Fig. 1From: A cold high-pressure system over North China hinders the southward migration of Mythimna separata in autumnMap of the study area in China. Twenty searchlight traps were set up in 2014, ten of them were located in the overwintering area of M. separata (red points, to the south of 33° N), and other ten were located in the summer breeding area of this pest (blue points)Back to article page