An aerial survey conducted this past summer by the U.S. Forest Service and the Oregon Department of Forestry found more than 1 million acres with dead or dying fir trees in Oregon, the largest ...

A 2007 aerial view of widespread damage in tamaracks from an outbreak of larch beetle near Big Falls in northern Minnesota. The bugs, native to Minnesota have been exploding in population since ...

By Erik Vance A view ... an aerial survey of the state’s most forested regions — shows that a combination of drought and insect damage wiped out a startling 36 million trees between 2021 ...

but two pests targeting fir and Douglas-fir trees have made their mark, according to an annual aerial survey performed by the Colorado State Forest Service and U.S. Forest Service. Results were ...

The damage to fir trees was so significant researchers took to calling the blighted areas “firmageddon” as they flew overhead during aerial surveys ... but many view drought as the underlying ...

The USFS did not conduct aerial surveys in 2020 due to social-distancing rules around Covid-19. Firmageddon, as the researchers define it, appears to be limited to so-called “true fir” trees ...

Black-tusked tussock moth caterpillars are munching fir trees along Colorado’s Front ... The U.S. Forest Service and Colorado Springs launched the aerial attack to hammer the bugs over five ...