The beetles killing spruce trees in epidemic proportions across Colorado attacked forests at a faster pace in 2014. Meanwhile, the mountain pine beetle epidemic slowed dramatically, likely because the ...

The history of the Christmas tree dates back to pagan winter customs. Later in history, German Christians put apples on fir ...

Once beetles enter a tree, both the larvae and the adults overwinter beneath the bark, Gale confirmed. According to Gale and ...

The Colorado State Forest Service released its annual report on the health of the state’s forests last week, and it showed the growing shadow of a lingering threat. The spruce beetle has now replaced ...

With so many varieties sold as Christmas trees, knowing what differentiates a Douglas fir from a Norway spruce is key to ...

DENVER (AP) — One type of tree-killing beetle is attacking Colorado forests at a faster pace, but another is slowing down, partly because because it’s running out of live trees to infest. State and ...

Colorado’s forests have been waging a losing battle against tree-killing beetles for more than 15 years. Now, after marching across the state and killing millions of acres of pine forest, the ...

Aspen discoloration caused by Marssonina leaf blight on the Grand Mesa National Forest, Colorado. A good place to check on the health of Colorado’s forests is from the air. That's why the U.S. Forest ...

I'll tell you a little secret if you promise not to laugh. Before I studied horticulture I didn't know the difference among evergreens, spruce, pines or conifers. Before you skip today's column ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. So far, fewer acres of trees have been affected by spruce beetles than mountain pine ...

Getting your Trinity Audio player ready... The devastation caused by spruce beetles across Colorado forests accelerated for a fourth consecutive year, according to a new survey, while the once ...

The Colorado State Forest Service released its annual report on the health of the state’s forests last week, and it showed the growing shadow of a lingering threat. The spruce beetle has now replaced ...