Loren O'Rourke, Sacramento Tree Foundation Planting native oak species on underutilized urban public lands in Sacramento has a unique set of difficulties.

Wendy Herniman, Steward at Pepperwood Preserve, Sonoma County, California The phenology, dendrochronology and genotypes of a small multi-species community of oaks in an area of mixed hardwood forest ...

Galls are abnormal growths and can be caused by a variety of different organisms, including insects and mites, and ...

Mini mum, Mini ature, and Mini scule “ are astronomically small,” says Mark Scherz, an evolutionary biologist at Ludwig-Maximilians Universität in Munich, Germany, who described these and two ...

A Pulitzer Prize-winning weekly covering West Marin, including the towns of Point Reyes Station, Inverness, Bolinas, Stinson Beach, Marshall, Nicasio, Lagunitas, Woodacre, San Geronimo, Forest Knolls, ...

The species can also harm trees by infecting them with pathogens from the fungus they carry and feed upon. Infestation can spread to a tree’s trunk and ultimately kill the plant, the county said.

A child was injured after they were trapped under a tree in Philadelphia's East Oak Lane neighborhood. The tree fell in the area of the 6400 block of North 11th Street at around 5:45 p.m.

Wool sower galls are found primarily on white oak trees (Quercus alba) but may also be found on chestnut (Q. montana), swamp chestnut (Q. michauxii ), and swamp white oaks (Q. bicolor). In the early ...

Minister of Housing, Addictions and Homelessness of Manitoba, Bernadette Smith, says the province is responding to long-standing safety concerns at Oak Tree Towers in Portage la Prairie with major ...

More than 4,000 tree species are found only in Mexico and Central America, or Mesoamerica. Research published in Plants, People, Planet reveals that nearly half of these tree species are ...

Cottonwood trees disperse seeds via wind, using white, fluffy tufts. This typically lasts four weeks, from late May to late June. The trees are common in Michigan's Lower Peninsula, growing near ...