The biological activities of the Egyptian geograpffic population of the predatory aphid midge,Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae) [electronic resource].
Language: English Summary language: Arabic Description: p.145-164Other title:- النشاطات البيولوجية للسلالة الجغرافية المصرية للهاموش المفترس Aphidoletes aphidimyza (عائلة Cecidomyiidae : رتبة ذات الجناحين) [Added title page title]
- Bulletin of Faculty of Agriculture. Cairo University, 2004 v. 55 (1) [electronic resource].
Includes reference.
Biological studies of the predatory midge, Aphidoletes aphidimyza were carried out combining two variables: i.e., temperature and prey species. All assays were run at 16 L: 8 D photoperiod and 60% R.H. Feeding on the cereal aphid, Rhopalosiphum padi was combined with three different temperatures ,20° C, 25° C and 30° C, whereas assays using A. gossypii and A:¬craccivora were done at 25° C. Results showed that the cereal aphid, R. padi induced low larval mortality and high female fecundity. The temperature of 25° C was selected for rearing this predator because it was associated with high hatchability, low larval mortality, high adult emergence rate and high female oviposition. The females of A. aphidimyza prefer to lay most of their eggs on the lower surface of the leaves. Moreover, the mean percentage of deposited eggs decreased gradually with decreasing aphid density on the plant.
Summary in Arabic.
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