Aspen is the only transcontinental broadleaf tree growing from Newfoundland to California and Mexico. Aspen trees tend to have rough bark ... like Cytospora, leaf spots, and other cankers that ...

Donald R. Young, President and CEO of Aspen Aerogels Inc . (NYSE: ASPN), recently acquired 20,000 shares of common stock in a transaction dated May 12, 2025.The purchase comes as the stock has ...

Aspen Country Day School will present its annual spring play “Forever Young” on Friday and Saturday at the Wheeler Opera House. As is tradition, the musical was written and choreographed by ...

Unlike the greater peachtree borer, Cytospora canker oozing can occur in the upper trunk and branches. The disease can cause sunken, oozing cankers in the bark of the tree. The cankers can expand ...

By Mike Barnes Senior Editor Jesse Colin Young, the singer, songwriter and founding member of the Youngbloods, the 1960s group best known for their top 10 hit “Get Together,” has died.

State and federal agencies are limited in their ability to fence off aspen stands in the wilderness area, so forest managers have turned to these hunting permits as a tool to help the young aspen ...

As the canker girdles a stem, the portion of the stem above the canker gradually dies. Smaller twigs with immature bark may become discolored as the pathogen spreads. Symptoms may vary depending on ...

Named Pando, the tree is a quaking aspen (Populus tremuloides) with around 47,000 stems connected by a root system that sprawls about 43 hectares in Utah’s Fishlake National Forest. It has long ...

DENVER (KDVR) — What changes colors, shakes and covers five million acres of Colorado? Quaking aspen trees — they’re a “symbol of the Colorado high country,” according to Colorado ...

Your description suggests that your Colorado blue spruce (Picea pungens ‘Glauca’) is suffering from cytospora canker, a disease caused by a fungus that attacks spruces, hemlocks, firs and larches.

“As a Fellow and former trustee of the Aspen Institute, I have witnessed its commitment to enriching the lives of young people of all backgrounds,” said Kaya Henderson. “Every young person ...

Cankers usually start at a wound that gives them a way into the plant. It may be a pruning wound, a broken branch, a scrape or nick in a young tree’s bark from careless handling during planting ...