Abstract:
The fall armyworm (FAW),
Spodoptera frugiperda (Lepidotera: Noctuidae), is a recently arrived invasive pest in China where it threaten maize. The border area of Yunnan Province is the gateway by which FAW invaded China from the Indochina Peninsula, and it is also an important corridor for the migration and spread of FAW to the interior of China. There are a series of mountain ranges in Yunnan, among which the highest mountain range represented by the Ailao Mountains divides Yunnan into two parts. The Indochina border of Yunnan is mainly distributed to the west of the Ailao Mountains. Using the natural barrier effect of the Ailao Mountains as a control barrier for FAW movement is of strategic significance for the overall prevention and control of FAW in China. Considering FAW spread prevention and control in border areas and the whole of Yunnan, this paper reviews several key factors, such as the biogeographical characteristics of Yunnan, regulatory of FAW, and corn planting practices, and then proposes the concept of a control barrier for FAW. The “Two belt and one area” concept for regional FAW prevention and control in Yunnan is described in detail. The FAW control measures are discussed include pesticides, pheromone trapping, crop rotation and alternative crop. This review provides the theoretical basis and framework for FAW control in the border region of Yunnan Province.