If you bought a live pine tree for Christmas, you may be thinking about planting it in your yard. Here in Tucson we are in Sunset Zone 12. Most pine trees that do well in our desert are imports from ...

Gnarled, dead bristlecone pine trees, which can live more than 5,000 years, stand where young limber pine grow around them. Limber pine is beginning to colonize areas of the Great Basin once dominated ...

Do you have a mature pine tree with bunches of brown needles? It may be suffering from a fungal disease called diplodia tip blight. “Diplodia has become more common due to environmental stress and ...