Cold temps is kicking some Ash. Emerald Ash that is

There is usually a silver lining in any challenging situation. The recent dive in temperatures might be proof of that as Forestry officials say the extreme cold could help kill a damaging invasive species.  Officials say the larvae of the herald ash borer will begin to die when temperatures drop to 20 below zero.  The beetle eats tissues under the bark of ash trees, eventually killing them.  There is one side effect of the chilly temperatures. Those that survive could become more tolerant of the cold and create more resilient offspring. 51 of 72 Wisconsin counties have reported ash borer invasion.