The root-knot nematode has become more of a management problem. Two separate surveys indicate that more than 10% of Alabama soybean fields have a detectable level of root-knot nematodes. Successful crop rotations depend on identification of the root-knot nematode species and races present in the field. The southern cotton root-knot, peanut root-knot and soybean root-knot nematodes invest fields, and they are not crop-specific. The objectives are to collect root knot nematode samples from across the state and determine the species and races present using the traditional host differential test, morphological characterization, modified isozyme analyses of root knot nematode species and DNA analysis.Key Benefactors: farmers, agronomists, Extension agents
Analyze the root knot populations using isozyme analyses with esterase and malate dehydrogenase which requires a few days to run the lab analysis. Isozyme patterns are matched to species of the root knot nematode.
The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.