On August 6th, Xingeng Wang, a senior researcher at the Agricultural Research Division of the US Department of Agriculture, presented his team's research progress on the investigation of natural enemies, origin exploration, epidemic assessment, pre-release evaluation, large-scale propagation, and field release colonization of the major invasive pest Drosophila melanogaster in berries to the teachers and students of the Key Laboratory with the title Biological control of Spotted wing Drosophila.