2017/12/14 by Luis Carlos Martínez, L.C. Martínez, A. Plata-Rueda +13
Agricultural and Biological Sciences · #Insect Pest Control Strategies #Insect Utilization and Effects #Insect and Pesticide Research
paper · pdf · doi:10.1017/s0007485317001262
crossref issued 2017/12/14 · crossref published 2017/12/14 · crossref published-online 2017/12/14 · openalex publication_date 2017/12/14 · crossref created 2017/12/14 · openalex created_date 2017/12/22 · crossref published-print 2018/12/01 · crossref deposited 2022/08/10 · crossref indexed 2026/07/30 · openalex updated_date 2026/07/31
The study identified insecticidal effects from the cinnamon and clove essential oils in Tenebrio molitor L. (Coleoptera: Tenebrionidae). The lethal concentrations (LC50 and LC90), lethal time, and repellent effect on larvae, pupae, and adults of T. molitor after exposure to six concentrations of each essential oil and toxic compounds were evaluated. The chemical composition of the cinnamon oil was also determined and primary compounds were eugenol (10.19%), trans-3-caren-2-ol (9.92%), benzyl benzoate (9.68%), caryophyllene (9.05%), eugenyl acetate (7.47%), α-phellandrene (7.18%), and α-pinene (6.92%). In clove essential oil, the primary compounds were eugenol (26.64%), caryophyllene (23.73%), caryophyllene oxide (17.74%), 2-propenoic acid (11.84%), α-humulene (10.48%), γ-cadinene (4.85%), and humulene oxide (4.69%). Cinnamon and clove essential oils were toxic to T. molitor. In toxic chemical compounds, eugenol have stronger contact toxicity in larvae, pupae, and adult than caryophyllene oxide, followed by α-pinene, α-phellandrene, and α-humulene. In general, the two essential oils were toxic and repellent to adult T. molitor. Cinnamon and clove essential oils and their compounds caused higher mortality and repellency on T. molitor and, therefore, have the potential for integrated management programs of this insect.