A warm, dry spring across El Paso County has left trees in distress and in some cases wearing the signs of several years of hardship. Evergreens display the battle scars of radical temperature swings, ...

Spruce bark beetles hijack their host tree’s chemical defenses, transforming them into potent weapons against fungal threats.

The seasons are changing from fall to winter, and one of the major changes to the environment is that the deciduous trees have lost their leaves. Evergreen trees may still have green needles, but all ...

Then there is the fungus, Beauveria bassiana. This fungus is neither the tree’s nor the beetle’s friend; as a pathogenic ...

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck ...

If you have cleaned up the vegetable garden and cut back your perennials, you might be feeling just a little smug — especially since this gardening guy admits he is behind you in completing those ...

A couple walks underneath vibrant trees in Palo Alto during the fall. File photo by Veronica Weber. With fall just around the corner, you may begin to see some physical changes to your trees. While ...

Question: I am actually a Master Gardner in Hamilton County and I need help with a tree bark damage question. We have a beautiful dogwood tree that is about 18’ tall and 6” in diameter. By accident my ...

Take a drive down any street in the Magic Valley and you are bound to see a dying or sick tree. Quite a few concerned residents have contacted me and even brought me large branches. The species I see ...

With Arkansas' prolonged drought taking a toll on trees across the state, now is the time for homeowners to lend some extra attention to their trees that may be in distress. "People have been calling ...

If you are looking for a tree with white bark for your garden or trying to identify a tree that you have recently seen, this page is designed to help. White-barked trees have an otherworldly beauty ...