Pacific Southwest

Title: Epidemiology of Phytophthora ramorum in Oregon

Author: Hansen, E.M.; Kanaskie, A.; Goheen, E.M.; Osterbauer, N.; Sutton, W.

Date: 2006

Source: In: Frankel, Susan J.; Shea, Patrick J.; and Haverty, Michael I., tech. coords. Proceedings of the sudden oak death second science symposium: the state of our knowledge. Gen. Tech. Rep. PSW-GTR-196. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 27-29

Station ID: GTR-PSW-196

Description: We are studying how P. ramorum survives and spreads in Oregon tanoak forests. The Oregon outbreak is similar to the epidemic in redwood-tanoak forests of California, with several important differences, however. The disease is confined to scattered stands within a 12 m² area, and it is subject to an ongoing eradication effort. While eradication has not yet eliminated the disease, inoculum levels are low. As a consequence, myrtlewood is seldom infected and is not important in the epidemic.

Keywords: sudden oak death, sporangia, aerial dispersal, rain-splash dispersal

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Citation

Hansen, E.M.; Kanaskie, A.; Goheen, E.M.; Osterbauer, N.; Sutton, W.  2006.  Epidemiology of Phytophthora ramorum in Oregon.   In: Frankel, Susan J.; Shea, Patrick J.; and Haverty, Michael I., tech. coords. Proceedings of the sudden oak death second science symposium: the state of our knowledge. Gen. Tech. Rep. PSW-GTR-196. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 27-29.