A deadly new oak-tree disease can be prevented by pruning them in the dormant season (if needed) instead of spring or summer.

Some lawn maintenance is recommended now that the leaves have fallen.Experts explained why this is the best time of year to ...

Q: One of my five oak trees is having this problem and I’m wondering what I should do. I hope it’s not a disease that could ...

Oak wilt is a fungal disease that can weaken white oaks and kill red oak trees within just a few weeks. The fungus enters the ...

I don't know what this is on my oak tree, but is it anything I should be concerned about? Should I spray with something?

Oak trees are susceptible to various diseases that can compromise their health. If you notice changes in the green foliage on ...

A UC Berkeley-led citizen science project has discovered at least four outbreaks of a new, potentially more aggressive form ...

Additionally, infected oaks can spread the disease to other trees through underground root connections or grafts, creating an ...

If there is one certainty for all humans, it’s that we are drawn to natural elements.

From now through the end of December is the time of year to inspect your trees for Sudden Oak Death. The mold pathogen that causes Sudden Oak Death, phytophthora ramorum, is most active during wet ...

Bradford pears have notoriously weak crotches (branch angles). Think of your index and middle fingers forming a “V” for ...