Help! Beetlemania rages in Yukon forests

It was raining lightly, as it had been for most of this cool, unsettled Yukon spring, as we flew down the Alsek Valley in Kluane National Park toward the Lowell Glacier, a magnificent river of ice that winds out of the St. Elias Mountain Range.

But no amount of moisture was going to green up the forest below. From one end of the valley to the other, virtually every tree was a ghostly grey.