Start Date: Mar 01, 2009
End Date: Mar 01, 2013
The USDA lab will conduct field trials, isolate and purify representative Aspergillus isolates from soil, corn and other sources. The cooperator will develop genotyping methods to ascertain biotypes of A. flavus present in these populations and use these methods to ascertain the source (Soil, insect or air) of Aspergillus present in infested corn grain. In other studies the ARS will establish field and greenhouse studies to assess the potential for biological control strain K49 to competitively displace toxigenic strains of Aspergillus from soil and corn grain. These studies will establish the efficacy of K49 when applied as various formulations e.g., bioplastic granules.