2007 Annual Report 1a.Objectives (from AD-416) Developing and Utilizing the Semiochemicals to Control the Pink Hibiscus Mealybug (PHM) and other Invasive Species. 1b.Approach (from AD-416) ARS and the cooperator will jointly plan this new research. The Parties agree to cooperate in a research program on identification and synthesis of the biologically active semiochemicals and development of the strategies to control the populations of PHM and other Invasive Species. 3.Progress Report This report serves to document research conducted under a specific cooperative agreement between ARS and the Department of Entomology, Virginia Polytechnic Institute & State University. Additional details of research can be found in the report for the parent project 1275-22000-234-00D “Chemical Signals for Managing Insects.” The pink hibiscus mealybug is an invasive insect species that attacks more than 200 different plants and is a serious new threat to U.S. agriculture, forestry, and the nursery industry. Scientists synthesize and provide sex pheromone of the pink hibiscus mealybug (PHM), Maconellicoccus hirsutus (Green) which has been identified in Beltsville for PHM pest monitoring and detection. Scientist responded with collaborators through e-mails, phone calls and conference meetings and corresponding collaborations were continued.