Add Yahoo as a preferred source to see more of our stories on Google. Discovering what looks like black ash on trees in your yard can seem alarming. Did you somehow miss a nearby fire? Not likely.

A reader of ERR's Novaator science portal noticed diseased ash and elm trees in their home yard and asked what was causing it and what could be done to help the trees. According to Rein Drenkhan, ...

Did you hear what happened to the wooden car with wooden wheels and a wooden engine? It wooden go. Wood, at least from ash trees, is in excess supply since emerald ash borers have killed hundreds of ...

Discovering what looks like black ash on trees in your yard can seem alarming. Did you somehow miss a nearby fire? Not likely. Instead, you're probably seeing the result of one of the more annoying ...