The fungal disease “oak root rot” (Armillaria mellea) has evolved with California oaks and other native plants. It is parasitic on oaks and other plant species, but if these plants are growing in our ...

Question: Oak root fungus is a big problem in the hills, and there is little one can do about it. Some say there are no plants that are 100% resistant to it. Do you know of any? --C.A., Pasadena ...

Q: I have several clusters of large tan colored mushrooms that have sprouted up in my lawn near one of my trees. The clusters are all sort of in a row but with a foot or two between clusters. Can you ...

Q: I have a pine tree on the edge of my lawn that has clusters of mushrooms coming up around the base of the trunk. My friend told me these mushrooms are a sign that the tree has rotting roots and the ...

Among the signs of autumn is the increasing appearance of mushrooms. Have you noticed them popping up in your lawn or garden? If you have seen them and wondered if they're harmful to your plants, you ...

Waiting until the leaves drop in fall is a rule of thumb for pruning shade trees, mainly because you can see bare limbs better, and the job is less “messy” without leaves attached to the cut branches.

Iowa State researchers are getting to the root of a problem with some Iowa Bur Oak trees.The disease is caused by a fungus and can first be spotted attacking the leaves on Bur Oak trees."Somebody ...

With the help of a new grant, a team of researchers at the University of Minnesota researchers are studying oak wilt, an invasive fungus that is threatening Minnesota’s oak tree population. Sometimes ...