2005 Annual Report 4d.Progress report. This report serves to document research conducted under a Specific Cooperative Agreement between Alcorn University and ARS. Additional details for this subordinate project may be found in the in-house parent project 6402-22000-034-00D entitled, "Insect Pest Suppression Strategies to Improve Production of Corn, Cotton, Soybean, and Sweetpotato in Mid South." Funds supplied to the Cooperator's Demonstration Farm in Mound Bayou, MS, were used to provide labor and supplies to support research on sweetpotatoes by scientists from Mississippi State University and ARS at Stoneville, MS.