Agronomic Services — News ReleaseFOR IMMEDIATE RELEASE
MONDAY, NOVEMBER 22, 1999
Soybean cyst nematodes found in Lincoln CountyRALEIGH — The recent detection of soybean cyst nematodes in soil samples taken in western Lincoln County is prompting the N.C. Department of Agriculture and Consumer Services Agronomic Division to recommend that growers test their fields for nematodes.
This marks the first time this agricultural pest has been found in Lincoln County, although it has been known to occur in neighboring Cleveland County for many years.
Soybean cyst is the most problematic soybean disease in North Carolina, causing losses in excess of $20 million per year. The nematode may reduce yields for several years before the problem becomes obvious. Although most nematodes cause damage in sandy soils, soybean cyst nematodes can cause severe damage in soils that are not sandy.
Growers in Lincoln County are strongly advised to sample their fields for nematodes, according to Steve Dillon, a regional agronomist with the NCDA&CS Agronomic Division who discovered the nematodes in a random sample he collected.
Submitting soil samples is the only way to detect nematodes before losses become severe. For $2 per sample, the NCDA&CS Agronomic Division can tell growers which nematodes are present, how many there are, whether they pose a threat to the crop, and what can be done to manage them.
Using cyst-nematode-resistant varieties of soybeans and rotating crops are the best ways to manage soybean cyst, Dillon said. Crop rotation is important because soybean cyst can survive and reproduce on only a few crops, like green beans and soybeans.
The distribution of soybean cyst nematodes in western North Carolina is limited. If growers are vigilant about identifying newly infested sites and following management recommendations, they may be able to slow the spread of this pest. It is also important to minimize soil movement from infested to uninfested fields.
For more information on soybean cyst nematodes, contact the Agronomic Division nematode assay section at (919) 733-2655 or Dillon at (828) 453-0104. He is available to help growers pinpoint nematode and soil fertility problems, take samples, and interpret report data and recommendations.