Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm
The fall armyworm (Spodoptera frugiperda) is a major pest of several crops leading to significant yield losses. Developing effective and eco-friendly pest management strategies against fall armyworm (FAW) is crucial for sustainable agriculture. This study investigates the synthesis and evaluation o...
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AcademicPres
2024-12-01
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| Series: | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
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| Online Access: | https://www.notulaebotanicae.ro/index.php/nbha/article/view/14066 |
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| author | Aqsa NOREEN Mubashar HUSSAIN Muhammad F. MALIK Aniza IFTIKHAR Uswa ZEB Abid FARID Abdullah A. ALARFAJ Mohammad J. ANSARI |
| author_facet | Aqsa NOREEN Mubashar HUSSAIN Muhammad F. MALIK Aniza IFTIKHAR Uswa ZEB Abid FARID Abdullah A. ALARFAJ Mohammad J. ANSARI |
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The fall armyworm (Spodoptera frugiperda) is a major pest of several crops leading to significant yield losses. Developing effective and eco-friendly pest management strategies against fall armyworm (FAW) is crucial for sustainable agriculture. This study investigates the synthesis and evaluation of the insecticidal activity of silver nanoparticles based on an aqueous extract of Moringa oleifera leaves (MOL-AgNPs) against FAW. The synthesized MOL-AgNPs were characterized and confirmed using UV-Vis spectroscopy, Energy Dispersive X-ray Spectroscopy (EDX), Fourier Transform Infrared (FTIR), and Scanning Electron Microscopy (SEM) imaging. Four concentrations (200, 300, 400, and 500 ppm) of MOL-AgNPs and a deionized water as blank control were tested against larval mortality of the last three larval instars of FAW by food dipping method. Results showed different concentrations of MOL-AgNPs exhibited significantly higher larvicidal activity (p<0.05). In the 4th instar, 67.5%, 82.5%, and 95% larval mortality were observed in MOL-AgNPs at 500 ppm after 24, 48, and 72 h of the larval exposure, respectively. Similarly in the 5th instar larvae, 72.5% (24 h), 83.75% (48 h), and 90% (72 h) mortality was observed after larval exposures to maximum concentration (500 ppm) of MOL-AgNPs. The 6th instar larvae showed 52.5% (24 h), 57.5% (48 h), and 85% (72 h) percentage mortality at 500 ppm. The MOL-AgNPs demonstrated high larvicidal activity which increased with the increase in concentrations of MOL-AgNPs and duration of exposure. The concentration levels with increased duration of exposure resulted in higher larval mortalities in all three larval instars. However, a more pronounced impact of larvicidal activity was observed on the 4th and 5th instars as compared to the 6th instar. The mortality rates recorded for both the concentration of the nanoparticles and the duration of exposure highlighted the potential of MOL-AgNPs as an eco-friendly and effective pest management strategy.
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| format | Article |
| id | doaj-art-6cfc91ece20a4e8d9861f03b2ee5edde |
| institution | Kabale University |
| issn | 0255-965X 1842-4309 |
| language | English |
| publishDate | 2024-12-01 |
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| series | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
| spelling | doaj-art-6cfc91ece20a4e8d9861f03b2ee5edde2024-12-20T18:14:18ZengAcademicPresNotulae Botanicae Horti Agrobotanici Cluj-Napoca0255-965X1842-43092024-12-0152410.15835/nbha52414066Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armywormAqsa NOREEN0Mubashar HUSSAIN1Muhammad F. MALIK2Aniza IFTIKHAR3Uswa ZEB4Abid FARID5Abdullah A. ALARFAJ6Mohammad J. ANSARI7University of Gujrat, Department of Zoology, Gujrat, 50700University of Gujrat, Department of Zoology, Gujrat, 50700University of Gujrat, Department of Zoology, Gujrat, 50700University of Gujrat, Department of Zoology, Gujrat, 50700University of Gujrat, Department of Zoology, Gujrat, 50700The University of Haripur, Department of Entomology, Haripur 22620King Saud University, College of Science, Department of Botany and Microbiology, Riyadh 11451Al-waili Foundation of Science, New York The fall armyworm (Spodoptera frugiperda) is a major pest of several crops leading to significant yield losses. Developing effective and eco-friendly pest management strategies against fall armyworm (FAW) is crucial for sustainable agriculture. This study investigates the synthesis and evaluation of the insecticidal activity of silver nanoparticles based on an aqueous extract of Moringa oleifera leaves (MOL-AgNPs) against FAW. The synthesized MOL-AgNPs were characterized and confirmed using UV-Vis spectroscopy, Energy Dispersive X-ray Spectroscopy (EDX), Fourier Transform Infrared (FTIR), and Scanning Electron Microscopy (SEM) imaging. Four concentrations (200, 300, 400, and 500 ppm) of MOL-AgNPs and a deionized water as blank control were tested against larval mortality of the last three larval instars of FAW by food dipping method. Results showed different concentrations of MOL-AgNPs exhibited significantly higher larvicidal activity (p<0.05). In the 4th instar, 67.5%, 82.5%, and 95% larval mortality were observed in MOL-AgNPs at 500 ppm after 24, 48, and 72 h of the larval exposure, respectively. Similarly in the 5th instar larvae, 72.5% (24 h), 83.75% (48 h), and 90% (72 h) mortality was observed after larval exposures to maximum concentration (500 ppm) of MOL-AgNPs. The 6th instar larvae showed 52.5% (24 h), 57.5% (48 h), and 85% (72 h) percentage mortality at 500 ppm. The MOL-AgNPs demonstrated high larvicidal activity which increased with the increase in concentrations of MOL-AgNPs and duration of exposure. The concentration levels with increased duration of exposure resulted in higher larval mortalities in all three larval instars. However, a more pronounced impact of larvicidal activity was observed on the 4th and 5th instars as compared to the 6th instar. The mortality rates recorded for both the concentration of the nanoparticles and the duration of exposure highlighted the potential of MOL-AgNPs as an eco-friendly and effective pest management strategy. https://www.notulaebotanicae.ro/index.php/nbha/article/view/14066fall armywormgreen synthesisMoringapest control |
| spellingShingle | Aqsa NOREEN Mubashar HUSSAIN Muhammad F. MALIK Aniza IFTIKHAR Uswa ZEB Abid FARID Abdullah A. ALARFAJ Mohammad J. ANSARI Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm Notulae Botanicae Horti Agrobotanici Cluj-Napoca fall armyworm green synthesis Moringa pest control |
| title | Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm |
| title_full | Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm |
| title_fullStr | Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm |
| title_full_unstemmed | Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm |
| title_short | Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm |
| title_sort | moringa oleifera based silver nanoparticles synthesis and insecticidal toxicity against fall armyworm |
| topic | fall armyworm green synthesis Moringa pest control |
| url | https://www.notulaebotanicae.ro/index.php/nbha/article/view/14066 |
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