7/22/2013 at 12:00 a.m.
Travis Faske, University of Arkansas Extension Plant Pathologist, offers farmers advice on southern rust identification and management practices:
“Southern rust was found July 19 near Caraway. This first report of 2013 is one month later than in 2012 when it was found near Pine Bluff. Clusters of cinnamon brown pustules were observed at mid canopy with a disease incidence of less than 1 percent of the leaf area. Pustules were somewhat dull and not actively sporulating — which was possibly related to dry conditions — but were still identifiable from common rust. Given the current weather forecast of scattered showers in the state, it is likely southern rust will be actively sporulating by next week and will be much easier to spot in the field. This does not mean all fields should be protected with a fungicide, but it is a reason to scout for southern rust since it has been detected in the state.”
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