Toxicity of Ocimum basilicumL. leaf extract against Spodoptera exiguaHübner (Lepidoptera: Noctuidae)
Penulis/Author
NADYA SOFIA SITI S (1); Sukirno, S.Si., M.Sc., Ph.D. (2); Dr. Tri Rini Nuringtyas, S.Si., M.Sc. (3); Prof. Dr. Laurentius Hartanto Nugroho, M.Agr. (4)
Tanggal/Date
2024
Kata Kunci/Keyword
Abstrak/Abstract
The beet armyworm Spodoptera exiguaHübner (Lepidoptera: Noctuidae) is one of the most significant shallot pests worldwide, which affects agricultural production by approximately 100% in Indonesia. The growing awareness of sustainable agriculture encourages the search for natural alternatives to synthetic pesticides that promote resistance and contaminate the environment. Therefore, this study aims to evaluate the efficacy of basil (Ocimum basilicumL.) leaf extract against the 2ndand 3rdinstar larvae of S. exigua. The extracts were prepared using maceration and hydrodistillation and the pathogenicity was carried out against the 2ndand 3rdinstar ofS. exigua using three replicates with several doses of extract ranging from 0-2.0 percent. The extracts were applied to the larvae using contact and topical methods. The results showed that maceration extraction yields a greater extract with different types compared to those of the hydro-distillation method.Maceration extract of basil leaves with the contact application method to 2ndinstar showed better results than the topical application, with the highest mortality rate of 75% (F=24.464; P< 0.001) and LC50of 0.007%. This indicated that basil leaf extract with the contact application method has great potential to be developed as a botanical insecticide to control S. exiguain the field as part of Integrated Pest Management (IPM).
