My friend Roni and I were discussing an upcoming heavy pruning on her pine trees, which are growing into power lines. She said she was planning on using a systemic insecticide containing imidacloprid ...

Trees, especially pine trees, are in for challenging times. Although pine trees are relatively drought tolerant, ongoing drought, as we’ve experienced in Marin County for several years, has caused ...

The Crystal Lake recreation area in the San Gabriel Mountains and Angeles National Forest will temporarily close Tuesday through Sunday to stop a tree-colonizing beetle from spreading. What's ...

As you might be aware, El Paso County and much of Colorado is seeing an uptick in mountain pine beetle (MPB) activity. MPB is a native insect that usually attacks weaker trees as part of a natural ...

This month's early cold snap may have killed a few mountain pine beetles, but probably not many, according to a scientist with the U.S. Forest Service. Unseasonably cold weather sometimes is more ...

Minnesota agriculture officials are sounding the alarm for yet another invading insect. This time it’s the mountain pine beetle that’s already devastating forests of the Rocky Mountains and has moved ...

If you had plans to visit the Crystal Lake recreation area in the San Gabriel Mountains and Angeles National Forest this week, you should change them. Officials closed the area Tuesday to spray ...

Montana and Wyoming have recorded arctic temperatures during the past week that would seem to make a polar bear shiver, but the cold may have come too late and not stayed long enough to have much of ...