Forest Science and Health

Firewood Resolution in a Nutshell

NASF members passed Resolution 2017-2 at their Annual Meeting in Charleston, WV, this past week. Resolution 2017-2 urges the national firewood packaging industry to continue to pursue a “clean” voluntary firewood certification program which includes federal recognition and an easily recognizable educational consumer label. As experience shows, even with federal inspection processes in place for past international and interstate commerce of wildlife and plant life, pests find their way into products either locally moved or internationally transported.  

NASF Annual Report

The NASF Annual Report highlights accomplishments by the nation's 59 State Foresters and their staffs to advance policy, communications, and operations priorities that help protect and enhance America's "green infrastructure": trees.

Fires Test Performance of Tall Wood Buildings

Wood buildings provide an array of economic and environmental benefits, and interest in capitalizing on those benefits by constructing mid- to high-rise buildings using cross-laminated timber (CLT) is growing.

CLT is made from layers of dried lumber boards stacked in alternating direction at 90-degree angles, glued and pressed to form solid panels. These panels have exceptional strength and stability and can be used as walls, roofs, and floors. Additionally, calculations have shown that a seven-inch floor made of CLT has a fire resistance of two hours.

Tree mortality in Lake Tahoe’s forests has increased drastically

Lake Tahoe’s famously clear waters continue to warm, and the surrounding forests face dire threats due to drought, disease and insects, according to the annual Tahoe State of the Lake report by researchers at UC Davis.

The second deepest lake in the United States after Crater Lake, Lake Tahoe has warmed by half a degree Fahrenheit each year for the past four years — 14 times faster than the historic rate, the report said.

Washington, DC Launches New Tree Watering App

Young street trees with watering bags are thankfully a frequent site in Washington, DC.

During the last tree planting season in our nation's capital (October 2016 through April 2017), the city planted 8,200 trees, increasing urban tree canopy coverage of the District to 38 percent.

Overall, the District maintains more than 215,000 trees throughout the city. Therefore, it is understandable that during these periods of intense heat the District may not be able to water

Forester: Bark Beetles Getting Worse in Idaho

Bark beetle problems continue to worsen on Northern Idaho forest lands, a university forester says.

Drought stress from several years ago has led to the increased pressure now, said Chris Schnepf, University of Idaho Extension forester in Coeur d’Alene, Idaho.

Western pine beetles, pine engraver beetles, fir engraver beetles and Douglas fir beetles all are more active this year, he said.

“All of these bark beetles are native insects, they’re always around at some endemic level,” he said. “But when you have stand conditions that favor them, they start to take off.”

Invasive emerald ash borer gets closer to South Dakota

Ash trees in South Dakota are on the cusp of endangerment.

The emerald ash borer (EAB), a green beetle that feasts on the vascular tissue of ash trees, has been expanding from its original discovery in Detroit, Mich. It has killed hundreds of millions of trees in the United States in the past decade, expanding from the Great Lakes region in 1990 to 25 states today, including Iowa, Minnesota and Nebraska.