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- Title
Chemical composition and insecticidal activity of Ocimum basilicum (Lamiaceae) essential oil and its major constituent, estragole against Sitophilus oryzae (Coleoptera: Curculionidae).
- Authors
Bincy, K.; Remesh, Archana V.; Prabhakar, Patole Reshma; Vivek Babu, C. S.
- Abstract
Sitophilus oryzae (Coleoptera: Curculionidae) is a serious widespread stored product pest of food grains. Exploration of potential Ocimum chemotypes of Indian origin with unique chemical composition for control of stored grain insect pests is limited. Forage for new alternate chemicals, for the control of stored grain insect pests, is an emerging area of research. In the present study, we report on fumigant and contact toxicity of Ocimum basilicum (Lamiaceae), essential oil (EO) against S. oryzae under without and with food conditions. GC analysis of O. basilicum, essential oil, showed the presence of estragole (85.08%) and linalyl acetate (6.75%) as a major constituent. EO of O. basilicum showed insecticidal efficacy on S. oryzae as a good fumigant and contact toxicity at 48 h of exposure in without food condition. Our results suggest that O. basilicum chemotype with higher amount of estragole might be a promising toxicant for the control of stored grain insect pest (S. oryzae).
- Subjects
RICE weevil; ESSENTIAL oils; BASIL; LAMIACEAE; CURCULIONIDAE; INSECT pests; BEETLES
- Publication
Journal of Plant Diseases & Protection, 2023, Vol 130, Issue 3, p529
- ISSN
1861-3829
- Publication type
Article
- DOI
10.1007/s41348-022-00695-4