Ground beetles are postdispersal weed seed predators, yet their role inconsuming buried seeds is not well studied. We conducted greenhouseexperiments to investigate how seed burial affects consumption of weed seeds(volunteer canola) by adult ground beetles (Coleoptera: Carabidae). Seedburial depth influenced seed consumption rates as demonstrated by asignificant interaction between seed burial depth, carabid species, andgender of the carabid tested. We observed higher seed consumption by femalesof all species, and greater consumption of seeds scattered on the soilsurface compared with seeds buried at any depth. However, there was evidenceof seed consumption at all depths. Adults of Pterostichus melanarius (Illiger) and Harpalus affinis(Schrank) consumed more buried seeds than did those of Amara littoralis Mannerheim. Agricultural practices, such as tillage,bury seeds at different depths and based on the results of this study, thesepractices may reduce seed consumption by carabids. Soil conservationpractices that reduce tillage (conservation or zero tillage) will favorgreater weed seed predation due, in part, to the high availability of seedsat the soil surface or at shallow soil depths.