Sentences with phrase «sudden oak death»

Two sleuthing scientists track down the cause of sudden oak death, a new disease that threatens every oak, redwood, and Douglas fir in the country

Both of these important food sources are at risk — sugar pines are vulnerable to white pine blister rust, a fungal pathogen, while oaks are currently at risk from fire exclusion, mule deer predation and potentially a pathogen causing sudden oak death.

Since 1994, thousands of oak trees have succumbed to sudden oak death in 14 counties in California and Oregon.

The outbreak, known as sudden oak death, drew little national attention until this year, when it was found to threaten Douglas firs and California's vaunted redwoods.

Scientists have been sprinting to understand sudden oak death since its discovery in 1995.

Related sites More about sudden oak death, from the California Oak Mortality Task Force 2003 conference archive

This could be a real problem for Sierra black bears in the future if blister rust continues to kill sugar pines and sudden oak death moves in from the coast.»

Published, peer - reviewed science has emerged from several projects involving citizen science, Gustetic said, including the monitoring of sudden oak death affecting trees in California.

PORTLAND, OREGON — Humans may be important vectors for sudden oak death, according to new research, raising concerns that the disease ravaging California's oak woodlands may be difficult to control.

Infected camellias (inset) shipped around the country may have borne the pathogen that causes sudden oak death.

Sudden oak death (SOD) is caused by the funguslike microbe Phytophthora ramorum and has felled tens of thousands of oaks in California and Oregon.

In theory, the disease could be halted by limiting people's access to unaffected areas, but that would be a very unpopular policy and perhaps impossible to implement, he says.The rapid spread of sudden oak death is «such a dynamic system that a lot of our tools in ecology for understanding and predicting patterns are inadequate,» says Rick Ostfeld of the Institute of Ecosystem Studies in Millbrook, New York.