Rosemary essential oil potential as a bio-insecticide for protecting stored dates against the date moth Ectomyelois ceratoniae (Lepidoptera: Pyralidae) | ||
| Journal of Crop Protection | ||
| Article 1, Volume 11, Issue 2, 2022, Pages 173-184 PDF (666.29 K) | ||
| Document Type: Original Research | ||
| DOI: 10.48311/jcp.2022.1587 | ||
| Authors | ||
| SELMA ADOUANE* 1; Yamina Bouatrous2; Mohamed Seghir Mehaoua3; Jose Tudela4; Sara Mechaala2; Virginia Tomas5 | ||
| 1Department of Agricultural Sciences, Mohamed Khider University, BP 145 RP, 07000 Biskra, Algeria. | ||
| 2Laboratory of Genetics, Biotechnology, and Valorization of Bio-resources (GBVB), Faculty of Exact Sciences and Sciences of Nature and Life, Mohamed Khider University, Biskra, Algeria. | ||
| 3Laboratory of Diversity of Ecosystems and Dynamics of Agricultural Production Systems in Arid Zones (DEDSPAZA), Faculty of Exact Sciences and Sciences of Nature and Life, Mohamed Khider University, Biskra, Algeria. | ||
| 4Department of Biochemistry and Molecular Biology, Regional Campus of International Excellence | ||
| 5Department of Analytical Chemistry, Regional Campus of International Excellence | ||
| Abstract | ||
| The present work was undertaken to compare the insecticidal activity of two Rosmarinus officinalis L. (Lamiaceae) essential oils chemotypes from the Mediterranean region against different life stages of Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae) in constant environmental conditions. The essential oils were extracted by hydrodistillation and analyzed by the gas chromatography-mass spectrometry technique (GC-MS). α-pinene (29.42%), camphene (24.62%), and camphor (20.95%) were obtained as the majority compounds in the essential oil of R. officinalis from Algeria, as well as the main essential oil compounds of R. officinalis from Spain were α-pinene (25.62%), 1,8-cineole (21.06%) and camphor (18.39%). Ovicidal activity of oils was studied by topical application, while adulticidal and larvicidal activities were assessed by fumigation and ingestion, respectively. R. officinalis from Spain presented the highest toxic activity against eggs (78.33% inhibition), young larvae (LC50 = 3.40 mg/ml) and adults (LC50 = 0.17 mg/ml). On the other hand, R. officinalis from Algeria presented lower egg hatching inhibition with 60% and fewer fumigant and antifeedant activities (LC50 = 0.30 and 4.97mg/ml for adults and young larvae, respectively). The results of this study indicated the efficacy of rosemary essential oil as an alternative to synthetic insecticides in a postharvest treatment program for the control of E. ceratoniae. | ||
| Keywords | ||
| Insecticidal activity; Essential oils; Rosmarinus officinalis; Ectomyelois ceratoniae; Bio-insecticide | ||
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