The document summarizes an experiment to test the efficiency of lemon grass and kaffir lime extracts at eliminating Rhyzopertha dominica weevils. It describes 3 steps: 1) preparing Thai herbs and weevils, 2) extracting the essential oils from the herbs via steam distillation, and 3) testing the extracts at 5 concentrations by counting dead weevils over time and comparing to a distilled water control. The goal was to determine if the Thai herb extracts could effectively eliminate the weevil pests.