Abdel-Salam, A., El-Serafi, H., Mohamed, N., Twafik, W. (2014). COLD STORAGE OF THE EGG PARASITOID, Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) AND ITS EFFECT ON SOME BIOLOGICAL CHARACTERISTICS.. Journal of Plant Protection and Pathology, 5(2), 215-223. doi: 10.21608/jppp.2014.87897
A. H. Abdel-Salam; Hala. A. K. El-Serafi; Nadia E. Mohamed; Walaa, A. Twafik. "COLD STORAGE OF THE EGG PARASITOID, Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) AND ITS EFFECT ON SOME BIOLOGICAL CHARACTERISTICS.". Journal of Plant Protection and Pathology, 5, 2, 2014, 215-223. doi: 10.21608/jppp.2014.87897
Abdel-Salam, A., El-Serafi, H., Mohamed, N., Twafik, W. (2014). 'COLD STORAGE OF THE EGG PARASITOID, Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) AND ITS EFFECT ON SOME BIOLOGICAL CHARACTERISTICS.', Journal of Plant Protection and Pathology, 5(2), pp. 215-223. doi: 10.21608/jppp.2014.87897
Abdel-Salam, A., El-Serafi, H., Mohamed, N., Twafik, W. COLD STORAGE OF THE EGG PARASITOID, Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) AND ITS EFFECT ON SOME BIOLOGICAL CHARACTERISTICS.. Journal of Plant Protection and Pathology, 2014; 5(2): 215-223. doi: 10.21608/jppp.2014.87897
COLD STORAGE OF THE EGG PARASITOID, Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) AND ITS EFFECT ON SOME BIOLOGICAL CHARACTERISTICS.
2Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura, Egypt.
3Plant Protection Research Institute, Agricultural Research Center, Ministry of Agriculture.
Abstract
Nezara viridula (L.) egg masses were parasitized by Trissolcus basalis (Wollaston) at 28±1oC then the parasitized egg masses were stored at 4, 8, 12, 16 and 20oC for differentperiods of storage. Percentage of parasitized eggs, successful parasitism and sex ratio of T. basalis were evaluated.
Results of this study showed that N. viridula parasitized eggs could be stored for four weeks at 16 and 20±1oC but only three weeks storage was possible at 12±1oC. Even though there were significant differences between percentage of parasitized eggs, successful parasitism and sex ratio at different storage temperature and different storage periods. High mean emergence showed at 20±oC, ranging from 78.5% to 92.5%, while the lathe number of emergence was at 12oC. Meanwhile, successful parasitism increased with the increase of storage temperature. While, it will be decreased with the increased in storage periods.
Data also revealed that average of egg-larval stages, pupal stage and total developmental time were increased with the increase of storage periods, While they will be decreased with the increased in storage temperature.
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