Reproductive biology and feeding consumption of Oriwi albidipennls (Reuter) (Hemiptera: Anthocoridae) reared on four different preys [electronic resource].

Includes references.

The reproductive biology and feeding consumption of Orius albidipenlJis Reuter fed on eggs of Anagasta kuehniella Zell., Tetranychus IIrlicae Koch., Trialeurodes vaporariol1lm Westwood and nymphs of Gyniakolhrips ficorurn Marchal were investigated under 26±loC, 60±]0 % RH and 16:8 un photoperiod in laboratory. Results indicated that type of prey had profound effect on all investigated bioparameters. The highest survival rate of 87.14 % was recorded when nymphs fed on A. kuehlliella eggs, meanwhile the lowest one (51.93 %) was observed for those fed on T. vaporariol1l111 eggs. On the contrary, the shortest nymphal period (10.60 days) was recorded for nymphs fed on A. kuehmiella eggs, while the longest one (15.99 days) was for those fed on T. urlicae eggs. For feeding capacity during the nymphal period, the greatest number of consumed preys was 209.46 eggs of T. urticae. O. albidipenllis females showed the highest fecundity (148.00 eggs/female) when fed on A. Imehniella eggs, and the lowest (54.42 eggs/female) when fed on T. vaporariorum. Feeding on G. ficorum nymphs significantly extended the life span of O. albidipenllis females and males over that of other preys. For adult feeding consumption. females consumed more preys than males. The greatest means of consumed preys for adult females and males were 127.50 and 42.57 T. urticae eggs, respectively. So, A. kuehniella eggs seem to be most suitable alternative prey for mass rearing of O. albidipennis.

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