Featured Research

from universities, journals, and other organizations

Asian Soybean Rust Disease Found In Kudzu

Date:
May 21, 2007
Source:
Louisiana State University Agricultural Center
Summary:
Farmers growing soybeans this year should be on alert, but not panicked, after last week's discovery of Asian soybean rust in a kudzu patch in Iberia Parish, Louisiana, USA.

Farmers growing soybeans this year should be on alert, but not panicked, after last week’s discovery of Asian soybean rust in a kudzu patch in Iberia Parish.

“Right now, it’s just sit and watch and wait,” said Dr. Clayton Hollier, LSU AgCenter plant pathologist. “We’re telling them it’s a little too early to do anything.”

Whether Asian soybean rust is a major problem in Louisiana this year depends on the weather, Hollier said. Regular rainfall in South Louisiana so far this spring could set the stage for the disease to spread. Rust did not show up last year until late in the growing season because of the dry summer.

“As we continue to have those showers, the more chances are of having problems this year,” Hollier said, adding that if the disease becomes a significant problem, farmers may have to use two applications of fungicides, considerably reducing profits.

“Just the fact that it was found so early compared to last year is alarming,” Hollier said.

The first discovery of 2006 was 53 days later than the confirmed finding of Asian soybean rust in kudzu this year.

Soybeans that have emerged are still in the vegetative phase, and ASR is more of an issue for the later reproductive stages, he said, noting that monitoring for the disease goes on year-round.

“We’re doubling our efforts now,” he said.

Several other fungal diseases, such as aerial blight, cercospera and pod stem blight, are also devastating for soybeans.

“I don’t want people to forget about those diseases just because this disease has raised its ugly head,” Hollier said, adding that farmers across the state treated their crop for those diseases last year, and the effort probably was a factor in suppressing Asian soybean rust.

Hollier said his research associate, Rose Berggren, found the rust on May 8 in an area where it was found last year, but he said confirmation of the disease was necessary before releasing word of the discovery.

“Because of these implications and the fact that our strategies may have to change because of ASR’s earlier presence, the delay in announcement has everything to do with making certain that the diagnosis was correct. Initial microscopic observations indicated to us that ASR was present, but there were some abnormally shaped spores present,” he said.

Adding to the delay was the requirement that two separate tests be used to confirm the disease.

“Future diagnoses will not take so long because of our knowledge of ASR presence,” he said.

The U.S. Department of Agriculture (USDA) reports that in addition to the Iberia Parish find, Asian soybean rust has been detected in 10 counties in Florida and five counties each in Georgia and Alabama.

According to the USDA, soybean rust is still active in six counties in Florida. Conditions in Louisiana are wetter than those in Florida, where most of the state is under drought conditions. The disease was also detected on soybeans in one county in Texas, but that field has since been cultivated and planted with corn.


Story Source:

The above story is based on materials provided by Louisiana State University Agricultural Center. Note: Materials may be edited for content and length.


Cite This Page:

Louisiana State University Agricultural Center. "Asian Soybean Rust Disease Found In Kudzu." ScienceDaily. ScienceDaily, 21 May 2007. <www.sciencedaily.com/releases/2007/05/070517111944.htm>.
Louisiana State University Agricultural Center. (2007, May 21). Asian Soybean Rust Disease Found In Kudzu. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2007/05/070517111944.htm
Louisiana State University Agricultural Center. "Asian Soybean Rust Disease Found In Kudzu." ScienceDaily. www.sciencedaily.com/releases/2007/05/070517111944.htm (accessed July 29, 2014).

Share This




More Plants & Animals News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com
Asteroid's Timing Was 'Colossal Bad Luck' For The Dinosaurs

Asteroid's Timing Was 'Colossal Bad Luck' For The Dinosaurs

Newsy (July 28, 2014) The asteroid that killed the dinosaurs struck at the worst time for them. A new study says that if it hit earlier or later, they might've survived. Video provided by Newsy
Powered by NewsLook.com
Raw: Sea Turtle Hatchlings Emerge from Nest

Raw: Sea Turtle Hatchlings Emerge from Nest

AP (July 27, 2014) A live-streaming webcam catches loggerhead sea turtle hatchlings emerging from a nest in the Florida Keys. (July 27) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins