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Relationships among pheromone titre, calling and age in the omnivorous leafroller moth (Platynota stultana)



Relationships among pheromone titre, calling and age in the omnivorous leafroller moth (Platynota stultana)



Journal of Insect Physiology 2811: 925-933



Temperature modified the expression of female calling in P. stultana. Absolute temperature levels and not necessarily a decrease in temperature appear to modulate the timing of calling by delimiting a specific time interval for calling at each temperature. Calling began earlier in the photoperiod at lower temperatures than at higher temperatures. As females aged they initiated calling at an earlier time. Pheromone production (at 24.degree. C) was rhythmical with maximal titer being reached near to the onset of the calling period at 14.degree. C and .apprx. 5 h prior to the onset of calling at 24.degree. C. Females appear capable of emitting pheromone at an appropriate rate any time during calling intervals delimited by temperatures between 14 and 24.degree. C. Pheromone titer appears to reflect a time-dependent readiness to respond to a decrease in temperature.

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Accession: 021664905

Download citation: RISBibTeXText

DOI: 10.1016/0022-1910(82)90108-1


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