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Journal of Arthropod-Borne Diseases، جلد ۱۹، شماره ۳، صفحات ۱۸۴۴-۱۸۴۴
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عنوان انگلیسی Chemical Composition and Control Potential of Melia azedarach Extracts Against Culex pipiens
چکیده انگلیسی مقاله Background: Culex pipiens (Diptera: Culicidae) poses a persistent global health challenge. The overuse of synthetic insecticides has led to resistance and environmental damage, underscoring the need for sustainable alternatives. Melia azedarach (Meliaceae) represents a promising source of bioactive com­pounds. This study aimed to comprehensively evaluate the potential of alkaloid extracts from M. azedarach against all life stages of Cx. pipiens and to characterize their phytochemical composition. Methods: Crude alkaloid extracts were prepared from both plant parts. Ovicidal, larvicidal, pupicidal and adult repellent effects, were assessed through laborato­ry bioassays. The chemical profile of the extracts was determined using Gas Chromatography-Mass Spectrometry (GC-MS). Results: Bioassays demonstrated significant ovicidal activity, with 100% egg mortality at 1% (w/v) concentration. Lar­vicidal activity was also notable at 1% (w/v). The fruit extract caused 100% mortality across the first three larval instars, while the leaf extract caused 100% mortality in the first two instars and 96.6% in the third. In the fourth instar, larvae showed 93.33 and 91.67% mortality with the fruit and leaf extracts, respectively. The extracts exhibited significant repellent effects, with rates of 63.00% and 60.00% at 1% (w/v) and consistently negative equilibrium ratios. GC-MS analysis showed the fruit extract was rich in insecticidal fatty acid esters, while the leaf extract contained repellent terpenoids like Piperitenone Oxide. Linoleic acid was a major shared compound, potentially underpinning the broad-stage efficacy. Conclusion: These findings support the use of M. azedarach extracts as a promising, locally accessible and environ­mentally responsible strategy for integrated Cx. pipiens mosquito management.
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نویسندگان مقاله | Wail Hassan
Razi UniveDepartment of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iranrsity


| Abbas Ali Zamani
Department of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iran


| Yousif Rashid
Department of Biological Control, Al-Mussaib Technical College, Al Furat Al Asat Technical University, Iraq


| Arezoo Jamshidi
Department of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iran
نشانی اینترنتی https://jad.tums.ac.ir/index.php/jad/article/view/1844
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