Scientists alarmed by bark beetle boom

Bark beetles are currently responsible for killing an unprecedented number of trees in forests across Europe and North America. Why the beetle populations first explode to decline naturally after a few years is largely unknown. Researchers are therefore urging to step up research into the dynamics of bark beetle populations. They believe that more needs to be done also in view of climate change.

from Latest Science News -- ScienceDaily https://ift.tt/2xqPusU