Investigators: Gregory L. Tylka, Gregory D. Gebhart, Christopher C. Marett, David Soh
Funding: Iowa Soybean Association, company fees
Each year, one or more foliar-, seed-, or soil-applied products are advertised for use in managing SCN. Growers and agribusinesses in Iowa turn to Iowa State University for an unbiased evaluation of the effect of these products on SCN populations and soybean yield.
The management products are evaluated in field experiments at multiple sites throughout Iowa. The products often are evaluated on both SCN-resistant and SCN-susceptible varieties to determine the full effects of the products on yield and SCN population densities. Since 2002, field experiments have been conducted to evaluate:
| Product | Nature of the product | Application method | Results |
| Deny | biological control organism | liquid applied in-furrow | read report» |
| Gusto | biological control organism | seed treatment | read report» |
| Messenger | harpin protein to stimulate plant defenses | liquid applied as foliar spray | |
| MicroCN micronutrients + | biological control organism | liquid broadcasted and incorporated | read report» |
| N-Hibit | harpin protein to stimulate plant defenses | seed treatment | |
| N-Viro Soil | composted municipal sewage sludge | fine granule broadcasted and incorporated | read report» |
| ProsperNema | beneficial fungi | liquid broadcasted and incorporated | read report» |
| X-Cyto | plant hormones (cytokinins) | liquid applied in-furrow or broadcasted and incorporated |
