What are the telltale signs that a tree is infected by emerald-ash-borer?

From SaveYourAsh.org – “Evidence that may indicate the presence of emerald ash borers include dying branches at the top of a tree, vertical bark splitting, new branches sprouting from the base of the tree, D-shaped exit holes and increased woodpecker damage.”

Thanks. Great info @jaytkay

@jaytkay In case you’re interested, and you haven’t heard, (some of the most informed people, home improvement renovation experts for eg. haven’t heard about it yet): https://www.gov.uk/prevent-the-spread-of-harmful-invasive-and-non-native-plants This is a weed not an insect, but anyway.

@jaytkay
If leaves are sprouting from the bark not far from the base of the tree, what do you think it means?

@flo Sorry to say I don’t know. The pros handle that around here. They show up one day and say, “we’re taking this tree down”.