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Titre: | Chemical composition and bioactivity of essential oil against the green peach aphid (Myzus persicae) |
Auteur(s): | Dehliz, Abderrahmene Lakhdari, Wassima Mlik, Randa Chahbar, Nora Acheuk, Fatma Mekhadmi, Nour El Houda Benyahia, Ibtissem Fethallah, Rabab Hammi, Hamida Berrekbia, Mohammed Badjadi, Zeineb |
Mots-clés: | Bio-insecticide Cotula cinerea Myzus persicae Repellency Reproduction Toxicity |
Date de publication: | 2022 |
Editeur: | Springer |
Collection/Numéro: | Organic Agriculture/ Vol.12, N°3 (2022);pp. 411-418 |
Résumé: | The present experiment was conducted to elucidate the chemical composition of essential oil (EO) of a native spontaneous plant, Cotula cinerea Del., in southeastern Algeria and to evaluate its insecticidal effect on the Green Peach Aphid (GPA) Myzus persicae Sulzer. GC–MS and GC-FID analyses showed that this plant was characterized by 35 components, representing eight major constituents, i.e., santolina triene (11.55%), sabinene (5.86%), cineol (6.21%), α-thujone (22.91%), (R)-camphor (7.50%), cis-sabinyl acetate (6.41%), carveol (7.68%), and ipsenol (4.60%). The considered essential oil was characterized by a clear predominance of hydrocarbon compounds chiefly monoterpenes (35.63%), oxygenated monoterpenes (64%), and sesquiterpenes (0.35%). Insecticidal assays showed that the EO was toxic against M. persicae adults recording 75.95% of mortality in the 3rd dose with a lethal concentration (LC50) equal to 302.4 µl where the lethal time (LT50) was 91.6 h. Also, it has a significant repellency showing a high rate in the 2nd dose (64.6%) with a highly significant difference (p = 0.000). As well as its inhibitory effect on the egg-laying where it has greatly reduced the reproduction potential of M. persicae adults. Obtained data support the possibility to develop C. cinerea oil, especially component specification, as a new natural bio-insecticide |
URI/URL: | DOI 10.1007/s13165-022-00398-y https://link.springer.com/article/10.1007/s13165-022-00398-y http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/10220 |
ISSN: | 18794238 |
Collection(s) : | Publications Internationales
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