الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 176 |  |  |
| | | from | 176 | | |
Abstract
In the present study, twelve material (two essential oils geranium and basil , their nanoemulsions , EO-NPs of the two oils loaded in poly ethylen glycol 6000 PEG, silica nanoparticles(SNP), nano SIO2 water suspension, lemon grass powder, garlic powder finally two of pesticides chloropyrifos 2% and deltamethrin 0.5%) were examine their insecticidal against two of the stored product insects Tribolium castaneum (Coleoptera: Tenebrionidae) and Rhyzopertha dominica (Coleoptera:Bostrichidae).Results indicated that pesticides were the most effective materials followed by SNP, EO-NPs and nanoemulsion of essential oils, and nano SIO2 water suspension while natural powder were the least effective compounds against all stages of tested insects. Moreover their residual effect lasts for 90 days of storage. For the risk of exposure of both pesticides and nanomaterials, health hazards and safety considerations should be examined. Male albino rats were dietary exposed to LC90 value of the two pesticides, nanosilica and EO-NPs of the geranium oil for 30 days followed by 10 days as recovery period to examine the changes in both liver and kidney function which consider markers in changes of serum, ALT, AST, ALP , T.P , Albumin , Uric Acid, Creatinin and Acetylcholine-esterase. Also Histological analysis revealed the effects of tested materials on liver and kidney functions after 30 days of exposure while the histological analysis after 10 days feeding on normal diet post exposure period revealed that, the serum enzymatic level showed decreasing than the treated period.