pained me to have it cut down, it was so magnificent. Thank you on advance

Since the tree was already proven to be susceptible to emerald ash borer, the sprouts, which are genetically identical to the original tree, will not have additional genetic resistance to this invasive insect. Emerald ash borer targets ash stems that are typically larger than @' or so in diameter, so the sprouts are likely small enough now that they are not attracting the insects. They may last a while if the population of emerald ash borer has crashed in your area following the loss of all ash material, but, if there are still a lot of ash trees around, you likely still have plenty of emerald ash borer to infest the sprouts as they grow large enough. You can treat ash trees successfully. We have a website that goes over homeowner options - https://web.extension.illinois.edu/eab/