Management of Sclerotinia stem rot in soybeans with fungicides is limited by the difficulty of achieving satisfactory fungicide deposition to the interior of the canopy where infections begin. This project is the second year of a 3-year study to improve fungicide performance by optimizing spray deposition to the interior of the soybean canopy. Field trials utilizing boom-mounted nozzles and drop nozzles will be conducted to quantify the impact of nozzle placement, droplet size, spray pattern, application pressure, water volume, boom height, and adjuvants on spray deposition within the canopy, Sclerotinia control, soybean yield and quality, and sclerotia contamination of grain. Field trials...
While this study is focused on improving control of Sclerotinia stem rot, the results are expected to be broadly applicable to other pest targets for which pesticide deposition to the interior of the soybean canopy is desired.
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.