›› 1998, Vol. 41 ›› Issue (1): 1-7.

• RESEARCH PAPERS •     Next Articles

ELECTROANTENNOGRAM OF ORIENTAL ARMYWORM MYTHIMNA SEPARATA WALKER EXPOSED TO SEX PHEROMONE

Wang Xinwen Liu Mengying Wu Caihong   

  • Online:1998-02-20 Published:1998-02-20

Abstract: Electroantennograms (EAGs) were obtained for Mythimna separataWalker exposed to the compounds (Z)-1 1-hexadecenal (Z11-16: Ald), (Z)-9-hexadecenal (Z9-16 :Aid) and hexadecenal (16:Ald) as well as the female gland extracts. The EAG doseresponse curves were significantly different among the three compounds, it indicatedthat male moths had the highest peak response to Zl1-16 :Ald, and very low response to16:Aid. The male response profiles to the female gland extracts were increased by increasing the source concentration. And the maximum EAG response was consistent with the female calling period. A comparative study of the EAG responses between Mythimnaseparata and Helicoverpa assulta revealed that a minor sex pheromone component, zg16:Ald, probably existed in Mythirana separata female gland extracts.

Key words: Mythirnna separata, electroantennogram, sex pheromone