Regional ecological control of Spodoptera frugiperda in Northwest Yunnan.
Regional prevention and control refers to the deployment of prevention and control of Spodoptera frugiperda at regional level. Yunnan Province is a serious disaster area of S. frugiperda and also the bridgehead for the migration and expansion of the alien pest to the inland areas of China. The regional prevention and control of S. frugiperda has realistic and overall guiding significance for solving the problem of large-scale damage caused by S. frugiperda in Yunnan Province. The concept of regional ecological prevention and control was put forward. Northwestern Yunnan, as a regional control sample of S. frugiperda, was divided into five ecological prevention and control areas based on the principles and methods of landscape ecology. By combining the ecological environment conditions of Northwestern Yunnan with the occurrence regularity of the S. frugiperda, the ideas and principles of regional ecological prevention and control were discussed to provide a new idea for S. frugiperda control.