Repellent Activity of Origanum syriacum (Lamiaceae), Pergularia tomentosa (Apocynaceae), and Senna italica (Fabaceae) Leaves Extracts against Culex pipiens L. (Diptera: Culicidae)
Shahat, M., El-sheikh, T., ammad, K., Hasaballah, A., Shehata, A. (2020). Repellent Activity of Origanum syriacum (Lamiaceae), Pergularia tomentosa (Apocynaceae), and Senna italica (Fabaceae) Leaves Extracts against Culex pipiens L. (Diptera: Culicidae). EKB Journal Management System, 12(2), 61-67. doi: 10.21608/eajbse.2020.128497
Mohamed A.M. Shahat; Tarek M.Y. El-sheikh; Kotb M. ammad; Ahmed Hasaballah; Ahmed Z.I. Shehata. "Repellent Activity of Origanum syriacum (Lamiaceae), Pergularia tomentosa (Apocynaceae), and Senna italica (Fabaceae) Leaves Extracts against Culex pipiens L. (Diptera: Culicidae)". EKB Journal Management System, 12, 2, 2020, 61-67. doi: 10.21608/eajbse.2020.128497
Shahat, M., El-sheikh, T., ammad, K., Hasaballah, A., Shehata, A. (2020). 'Repellent Activity of Origanum syriacum (Lamiaceae), Pergularia tomentosa (Apocynaceae), and Senna italica (Fabaceae) Leaves Extracts against Culex pipiens L. (Diptera: Culicidae)', EKB Journal Management System, 12(2), pp. 61-67. doi: 10.21608/eajbse.2020.128497
Shahat, M., El-sheikh, T., ammad, K., Hasaballah, A., Shehata, A. Repellent Activity of Origanum syriacum (Lamiaceae), Pergularia tomentosa (Apocynaceae), and Senna italica (Fabaceae) Leaves Extracts against Culex pipiens L. (Diptera: Culicidae). EKB Journal Management System, 2020; 12(2): 61-67. doi: 10.21608/eajbse.2020.128497

Repellent Activity of Origanum syriacum (Lamiaceae), Pergularia tomentosa (Apocynaceae), and Senna italica (Fabaceae) Leaves Extracts against Culex pipiens L. (Diptera: Culicidae)

Egyptian Academic Journal of Biological Sciences, E. Medical Entomology & Parasitology
Article 7, Volume 12, Issue 2, December 2020, Page 61-67  XML PDF (554.97 K)
Document Type: Original Article
DOI: 10.21608/eajbse.2020.128497
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Authors
Mohamed A.M. Shahat1; Tarek M.Y. El-sheikh1; Kotb M. ammad1; Ahmed Hasaballah2; Ahmed Z.I. Shehata2
1Department of Zoology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11651, Egypt.
2Department of Zoology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11651, Egypt
Abstract
The present study aimed at investigating the repellent activity of methanol, ethyl acetate, chlorobenzene and hexane extracts from leaves of Origanum syriacum, Pergularia tomentosa and Senna italicaagainst Culex pipiens starved females. Three doses were used (0.83, 1.67 and 3.33 mg/cm2) to test the repellent activity of selected extracts. The obtained results revealed that all tested extracts evoked a variable degree of repellent activity against C. pipiens starved females depending on the solvent used in the extraction and the dose. Potent repellent activity (91.53%) was recorded by hexane extract from leaves of O. syriacum at the dose of 3.33 mg/cm2, while, the lowest repellent activity (22.07%) was recorded by methanol extract from leaves of O. syriacum at the dose of 0.83 mg/cm2, respectively. According to RD50and RD90 values, hexane extraction from leaves of all tested plants was more effective against C. pipiens starved females than chlorobenzene, ethyl acetate and methanol extractions. Also, methanol, ethyl acetate, chlorobenzene and hexane extracts from leaves of O. syriacum were more effective against C. pipiens starved females than those of S. italica and P. tomentosa.
Keywords
Repellent; Culex pipiens; Origanum syriacum; Pergularia tomentosa; Senna italica
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