Since Asian soybean rust (Phakopsora pachyrhizi) was confirmed in Louisiana on November 10, 2004, a lot of questions have been raised on the impact of Asian soybean rust (ASR) on soybean yield and grain quality. No accurate yield losses due to ASR in the United States can currently be estimated. However, research from around the world has seen yield loss as high as 90 percent under the worst cases. We have summarized what we can expect from ASR on soybean yield and grain quality based on observations from other countries.
Pedersen, Palle, "Effect of Asian soybean rust (Phakopsora pachyrhizi) on soybean yield and grain quality" (2005). Integrated Crop Management News. 2359.
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