Jasper National Park Redkill and Aspen Leaf Miner

Jasper National Park, British Columbia, Canada. The grey and slightly greenish trees are aspen. They have been attacked by aspen leaf miner, a fly larvae that eats the chlorophyll from between the upper and lower surfaces of the aspen leaves. The leaf miners don’t kill directly, but after years of having their leaves eaten out, the aspens succumb to other diseases or insect attacks.