J. A. Coffelt, L. Sower, K. W. Vick
Aug 1, 1978
Citations
2
Influential Citations
52
Citations
Journal
Environmental Entomology
Abstract
Concentrations of the sex pheromone ( Z,E )-9,12-tetradecadien-1-ol acetate present in superficial rinses of the sex pheromone gland of virgin female Plodia interpunctella (Hubner) at different times during a 14L:10D photoperiod fluctuated at least 10-fold. Maximum quantitites of pheromone, 1–2 ng/female, were obtained during the scotophase when ca. 90% of the females were calling. During the latter 1/2 of the photophase when calling was ca. 60%, less than 0.1 ng/female of the compound was detected. The corresponding alcohol, ( Z,E )-9,12-tetradecadien-1-ol, showed a similar diel periodicity. Concurrent analyses of the pheromone levels in unmated females of Ephestia (= Cadra ) cautella Walker revealed little <2X) variation in the quantity of either of the 2 previously identified components [( Z,E )-9,12-tetradecadien-1-ol acetate and ( Z )-9-tetradecen-1-ol acetate] at different times during the photoperiod. Ca. 46 and 30% of these females called during the scotophase and photophase, respectively.