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 ...

If you spot tiny holes and piles of sawdust on your tree, bark beetles could be the culprit. Unfortunately, the solution ...

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 ...

Throughout the year we receive many pine bark beetle calls. Pine bark beetles attack and kill pine trees that have been stressed. The three most common stresses for pine trees that invite pine bark ...

Despite the damage incurred by recent hurricanes, notably Hurricane Michael in 2018, the pine tree industry in Florida still is a major contributor to the state’s economy. This industry includes the ...

Adult spruce bark beetles in their galleries in the bark of a Norway spruce tree. The beetle in the middle is infected with the fungus Beauveria bassiana. Spruce bark is rich in phenolic compounds ...

A dead pine in the Black Hills of South Dakota, June 2013. The pine has the characteristic popcorn-like pitch tubes indicating beetle infestation. CATHY WURZER: It's Minnesota Now here on MPR News.