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New species of root knot nematode in North Carolina causing problems

In Southeast Farm Press

By Danny Pierce, North Carolina Agricultural Consultants Association

I have been taking soil and nematode samples in Eastern North Carolina for 33 years. I’ve seen lots of changes in these years, especially with nematodes. The most drastic change has been the introduction of a new species of root knot — eloidogyne enterlobii. It is also called meloidoyne mayaguensis.

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UGA researchers taking part in soybean root-knot-nematode resistance program

In Southeast Farm Press

By Randy Mertens, University of Missouri

Scientists from the University of Georgia, the University of Missouri and the Beijing Genome Institute have teamed up to use next-generation sequencing to identify two genes — out of approximately 50,000 possibilities — that defend soybeans from damage caused by the root-knot nematode (RKN).

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Soil disease control starts with soil sampling

From Delta Farm Press

Two of the greatest soilborne concerns in the Mid-South soybean world, according to Mississippi Extension Plant Pathologist Tom Allen, are reniform and root-knot nematodes. “Nematodes are a tremendous problem in the Mid-South due to the level of acreage dedicated to continuous soybean or soybean following continuous cotton,” he says.

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A Greener Way to Raise Cotton and Combat Nematodes

By Dennis O’Brien

U.S. Department of Agriculture (USDA) scientists are using molecular tools to help cotton growers cut back on their use of pesticides in controlling one of their worst adversaries: the root-knot nematode (Meloidogyne incognita). Worldwide, the soil pest costs growers up to 10 percent of their crop, and it’s a constant threat in the Southeastern United States, where it thrives in the sandy soils.

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