Provided is a biocontrol combination and method for improving quality of a shelled egg, for example, by reducing pathogen contamination. The combination may include at least one first component including particulate matter holding at least one natural oil and at least one second component including a cocktail of antagonistic bacteria. The first component and second component may be combined into a formulation prior to application onto the shelled egg surface. The method may additionally include applying the biocontrol combination onto shelled eggs. Also provided is a package including the biocontrol combination and instructions for use thereof.
