TOXICOLOGICAL STUDIES ON THE LONG TERM EFFECTS OF HEAVY METALS (PB AND CD) TREATED SOIL ON THE DEVELOPMENT AND REPRODUCTIVE CAPACITY OF THE DESERT LOCUST SCHISTOCERCA GREGA RIA (FORSKAL.). | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 8, Volume 30, Issue 10, October 2005, Pages 6443-6451 PDF (2.58 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2005.238252 | ||
| Authors | ||
| N. M. Ibrahim; K. S. Othman; Rodina A. Hassan; Yasmin E. Abdelmobdy | ||
| Department of Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt. | ||
| Abstract | ||
| Influence of heavy metals (Pb and Cd) treated soil on the development and reproductive capacity of S. gregaria was studied. Oviposition rate was not affected at any soil concentrations of the metals 50-500 Pb(N02)3 and 10-100ppm CdCI2 used, laying females were evidently unable to distinguish between treated and untreated soil. The hatchability rate of the egg laid in heavy metals treated soil was reduced compared to eggs laid in untreated soil. High concentrations of heavy metals caused an increase in the duration of immature stages resulting from eggs laid in treated soil. Emerged adults were lighter and their life span were also shorter as compared with those in control. Adult emerged from egg laid in treated soil revealed a higher accumulation of the Pb and Cd compared to the untreated control. It could be stated that the accumulation of metals content in the different body parts and most of the found in the testes, was affected by the level and the type of metals in the soil. | ||
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