Learn the science behind "exploding trees," why extreme cold causes frost cracks and which species are most at risk.

Because of the features of tree anatomy, decay and resulting cavities tend to propagate in a series of directions starting at the entry point, typically a wound: First, and most readily, lengthwise.

Last week a large limb broke away from a very mature live oak in Riverside Park during some high winds from the passage of a cold front. Unfortunately, it damaged the tree significantly. However, it ...

Two arboreal experts will lead a workshop on fruit tree pruning Feb. 1 at Harmony Farm Supply and Nursery in Sebastopol. Fred Frey and Kamala Dionne from Vintage Tree Care will teach the hands-on ...