Insecticidal activity and biochemical study of the clove oil (Syzygium aromaticum) nano-formulation on culex pipiens l. (diptera: Culicidae)
El Gohary, El Gohary E.; Farag, Shaimaa M.; El-Sayed, Ahmed A.; Khattab, Reham R.; MAHMOUD, Dalia. M.;
Abstract
In the present study Syzygium aromaticum essential oil (EO) was extracted using water as a solvent and encapsulated within chitosan nanoparticles, which are characterized by Ultraviolet-Visible (UV-VIS) spectra, Infra-Red (IR), Transmission Electron Microscopy (TEM), and X-ray diffraction (XRD). The insecticidal activity for both Syzygium aromaticum bulk EO and encapsulated EO within chitosan nanoparticles was determined. Both of the two oil forms were assessed as a larvicide against third instar larvae of Culex pipiens by measuring LC values. Encapsulated nano-formulation EO showed higher toxicity (LC50 =20 ppm) than the bulk EO (LC50 =39 ppm). The biochemical changes were measured after treatment with both forms of EO. There is an increase in the activity of three enzymes (acid phosphatase, alkaline phosphatase, and glutathione-S-transferase), while the activity of acetylcholinesterase was decreased. The obtained results revealed that water extract of Syzygium aromaticum EO and nano-encapsulated EO may be promising alternative larvicide for controlling Culex pipiens larvae in integrated pest management.
Other data
Title | Insecticidal activity and biochemical study of the clove oil (Syzygium aromaticum) nano-formulation on culex pipiens l. (diptera: Culicidae) | Authors | El Gohary, El Gohary E. ; Farag, Shaimaa M.; El-Sayed, Ahmed A.; Khattab, Reham R.; MAHMOUD, Dalia. M. | Keywords | Biochemistry;Culex pipiens;Encapsulation;Nano-chitosan;Insecticidal;Syzygium aromaticum | Issue Date | 1-Jan-2021 | Journal | Egyptian Journal of Aquatic Biology & Fisheries | Volume | 25 | Issue | 1 | Start page | 227 | End page | 239 | ISSN | 11106131 | DOI | 10.21608/ejabf.2021.137233 | Scopus ID | 2-s2.0-85099695434 |
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