Garcia, PatríciaTavares, João2010-12-292010-12-291997GARCIA, P. & J. TAVARES, (1997). Biology of Trichogramma cordubensis (Hym., Trichogrammatidae) under different photoperiods. “Boletín de la Asociación Española de Entomología”, Supl. Vol. 21: 17-21.0210-8984http://hdl.handle.net/10400.3/785Proceedings from the 6th European Workshop on Insects Parasitoids, Valencia, 1-4 March 1997.This work was carried out to study the effect of photoperiod on Trichogramma cordubensis Vargas & Cabello biology. T. cordubensis was reared on Ephestia kuehniella Zeller eggs at 20°C and 75±5% of HR. The essay comprised different photophase (L): scotophase (D) combinations thal simulated the day length of summer (16:8), winter (8: 16) and spring or autumn (12:12) seasons in the Azores. Photoperiod did not influence the parasitoid longevity, emergence rate and parasitism. However, it had a significant effect on the parasitoid egg to adult developmental time, the last enlarging with increasing photophase.engBiologyDifferent PhotophaseEphestia kuehniella ZellerSeasons in the AzoresTrichogramma cordubensis Vargas & Cabelloconference object