NPDN 2007 Meeting - Oregon Department of Agriculture Plant Health Section Programs-2006

NPDN National Meeting 2007

Poster Abstract

Oregon Department of Agriculture Plant Health Section Programs-2006

Authors: SHAWN MENG, Nancy Osterbauer, Sid Sedegui, Cindy Fraley, Robin Ludy, Aaron Trippe, Melissa Austin, Renecca Tippner-Hedges, Erika Berghauer, Moriah Schalock

Affiliations: Oregon Department of Agriculture, Salem, Oregon 97301, USA

There are five main programs within the Plant Health Section, Oregon Department of Agriculture: seed field inspection, nematode survey, virus certification, post-harvest seed testing, and Phytophthora ramorum certification. In 2006, 558 seed crop fields (12,507 acres) of 19 different crops were surveyed for seed-borne pathogens of regulatory concern. The most common diseases observed were cabbage stem rot (Sclerotinia sclerotiorum) and carrot bacterial leaf blight (Xanthomonas campestris pv. carotae). Exactly 122 soil and root samples were tested for Columbia Root Knot Nematode (CRKN) and other plant parasitic nematodes to meet Canadian import requirements. No CRKN was found. ODA has begun to collect soil samples for potato cyst nematode (Globodera pallida) and golden nematode (G. rostochiensis). ELISA was used to test 13,582 trees grown in nurseries participating in Oregon's virus certification program. Infection rates ranged from 0% for TmRSV to 10% for ACLSV. Over 10,000 blueberry plants were tested for BBShV and BBScV; 4% of plants were infected with BBShV. Over 3,800 seed lots for exports were tested in the lab for quarantine pests. A total of 79,900 samples were tested for P. ramorum to meet the requirements of USDA's Federal Order for West Coast nursery stock. P. ramorum eradication efforts continue in forested areas of Curry County.

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