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Dr. Naglaa Fekry Abd El-Hamed :: Publications:

Title:
Orius albidipennis ( Hemiptera : Anthocoridae ) adults and nymphal voracity on different prey species in relation to biology of the predator
Authors: Naglaa F. Abdel – Hameid
Year: 2018
Keywords: Orius albidipennis, Biology, Schizaphis graminum, Aphis craccivora, Spodoptera litoralis .
Journal: Annals of Agric. Sci., Moshtohor ISSN 1110-0419
Volume: 56
Issue: 1
Pages: 107 – 112
Publisher: Not Available
Local/International: International
Paper Link: Not Available
Full paper Naglaa Fekry Abd El-Hamed_6.pdf
Supplementary materials Not Available
Abstract:

This study aimed to evaluate the effect of three different prey species on some biological aspects of the minute pirate bug Orius albidipennis . The third nymphal instar of two aphid species ; Aphis craccivora and Schizaphis graminum , and also the first instar larvae of Spodoptera litoralis were chosen as preys and offered to nymphs and adults of the predator O. albidipennis under laboratory conditions of at 26 ± 1°C and 60 ± 5% RH. Males lived shorter than females. While, the shortest development period ( 12.00±0.35 days ) was achieved when predatory insect was fed 1st instar larvae of S . litoralis . Feeding on S . litoralis or S. graminum shortened pre-oviposition period and prolonged the oviposition which resulted in a higher rate of fecundity. S . litoralis was the most suitable food source where it caused the highest rate of net reproduction ( 187.60 ±5.51 eggs / female ) . Throughout the whole nymphal stage , a single O. albidipennis is nymphal fed on total number of 243.40±14.90 S. graminum , 211.90±12.95 A . craccivora or 110.70±11.90 individuals of 1st instar larvae of S . litoralis . The mean total number of prey individuals was, significantly, higher in case of S. graminum than A . craccivora. These results should contribute to the development of mass rearing programs for biological control.

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