Determination of the Life Cycle of the Olive Fruit Leaf Moth, Palpita unionalis (Lepidoptera:Pyralidae) in the Laboratory
Abstract
Palpita unionalis (Hübner), the olive leaf moth, is one of the most important pests of olive nurseries and olive orchards in Turkey and also in the Mediterrean Basin generally. In this study, P. unionalis was reared at 24 ± 1 °C, 65% RH and 16:8 h L:D in the laboratory on leaves of its natural olive host plant, Oleae europeae cv. ‘Ayvalık’. Eggs were laid individually or in clusters on the underside of the olive leaves, but at random in the adult cages. There were 6 instars based on molts and head capsule measurements. Larval development was completed in an average of 23.35 ± 2.13 d and the survival rate was 60%. Adult longevity averaged 16.0 ± 1.57 d for females and 16.3 ± 1.21 d for males. The mean fecundity was 352 ± 42.9. Developmental period of immature stages, adults’ life span, fecundity and sex ratios were determined in the laboratory.
Palpita unionalis (Hübner), la polilla de la hoja del olivo, es una de las plagas más importantes en los huertos y viveros de olivos. En este estudio, P. unionalis fue criado a 24 ± 1 °C, 65% HR y con un fotoperíodo L:O (luz y oscuridad) de 16:08 horas en el laboratorio sobre hojas de olivo, Olea europea L, en su planta hospedera natural. Los huevos fueron puestos por los adultos en las jaulas individualmente o en grupos en el envés de las hojas de olivo. Hubo 6 estadios basado sobre las mudas y las medidas de la cápsula cefálica. El desarrollo de la larvas se completó en un promedio de 23.35 ± 2.13 días y la tasa de supervivencia fue del 60%. El promedio para la longevidad de los adultos fue 16.0 ± 1.57 dias para las hembras y 16.3 ± 1.21 días para los machos. El promedio del número de huevos puestos por las hembras fue de 352 ± 42.9. Las polillas han sido criadas en el laboratorio continuamente durante 2 años en las hojas de olivo.
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