Sex pheromone and related compounds in the Ishigaki and Okinawa strains of the tussock moth Orgyia postica (Walker) (Lepidoptera: Lymantriidae).
Two distinct electroantennographycally active (EAG-active) components, A and B, and a weakly active component C were found in a solvent extract from virgin females of the Ishigaki strain of the tussock moth, Orgyia postica (Walker). Components A, B, and C were found in the extract of the females at 4.0, 0.5, and 4.0 ng/female respectively. Components A, B, and C were identified as (6Z,9Z,11S,12S)-11,12-epoxyhenicosa-6,9-diene [(11S,12S)-1: posticlure], (6Z)-henicos-6-en-11-one (2), and (6Z,9Z)-henicosa-6,9-diene (3), respectively. Component B was absent in the extract from the Okinawa strain, in which components A and C were present at 2.0 and 1.5 ng/female respectively. (11S,12S)-1 and the racemic mixture showed attractiveness for both the Okinawa and Ishigaki strains, whereas (11R,12R)-1 did not. The addition of 2 significantly reduced the trap catches with (11S,12S)-1 on the Okinawa strain which lacked 2, while there was no significant inhibitory effect on the Ishigaki strain. The addition of 3 to (11S,12S)-1 did not significantly affect trap catches at Ishigaki or Okinawa. This confirmed that the attractant pheromone of O. postica of the Ishigaki strain is also (11S,12S)-1.
Wakamura
Sadao
S
Laboratory of Insect Behavior, National Institute of Agrobiological Sciences, Tsukuba. swaka@affrc.go.jp
Arakaki
Norio
N
Yamamoto
Masanobu
M
Hiradate
Syuntaro
S
Yasui
Hiroe
H
Kinjo
Kunio
K
Yasuda
Tetsuya
T
Yamazawa
Hiroyuki
H
Ando
Tetsu
T
D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D005260:Female; D007564:Japan; D008297:Male; D009036:Moths / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D012724:Sex Attractants / Q000737:chemistry* / Q000502:physiology
D012724:Sex Attractants