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Revised June 2009. A more recent revision exists. Information within this publication may be outdated. Please look for up-to-date information in the OSU Extension Catalog:...
Published November 2010. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised July 2011. Reviewed July 2015. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 2006. This publication was replaced by OSU Extension publication EM 9020. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the...