الفهرس | Only 14 pages are availabe for public view |
Abstract The current study conducted to investigate the entomofauna associated with faba bean, Vicia faba L. in El-Kharga Oasis, New Valley Governorate. Furthermore, recycle the naturally occurring plant water hyacinth, Eichhornia crassipes (Mart.) as a new eco-friendly insecticide. The toxicity of the tested plant extracts carried out on the black cutworm, Agrotis ipsilon (Huf.) and the cowpea aphid, Aphis craccivora Koch. while the biological and biochemical aspects were studied on A. ipsilon only. Then, the safety assessment of test plant extracts toward albino rats to indicate the safety of plant on the mammals. The results showed that the most effective plant extracts was AF extract showed a great percentages of mortality, pupation inhibition, adult emergence and malformations. In addition, the present findings showed a wide variety of biochemical changes in total metabolites and enzymes of 2nd instar larva tissues and 6th instar larvae hemolymph. Moreover, in electrophoresis protein and enzymes patterns, some bands were missed or expressed with tested plant extracts. The effect of promising extracts showed the safety of the promising extracts of water hyacinth toward mammals. Key words: El-Kharga Oasis, Agrotis ipsilon (Huf.), Aphis craccivora Koch., Eichhornia crassipes (Mart.) extracts, Biological studies, Biochemical parameters, Safety assessment. |