National Agricultural Genotyping Center announces new tools in corn disease identification
ST. LOUIS — Identifying corn diseases and pursuing the best management plan available just got easier, faster and more cost effective due to new testing protocols announced by the National Agricultural Genotyping Center located in Fargo, N.D.
“Farming is a complicated pursuit that involves many choices. Making the right choice at the right time can have a huge effect on profitability,” said Larry Hoffman, chairman of the National Corn Growers Association’s Corn Productivity & Quality Action Team. “This is especially true when it comes to identifying the dozens of diseases that can harm healthy corn plants, yields and grain quality.”
Corn has effective genetic resistance to many of the important diseases, according to Pete Snyder, president and CEO of NAGC, however, numerous challenges remain in identifying corn diseases in timely fashion. NAGC is targeting a couple of key diseases, Goss’s Wilt and Xanthomonas, in their first disease assays, or tests now available to corn farmers, agronomists and crop consultants.
“A key part of our mission at the National Agricultural Genotyping Center is to translate scientific discoveries into solutions for farmers and production agriculture. This is another important step in that regard,” Snyder said. “The new assays we have developed will provide proper identification in weeks rather than months and cut costs substantially.”
NAGC, a non-profit initiative founded by the NCGA and Los Alamos National Laboratory, will provide research and testing services to both public and private researchers. The center translates scientific discoveries into solutions for production agriculture, food safety, functional foods, and bioenergy. and national security.
Cost savings from the actual testing are as much as 75 percent less with a move from single sample testing to utilizing 96 sample trays. NAGC is working with farmers via crop consultants and agronomists to streamline the process of collecting samples and ramping up the assay process.
Goss’s wilt is a bacterial disease that may cause systemic infection and wilting of corn plants, as well as severe leaf blighting. Under the right conditions this disease can cause devastating damage with grain yield losses approaching 50 percent. Xanthomonas, another bacterial disease, is being targeted because it is often confused with Gray Leaf Spot leading to ineffective fungicide treatments and loss of income for farmers.
“It can cost $40 an acre to treat Gray Leaf Spot, but those treatments are ineffective against Xanthomonas,” Hoffman said. “And it’s not just lost profit but lost opportunity. Once identified, we can deal with Xanthomonas through management practices such as tillage and crop rotation.”
Testing is largely done through samples of the effected plant leaf tissue. However, soil samples can be assayed by NAGC early in the growing season to identify or the presence of Xanthomonas.
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