The bumps on oak tree foliage and branches are galls caused by minute cynipid wasps, and do not harm people or the trees.

Fall is usually when people pay attention to trees to see the changing leaf colors. But homeowners should be paying closer ...

An invasive beetle that attacks more than 65 species of tree in California has been detected in San Jose, according to Santa ...

FELTON — An invasive beetle that poses a threat to the wooded abundance in the Santa Cruz Mountains was recently spotted in ...

An ecologist’s long walks and detailed observations allowed him to chronicle the shifts in an iconic habitat and grow a ...

Forty volunteers rolled up their sleeves at Murphy Park to put down the roots of six varieties of trees: Swamp White Oak, ...

Signs and symptoms of pests and diseases are also causes for concern. Apple scab on apple and crabapple trees has been ...

Swamp white oak (Quercus bicolor) is an excellent alternative ... On top of that, paper birches are prone to attack by bronze birch borers, insects that tunnel through the tree, eventually killing it.

A researcher in Ohio was surrounded by hundreds of dead ash trees. They had been wiped out by a beetle called the emerald ash ...

Squirrels and jays drive oak forests' success by spreading acorns, ensuring their survival. Balance and biodiversity flourish ...

With nearly all the wildflowers now hibernating for the winter, it’s time for the mighty oak trees to take center stage on ...

Retired after 38 years with the University of Arkansas Cooperative Extension Service, Janet Carson ranks among Arkansas' best ...