ISSN:
1573-1561
Keywords:
Corn earworm
;
Heliothis zea
;
Lepidoptera
;
Noctuidae
;
pheromone
;
(Z)-11-hexadecen-1-ol
;
laboratory rearing
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Analysis of ovipositor extracts of lab-reared (〉 120 generations) and wildHeliothis zea indicated small but significant differences in the percent composition of the four aldehyde components of the sex pheromone. (Z)-11-hexadecen-1-ol (Z11–16∶OH) was present in both populations and amounted to only 2.8% of the total pheromone. There was no significant difference in four of the six behavioral categories between lab-reared and wild males exposed to the four-component sex pheromone in the flight tunnel. Ninety and 84% males flew to the pheromone source, respectively. However, with the addition ofZ11–16∶OH to the pheromone blend, none of the wild males flew upwind to the stimulus source, whereas 36% of the lab-reared males completed the flight. It is suggested that prolonged inbreeding in closed quarters rendered these males less discriminating to qualitative differences in a pheromone blend.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01014828
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