Protect Oregon's Brassica Crops: ODA’s black leg rules aim to control a disease outbreak

Stem of kale seed crop with black leg symptoms. Photo courtesy of Cynthia Ocamb.

Black leg is a serious disease of Brassica crops that has recently appeared in outbreaks in western Oregon. It threatens Brassica production in the Pacific Northwest. In an effort to manage the disease and get it back to low incident levels, the ODA developed black leg rules in 2014, and have revised them since. The current ODA rules are here. Cindy Ocamb from OSU has published a Clinic Close-up with detailed biological and management information which is online here. This article briefly summarizes the ODA black leg rules and the OSU Clinic close-up publication.