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Southern Drought Lessened Rust Risk for Nebraska

You still should monitor its movement.

Dry conditions in the southern United States this growing season greatly reduced the risk soybean rust will show up in Nebraska this year, says Loren Giesler, a University of Nebraska-Lincoln plant pathologist.

Soybean rust hasn't hit Nebraska in the four seasons it's been in the U.S. “Once we get to early July, if rust has not become more active, our risk for a significant disease problem is very low to no chance," Giesler says.

Soybean rust was found in early June in Liberty County along the gulf in eastern Texas. “That was the earliest we have seen soybean rust this far west, but a significant amount of rust has not been found in Texas and they are currently pretty dry," Gielser says. "This is definitely a potential source of rust for Nebraska, but there will need to be much more development and spread for this to reach us."

Although it's still unknown whether rust will strike Nebraska, several resources are available to soybean growers to keep track of its movement and to gain more information about the disease and its management.

The UNL Targeting Soybean Rust Web site is available at, a site that offers a one-stop soybean rust resource center for Nebraska soybean growers.

"Staying aware of where soybean rust is throughout the growing season is critical to managing the disease," says Giesler. "This Web site offers a link to the latest confirmed occurrences as posted on the U.S. Department of Agriculture's Soybean Rust Information Web site. It also will offer up-to-date soybean rust fungicide information."

The Web site offers photos of soybeans infected with rust and other diseases, crop insurance information and other recommended Web sites.

Again, sentinel plots have been planted across the U.S., including 30 in Nebraska. Many of these plots are being coordinated by UNL Extension educators.

All sentinel plot observations are entered into the USDA Soybean Rust Web site at

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