Biogenic amines regulate the behavior and physiology of animals, including the postmating behavior of females in some insect species. In the present study, biogenic amines were injected into the abdomens of Trigonotylus caelestialium females, and the effects on oviposition behavior were examined. Octopamine solution increased the number of eggs laid by females, and the effect was dose-dependent and repeatable. These results suggest that octopamine plays a role in the oviposition process after mating.
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Vol. 123 • No. 2