1. Biochemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia, Tel.
2. Agricultural Research Center, Pesticides Residue and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Giza 12618, Egypt
3. Faculty of Agriculture, Department of Plant Protection, Ain Shams University, Kalubia, Egypt
4. Agriculture Research Center, Bioassay Department, Pesticide Central Laboratory, Giza 12618, Egypt
5. Department of Botany and Microbiology, Collage of Science, King Saud University, P.O. Box 2455, Riyadh 11451 Kingdom of Saudi Arabia