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Title: Progress of the Phytophthora ramorum eradication programme in south-western Oregon forests, 2001 - 2009

Author: Kanaskie, Alan; Hansen, Everett; Goheen, Ellen Michaels; Osterbauer, Nancy; McWilliams, Michael; Laine, Jon; Thompson, Michael; Savona, Stacy; Timeaus, Harvey; Woosley, Bill; Sutton, Wendy; Reeser, Paul; Schultz, Rick; Hilburn, Dan;

Date: 2011

Source: New Zealand Journal of Forestry Science. 41S: S169-S175. [published on-line: 24/11/2011]

Publication Series: Scientific Journal (JRNL)

Description: Sudden Oak Death (SOD) disease caused by Phytophthora ramorum Werres, de Cock & Man in't Veld was first discovered in Oregon forests in July 2001. Since then, an interagency team has been attempting to eradicate the pathogen though a programme of early detection (aerial and ground surveys, stream baiting) and destruction (herbicide treatment, felling and burning) of infected and nearby host plants, which has evolved over time. Post-treatment monitoring has indicated that although the disease has been eliminated from many of the sites and spread of inoculum may have been reduced, the disease continues to spread slowly. The quarantine area has expanded from 23 km² in 2001 to 420 km² in 2009. We attribute continued spread of the disease to the slow development of recognisable symptoms and to delays in treatment application associated with inconsistencies in funding.

Keywords: eradication, Notholithocarpus densiflorus, Sudden Oak Death, Oregon, Phytophthora ramorum, tanoak.

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Kanaskie, Alan; Hansen, Everett; Goheen, Ellen Michaels; Osterbauer, Nancy; McWilliams, Michael; Laine, Jon; Thompson, Michael; Savona, Stacy; Timeaus, Harvey; Woosley, Bill; Sutton, Wendy; Reeser, Paul; Schultz, Rick; Hilburn, Dan 2011. Progress of the Phytophthora ramorum eradication programme in south-western Oregon forests, 2001 – 2009. New Zealand Journal of Forestry Science. 41S: S169-S175. [published on-line: 24/11/2011]

 


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