Project Details:

SCN Coalition: Monitoring Populations in Ohio

Parent Project: This is the first year of this project.
Checkoff Organization:Ohio Soybean Council
Organization Project Code:18-R20
Project Year:2018
Lead Principal Investigator:Anne Dorrance (The Ohio State University)
Co-Principal Investigators:

Contributing Organizations

Funding Institutions

Information and Results

Comprehensive project details are posted online for three-years only, and final reports indefinitely. For more information on this project please contact this state soybean organization.

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Final Project Results

Updated March 26, 2019:
Objective 1 Sample bags were given to producers via mail and 1,000 were prepared for Farm Science Review. Additionally, sample bags were given to county educators at a training in December. We processed the samples at two locations, in the Niblack lab in Columbus and the Dorrance lab in Wooster. For the first report in July 2018 we had received 83 samples from 22 counties in total (July 1) By December we received 238 samples from 37 counties in total and all were processed and the numbers have been reported back to the person who submitted the sample. SCN Population Level (eggs/100 cc) Total fields % processed None Detected 89 37.4 Trace (40-200) 58 24.4 Low (200-2000) 58 24.4 Moderate (2000-5000) 22 9.2 High (5000 +) 11 4.6 Objective 2. The samples from objective 1 that have egg counts higher than 500 eggs/100 cc of soil will be moved into the greenhouse screen to determine the SCN type. Populations of SCN will first be increased on Williams 82. Test lines [PI548402 (Peking), PI88788, and PI437654] and positive controls (Lee74, Williams 82) will be inoculated with 2500 eggs/second stage juveniles to determine relative virulence. In the past 3 months • 30 populations were increased under greenhouse conditions. • 8 populations are currently in SCN Type greenhouse test Objective 3. Several different SCN management studies are in progress. 1. A study that is evaluating if Rye has any influence on SCN populations was planted again for the third year with a cover crop. a. Fall soil samples were collected to assess preliminary SCN population numbers and analysis is in process. 2. Field experiments at 3 locations with high SCN populations were finally harvested to evaluate Seed treatment nematicides. Processing of soil samples was completed for some locations. One is still in progress, and analysis. Additional information: 1. Dorrance, Ralston, and Winger all participated in the SCN Coalition Meeting held in St. Louis MO on Nov 6-8th. Excellent discussion and planning for the 2019 season.

Project Years