Ponderosa pines stand tall in front of Yosemite Falls in California. Photo by Kevin Potter, USFS.
It can reach heights of 200 feet and live 500 years, and occupies landscapes across the western United States. Some say its bark has an unforgettable smell resembling vanilla or even cinnamon, and this tree is one tough cookie. It grows in a variety of soils and climates and survives fires that consume other species. It is also an ecologically and economically valuable tree that provides food, habitat and ponderous (heavy) lumber.
It is the iconic ponderosa pine. But the world is changing, and ponderosa pine is vulnerable to climate shifts, high-intensity wildfires and bark beetles — as well as development that replaces trees. To keep the ponderosa pine standing tall, researchers are looking for answers in its genes. Read more »
A group of stakeholders participate in a field trip within the Ashland municipal watershed. Photo credit: US Forest Service
Located at the base of the Ashland Creek Watershed, the city of Ashland, Oregon, is home to nearly 21,000 people and a bustling tourist industry that revolves around world-class theatre experiences. Rogue Valley residents and tourists actively and passionately recreate in the Ashland municipal watershed, of which the upper portion is located primarily on the Rogue River-Siskiyou National Forest.
Like many areas in Southwest Oregon, a history of fire suppression has dramatically changed the way forests could potentially respond to fires. Stands once considered to be fire-adapted and fire-resilient have become densely overgrown. As a result of this fuels buildup, a high-intensity fire could result in the loss of the watershed’s largest trees, which help maintain soil stability and clean drinking water, and provide habitat for a diverse range of wildlife species. Read more »
Using pest and tree photos, tables, and interactive maps, the Forest Health Advisory System provides vital information on future risks to forests across our nation. (U.S. Forest Service)
As our nation’s forests grow older and denser they are at greater risk of attack by pests, which can devastate some of more cherished national wildlands. Healthy forests not only provide a beautiful setting for our outdoor activities, they are at lower risk for catastrophic wild fires, and are more resilient to changes in climate and to insect and disease attack.
To address myriad issues facing our nation’s aging landscapes, the U.S. Forest Service has developed the Forest Health Advisory System, a web-based application that highlights potential future activity of more than 40 major forest pests and pathogens across 1.2 billion acres of treed lands. Read more »
Ash logs undergoing vacuum treatment to kill emerald ash borer larvae. (U.S. Forest Service)
The shiny green one-half-inch-long, one-eighth-inch-wide emerald ash borer has destroyed tens of millions of ash trees in the U.S. since the beetle’s discovery in 2002 in Detroit.
The real Ash trees comprise around seven percent of the trees in eastern U.S. forests. In urban areas, ash trees make up about 50 percent of street trees.
Ash trees are important both economically and ecologically. A wide array of products are made from ash wood, including baseball bats, tool handles, pool cues, furniture, cabinets, oars, and acoustic and electric guitars. Ash seeds are an important food source for birds, mice, squirrels, and other small mammals. Ash trees also provide essential habitat for cavity nesting birds, such as woodpeckers, owls, and wood ducks. Read more »