In order to identify the difference of the male and female pupae weight of geographical and laboratory population of Asian corn borer, Ostrinia furnaealis Guenee (Lepidoptera: Pyralidae), a study on the pupae weight of the geographical and laboratory population of male and female pupae of Asian corn borer were conducted. Results showed that there were significant differences in different geographical population collected from Zhaotong, Xuanwei and Yuxi city, Huize, Xundain, Jianshui, and Longchuan county in Yunnan Province. The female pupae ...