2004 Annual Report 4.What were the most significant accomplishments this past year? D. Progress Report. This report documents research conducted under a specific cooperative agreement between ARS and the University of California, Riverside. Additional details of research can be found in the report for parent CRIS 5344-22620-015-00D, Ecologically-Based Pest Management Strategies for Western Cotton. Soil application of imidacloprid and thiamethoxam to pink hibiscus mealybug (PHM) infested mulberry trees. Drastic reduction in infestations occurred with each treatment compound. Neonicotinoid chemistry has high potential for PHM containment.