As soybean plants lose leaf area and their roots deteriorate due to SDS, their yield-making components are damaged. Flower and pod abortion are common, which results in few pods and seeds. Seeds may also be smaller and late-forming pods may not fill or mature. Pioneer experts recommend several management options to combat these effects year after year.
Management practices for SDS include selecting tolerant varieties, planting disease-prone fields last, improving field drainage, reducing compaction, maintaining proper fertility on fields, evaluating tillage systems, and reducing other stresses on the crop.
"Growers should also scout their fields for SCN because there is a tendency for products susceptible to SCN to display more severe SDS symptoms," Thompson states.
Not only does SCN increase stress on soybean plants, it also creates wounds through which the SDS pathogen can enter the roots. If you discover SCN in your fields, consider planting a high SCN- and SDS-tolerant soybean variety in the future.
Another SDS detection tool you can rely on is the new Pioneer Field360 Notes app. The app will help you track SDS field history and assist with scouting. It streamlines and organizes field-by-field agronomic information for communication among DuPont Pioneer agronomists, sales professionals and growers, and is compatible with all tablets and mobile devices.
For more information on SDS scouting tips or management options contact your local DuPont Pioneer agronomist or Pioneer sales professional or visit pioneer.com.