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[Environmental pollutants affecting fodders]. [Arabic]
1994
Gamal EL Dim A. | Ahmed E. | Nasrat S.
[Role of pesticides in controlling tomato pests in normal and sustainable agriculture at Fayoum governorate [Egypt]]. [Arabic]
1994
Zidan Z.H. | Afifi F.A. | Sobeiha A.K. | El Hamaky M.A. | Moawad A.G.
Effect of gibberellic acid on the persistance of certain pesticides onion grape fruits
2010
Ahmed, N.S. | Zidan, Z.H. | El-Sayed, W. | Abdel-Hamid, R.M.
Recommended application was done by spray regime for two pesticides, namely diniconazole, fenitrothion and a plant growth regulator (gibberellic acid) and their mixtures. Their residues were determined after different successive treatments in and on grape fruits in two consecutive years. The initial deposits of the fungicide diniconazole when used alone were 0.49 and 0.50 ppm for 2006 and 2007, respectively. While the initial deposits of fenitrothion reached to 11.35 and 11.19 ppm for the same interval, respectively. Initial deposits of the plant growth regulator gibberellic acid were 30.52 and 30.42 ppm for the same period, respectively. After mixing the tested pesticides and the plant growth regulator, the initial deposits loss reached 38.77 and 42.0 % for diniconazole, 43.08 and 48.16 % for fenitrothion and 6.88 and 7.00 % for gibberellic acid for the same seasons, respectively. A significant degradation was recorded with the mixture of the two tested pesticides and plant growth regulator compared with that occurred when pesticide was used alone at' the two studied seasons.
Показать больше [+] Меньше [-]PESTICIDE PRACTICES IN SOME EGYPTIAN EXPORTATION FARMS
2009
A.K Sobeiha | M.I. Abdel-Megeed | S.M.A Dahroug | O.M . Eklo | A. Hanafi
Information related to pesticide practices in green beans and strawberry fields in some selected exportation farms in Egypt was obtained through questionnaire forms. Such forms were randomly distributed among different target exporters at Giza, Ismaellia, Sharkia, Behirah and Alfayoum governorates. Questionnaire outputs indicated that the percent of the rejected export by importers due to high levels of pesticide residues reached 11.11 and 7.69% in green beans and strawberry respectively. The recommended rates of the used pesticides established by the Ministry of Agriculture and/or EU guidelines were followed by 86.67 and 69.23% of these vegetables growers, respectively. Questionnaire outputs indicated that the percent of exporters who were repeating the application of all or each pesticide during the same season of green beans and strawberry reached 48.89 and 42.31%, respectively. Furthermore, 15.56 and 7.69% of growers followed the recommended Pre Harvest interval (PHI) for each pesticide used in green beans and strawberry. On the other hand, no storage period was followed by 40 and 76.92% of the exporters for green beans and strawberry, respectively. Concerning the transportation conditions data showed that 55.56 and 88.46% of the exporters used cooling trucks with green beans and strawberry, respectively.
Показать больше [+] Меньше [-]Effect of treatment on the nutritive value and residues of some synthetic pesticides in fresh bolti fish
2010
Ahmed, N.S. | El-Saad, El.O.
Fresh Bolti -fish (Tilpia nilotica) collected randomly from 9 different markets in Ismailia Governorate for evaluation the effect of grilled fish by the method used in grillrooms and houses on the concentration of pesticide residues found and the nutritive value. Results revealed that decrease in the estimated parameters i.e. moisture, crude protein, fat and ash by grilling, this decrease were 6.07, 2.63, 4.07 and 1.56%, respectively. On the contrary, carbohydrates behaved another behavior that there was an obvious increase ranged from 1.98% to 2.92%. Fresh and grilled fish were analyzed to detect 12 organochlorine (OC) and 7 synthetic pyrethroid (SP) pesticides with a mean level on a lipid basis. Gas Liquid Chromatography equipped with Electron Capture Detector GC-ECD was used to detect the contamination in the samples. The results showed that p,p'-DDE isomer was dominated over the other isomers in all analyzed fish samples, followed by q-isomer of hexachlorocyclohexane. The concentrations of OC residues were higher than SP pesticides in all fish muscles. Also, the fresh fish muscle recorded higher concentrations of the evaluated pesticides than the grilled one.
Показать больше [+] Меньше [-]Effect of certain technological processes in elimination of some insecticides residues from contaminated vegetables
1996
Abd-El-Daim, Y.A. | Zidan, Z.H. | Mohamed, K.A. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture)
[Environmental pollutants affecting fodders]
1994
Gamal-EL-Dim, A. | Ahmed, E. (Ministry of Agriculture, Cairo (Egypt). Agriculture Extension and Rural Development Research Inst.) | Nasrat, S.
[Role of pesticides in controlling tomato pests in normal and sustainable agriculture at Fayoum governorate [Egypt]]
1994
Zidan, Z.H. | Afifi, F.A. | Sobeiha, A.K. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture) | El-Hamaky, M.A. | Moawad, A.G.
Cytotoxic evaluation of deltamethrin and permethrin pyrethroids by in vitro alternative methods using CHO-KI cell line
2001
Bayoumi, A.E. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture)
esidues Malathion and Pirimiphos-Methyl insecticides on some medicinal plants and their elimination through technological processes
2000
Zidan, Z.H. | Mohamed, K.A. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture)Hashim, E.F.