关键词: 丁布, 拒食作用, 生长发育, 亚洲玉米螟, 玉米

Abstract: The extracted DIMBOA was used to determine its biological activities on the Asian corn borer (ACB), Ostrinia furnscalis (Guenée). The antifeedant property of DIMBOA on ACB was confirmed by the methods of leaf disc (selected and unselected) and feeding-weighing. Antifeeding ratio in unselected experiment was lower than that in selected one. Our results showed that DIMBOA had some effect on embryonic development of ACB and significantly affected the growth and development of ACB's larvae. The larvae's growth and development were delayed, mortality increased, weight of both the larvae and the pupae decreased, sex ratio(f/m) decreased, and deformed pupae appeared after the treatment with DIMBOA. Most ACB holes in plants are at the lower parts of internodes, where DIMBOA concentrations are higher. Further researches on this phenomenum are needed.

Key words: DIMBOA, antifeedant property, growth and development, Ostrinia furnacalis (Guenée), Zea mays L