Where Are You Now, My Love? (2 of 2) (IMAGE) U.S. National Science Foundation Caption Walter Leal, professor of entomology and chemical ecologist at the University of California, Davis, receives a handful of Japanese beetles (Popillia japonica). Through his research into the beetles' sex pheromones, Leal and his team have isolated, identified, cloned and expressed a pheromone-degrading enzyme that could be manipulated to keep males from finding and mating with females. This discovery could lead to important applications in controlling Japanese beetles, invasive pests that have threatened US agriculture since 1916. Credit Kathy Keatley Garvey, UC Davis Department of Entomology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.