The article discusses the results of a study which show that common baking ingredients, namely, brewer's yeast and brown sugar, may offer a way to bolster the effectiveness of Cydia pomonella granulovirus (CpGV), a natural insect pathogen commercially formulated to kill codling moth larvae. Topics include the use and effectiveness of CpGV, how the researchers came up with the approach using yeast and sugar, and the other natural adjuvants evaluated to make the virus more effective.