Magazine article American Forests

Oak Disease Poses New Threats

Magazine article American Forests

Oak Disease Poses New Threats

Article excerpt

CLIPPINGS

At first it seemed like the ebola of oaks-- new, sudden, virulent. Oozing reddish-- brown sap announced the mysterious killer's presence, then the tree's entire crown wilted and, seemingly overnight, it died. But as its range of victims grows, sudden oak death (SOD) is revealing itself to be a highly complex adversary. Should it spread widely, it could provoke ecological and economic angst of continental proportions.

Besides its original victims along the California coast--coast live oak, tanoak, and California black oak--SOD sickens or kills an array of species ranging from California buckeye and bigleaf maple to evergreen huckleberry and bay laurel.

Indeed, by the time this issue reaches your hands the magnificent redwood may prove to be a host, although it's unlikely SOD will kill it outright. Likewise, foresters in Oregon may know if SOD has spread beyond a 9-square-- mile quarantine zone where last summer they cut and burned several blocks of infested trees and shrubs. …

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