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Volatiles induced by the larvae of the Asian corn borer （Ostrinia furnacalis） in maize plants affect behavior of conspecific larvae and female adults

引用

Insect Science 2009年第4期16卷 311-320页

作者： Cui-Hong Huang Feng-Ming Yan John A. Byers Rong-Jiang Wang Chong-Ren Xu College of Life Sciences Peking University Beijing College of Plant Protection Henan Agricultural University Zhengzhou China U.S. Arid-Land Agricultural Research Center USDA-ARS 21881 North Cardon Lane Maricopa Arizona 85238 USA

Effects of maize （Zea mays L.） volatiles induced by larvae of the Asian corn borer, Ostriniafurnacalis （Guenee）, on the orientation behaviors of Asian corn borer larvae and oviposition of the females were investigated. Nineteen volatile chemicals, with terpenes being the major components, were identified from maize plants attacked by third instar Asian corn borer larvae. Coupled gas chromatographic-electroantennographic detection （GC-EAD） analyses revealed some electroantennographic differences between female and male Asian corn borer antennae in response to larvae-induced maize volatiles; female responded to （E）-2-hexenal, nonanal, （Z）-3-hexen-l-ol and three unknown compounds while the male only responded to （E）-2-hexenal, nonanal and one unknown compound. In laboratory orientation bioassays, Asian corn borer neonate larvae were attracted to extracts collected from Asian corn borer-damaged plants as well as to synthetic farnesene, but were repelled by （Z）-3-hexen- 1 -ol. In laboratory oviposition bioassays, gravid females laid fewer eggs on plants damaged by larvae than on mechanically damaged plants or undamaged plants. Adult Asian corn borer females deposited fewer eggs on wax paper treated with （E）-2-hexenal or （Z）-3-hexen-l-ol than on wax paper treated with hexane （control）. The results suggest that Asian corn borer can affect the behaviors of conspecific larvae and adults by changing host plant volatiles.

关键词： behaviors conspecific adults and larvae induced volatiles Ostrinia furnacalis (Guenee) Zea mays L.

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