A late-planted, late-maturing soybean crop had growers and Extension personnel in Tier II states on the alert for Asian soybean rust this fall. Luckily, all of the necessary elements were not in place for rust spores to move north.
"Rust spreads best anywhere in the world, when the weather is cloudy, we have frequent light rains, and there are times when the dew stays on the plants for extended periods of time," Allen Wrather, University of Missouri plant pathologist at the Delta Center in Portageville, said. "This results in a greater number of hours of leaf wetness, and that is required for the rust spores to germinate and enter the plant."
Mobile
