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Behavior and circadian rhythm of emergence, copulation and oviposition in the oriental tobacco budworm, Heliothis assulta guenee  [1988]

Cho, J.R. Boo, K.S. (Seoul National Univ., Suwon (Korea R.). Dept. of Agricultural Biology)

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Abstract
The behavior and circadian rhythm of emergence, copulation and ovipostion in the Oriental Tobacco budworm (Heliothis assulta Guenee) were studied to obtain the following results. More than three quarters of adults emerged within 3 hours after the light-off. It took about 33 min for an adult to expand and tan its wings after emergence. Adult male showed a sequential pattern of mating behavior, such as antennal movement, wing elevation and vibration, extension of hairpencils, and tapping of female ovipositor leading to a copulation. However, adult female revealed a rather simple behavior, such as protraction and retraction of her terminal abdomen and vibration of wings. All of the mating took place during the early part of the scotophase, with the peak from 1 hr to 2 hrs after the light-off. But the mating peak in virgin females tended to advance with age. Adult females showed the highest rate of mating among 24 hr-olds and the rate declined with age. The rate of first matings in males gave a very similar pattern to that of females. The duration of copulation was 77+-14 min. Oviposition occurred throughout the entire scotophase, with the peak during the first 2 hrs. The most number of eggs deposited daily was seen on the 3rd day after the mating. Mating rate, number of eggs laid and longevity were compared under different sex ratio. Unmated adults lived longer than mated adults
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Other subjects

  • copula
  • ritmos biologicos
  • proportion males femelles
  • rythme biologique
  • temps
  • oviposicion/ comportamiento
  • copulation
  • longevite
  • tiempo
  • heliothis
  • proporcion de los sexos
  • oviposition/ comportement
  • longevidad

From the journal

Korean Journal of Applied Entomology (Korea R.)

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Other information

Language : English

Type : Summary

In AGRIS since : 1990

Volume : 27

Issue : 2

Start Page : 103

End Page : 110

All titles :

" Behavior and circadian rhythm of emergence, copulation and oviposition in the oriental tobacco budworm, Heliothis assulta guenee "