In recent years, foresters have been able to observe it up close: First, prolonged drought weakens the trees, then bark beetles and other pests attack. While healthy trees keep the invaders away with ...
Researchers say the bark beetle is destroying thousands of acres of northern Minnesota forest. Minnesota Public Radio reports the Department of Natural Resources first noticed the eastern larch beetle ...
An ecologist investigates pest infestation in forests with mixed and monoculture tree stands. In recent years, foresters have been able to observe it up close: First, prolonged drought weakens the ...