ISSN:
1573-1561
Keywords:
Sex pheromone
;
attractant
;
Thysanoplusia intermixta
;
Thysanoplusia orichalcea
;
Lepidoptera
;
Noctuidae
;
Plusiinae
;
(5E, 7Z)-5,7-dodecadienyl acetate
;
(Z)-7-dodecenyl acetate
;
reproductive isolation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Thysanoplusia intermixta, which inhabits the temperate zone in Japan, is a defoliator of plants in the family Compositae, Apiaceae, and others. By GC-MS analysis, (Z)-7-dodecenyl acetate, (Z)-7-dodecen-l-ol, (5E, 7Z)-5,7-dodecadienyl acetate and (5E, 7Z)-5,7-dodecadien-l-ol were identified from a pheromone gland extract of the virgin females in a ratio of 18:3:100:13. A lure baited only with the major diene acetate could attract male moths of T. intermixta in the field. Other minor components had a synergistic effect on the attraction of the diene acetate. The same four components were included in a very different ratio of 100:6:11:1 in the gland extract of Thysanoplusia orichalcea, a closely related subtropical species. The monoene and diene acetates are essential for field attraction, and a 100:11 mixture is an optimum lure for T. orichalcea males. However, this mixture, including the diene acetate as a minor component, captured very few T. intermixta males, suggesting the possibility that these two Thysanoplusia species are reproductively isolated from each other by pheromonal communication.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022310721190
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