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Soybean rust sentinel plot program in Ontario, Canada

Presenter: Albert U. Tenuta , Ontario Ministry of Agriculture, Food and Rural Affairs, P.O. Cox 400, 125 Main Street East, Agronomy Building, Ridgetown, Ontario Canada
Coauthor(s): Sarah Hambleton, Agriculture and Agri-Food Canada (AAFC), Eastern Cereal and Oilseed Research Centre (ECORC, 960 Carling Ave. (K.W. Neatby Building,), Ottawa, Ontario K1A 0C6; Terry R.Anderson, Agriculture and Agri-Food Canada, GPCRC, 2585 County Road 20 East, Harrow Ontario N0R 1G0; and Cheryl Van Herk, OMAFRA, P.O.Box 400, Ridgetown, N0P 2C0

Soybean rust (Phakospora pachyrhizi) is a new and invasive fungal disease of soybean in North America. The risk to Ontario and Canadian soybean production from this invasive disease increased substantially with the confirmation and subsequent spread of P. pachyrhizi in the southern United States. As an extension of the comprehensive monitoring program put in place for the 2005 growing season by the United States Department of Agriculture (USDA), a series of soybean sentinel plots (44) were established across the soybean production belt in southern Ontario (from Windsor to Ottawa). The sentinel plot program involves intensive scouting for symptoms and field evaluations by the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) in conjunction with industry partners. Questionable leaf samples were screened for the pathogen by Agriculture and Agri-Food Canada (AAFC) using a rapid PCR-based detection tool developed by the USDA. Although soybean rust was not detected in Ontario or Canada during the 2005 growing season, the sentinel plot network provides an effective decision support tool for producers and advisors considering fungicide applications. Funding for this project was provided in part by Agriculture and Agri-Food Canada through the Agricultural Adaptation Council’s CanAdvance Program, the Ontario Soybean Growers and the Ontario Soybean Rust Coalition.

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