Location: Horticultural Crops ResearchTitle: Sudden Oak Death in Oregon forests: Recent disease intensification and spread, and changes to the management program Author
|Kanaskie, Alan - Oregon Department Of Forestry|
|Goheen, Ellen - Us Forest Service (FS)|
|Hansen, Everett - Oregon State University|
|Reeser, Paul - Oregon State University|
|Sutton, Wendy - Oregon State University|
|Grunwald, Niklaus - Nik|
|Rhatigan, Ron - Oregon Department Of Forestry|
|Wiese, Randall - Oregon Department Of Forestry|
|Laine, Jon - Oregon Department Of Forestry|
Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 11/5/2014
Publication Date: 1/1/2015
Citation: Kanaskie, A., Goheen, E.M., Hansen, E., Reeser, P., Sutton, W., Grunwald, N.J., Rhatigan, R., Wiese, R., Laine, J. 2015. Sudden Oak Death in Oregon forests: Recent disease intensification and spread, and changes to the management program. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 81p.
Technical Abstract: Sudden Oak Death, caused by Phytophthora ramorum, is lethal to tanoak (Notholithocarpus densiflorus) and threatens the species throughout its range in Oregon. Since July 2001, an interagency team has been attempting to eradicate and slow spread of disease through a program of early detection and destruction of infected and nearby host plants. Because of increasing disease, high eradication costs and limited funding, all infested sites cannot be treated equally. Highest priority for treatment are sites located at or beyond the leading edge of the infestation or near the quarantine boundary. Within a 145 km2 Generally Infested Area near the center of the quarantine area most sites have not been treated and the disease has been allowed to intensify and spread. Where eradication treatments have stopped, canopy tanoak mortality increased from nearly zero to 50 percent during the 2012-2014 period. Changes to the sudden oak death management program are discussed.