Soybean Rust Update – 5/1/09

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu

Soybean rust is reappearing in some of the old locations on kudzu in Florida. The severity and occurrence are low on kudzu wherever it is found at the present time. The only unsettling piece of news is that it is present on kudzu in Mobile County, AL and in several parishes in LA. This is the earliest that it has been present in those locations to date. If they continue to get plenty of rain, there is the possibility of soybean rust occurring on soybeans earlier than we have seen in the past. Since frost is out of the question now, we will just have to wait and see how the season progresses. You can keep track of soybean rust by visiting the website http://www.sbrusa.net or http://sbr.ipmpipe.org/cgi-bin/sbr/public.cgi.

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