| Autor: |
TLILI, H., BEN CHAABAN, S., BEN ALI, M., ELMNASRI, K., MAHJOUBI, K., MAJEED, W., HEDFI, A., CHAIEB, I. |
| Předmět: |
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| Zdroj: |
Applied Ecology & Environmental Research; 2024, Vol. 22 Issue 4, p3835-3849, 15p |
| Abstrakt: |
The efficacy of essential oils (EOs) extracted from Mentha spicata, Mentha puleguim, Ocimum basilicum, and Ruta graveolens was examined against Oligonychus afrasiaticus in a controlled laboratory conditions. The EOs were tested to assess fumigant toxicity, contact impact, and repellency. The essential oil of R. graveolens was characterized by the high concentration of 2-nonanone (11.9%), 2-undecanone (16.22%) and 1-nonene (19.4%). The composition of O. basilicum EO was characterized by linalool (29.23%), whereas 1,8-cineole (14.60%) was the major constituent in M. puleguim EO. The principal component of M. spicata was carvone (50.6%). The laboratory bioassay results demonstrated that the essential oils derived from M. pulegium, O. basilicum and M. spicata caused a mortality rate of 50% among females when administered at a concentration of 1 µL/L. With this concentration, R. graveolens EO caused significantly higher acaricidal effects (98%) with LC50 = 0.11 µL/L air. All oils showed a significant level of pest-repellent activity, with their repellency effects reaching 95% after 1 h of exposure against female adults of O. afrasiaticus at doses of 0.318 and 1.9 µL/cm². The R. graveolens EO exhibited higher toxicity through residual contact compared to other oils, with LC50 values of 0.18 µL/L air. Toxicity of the highly effective R. graveolens plant can occur via residual contact, repulsive and fumigant action. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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