2017
Chemical Management of Nematode Damages & Populations
Category:
Sustainable Production
Keywords:
NematodePest
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Lindsay Thiessen, North Carolina State University
Co-Principal Investigators:
Project Code:
17-093
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Soybean cyst nematodes and root-knot nematodes cause damages to soybean throughout North Carolina. Resistance is available for several races of SCN; however, heavy reliance on host resistance for SCN management may lead to a race shift within a field. Crop rotation is the best control method nematode, but some regions lack economical options for crop rotation. This research provides information regarding chemical control of SCN and RKN in soybean, including seed treatments containing chemical or biological agents for control, as well as applications of chemical or biological agents. The main objective is to determine the best chemical management practice to reduce the impact of SCN and RKN.

Key Benefactors:
farmers, agronomists, extension agents

Information And Results
Project Deliverables

Final Project Results

Seed treatments have been recently developed for use as nematode control in soybean production; however, little information was available for North Carolina producers. Given the different environments that soybean is produced in within the state, the level of control seed treatments may differ between regions and nematode populations. To address this, seed treatments were assessed in Johnston and Hyde counties. Seed treatments did not improve yields at either site, nor were nematode populations or damages reduced by the seed treatments. This study will be repeated in 2018 on several other sites, and will include in-furrow/drench applications that may improve the efficacy of chemicals applied.

This work has described the minimal efficacy of seed treatments on aggressive nematodes and fields with high populations of nematodes, which saves producers on costly seed treatment applications that provide no economic benefit to manage nematodes. Further, field trials will continue to assess the cost of seed treatments and the benefit they provide with different nematode populations, including soybean cyst nematode and root knot nematodes.

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.