Beziehungen zwischen dem Bakterium Serratia marcescens (Biz.) und der in den Raupen von Sesamia cretica. Led. (Lep., Tortricidae) sich entwickelnden Schlupfwespe Bracon brevicornis Wesm. (Hym., Braconidae) |
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Authors: | Dr. S. A. Temerak |
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Affiliation: | 1. Insect Biocontrol Unit, College of Agriculture, Assiut-University, Egypt
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Abstract: | Laboratory experiments were undertaken to study the interrelationships which may be detected when rearing the ectoparasitoid,Bracon brevicornis onSesamia cretica larvae after being injected with the bacterial pathogen,Serratia marcescens at five constant temperatures. Many effects detrimental to the parasitoid were found through rearing onSerratia-infected larvae ofSesamia e.g. decreased the deposited eggs especially at 35°C; reduced the formed cocoons and produced adults at all temperatures (15–35°C); and prolonged developmental, repriod especially at 20 or 25°C. Number of infected host larvae which allowed complete successful development for the parasitoid was significantly decreased especially at the extremes of temperatures. |
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