The Sublethal Effects of Both Essential Oils (Cymbopogon citratus and Mentha piperita) on Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)
Eldesouky, S., Sh. Abdou, M., M. Hassan, S. (2024). The Sublethal Effects of Both Essential Oils (Cymbopogon citratus and Mentha piperita) on Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). EKB Journal Management System, 45(3), 1-9. doi: 10.21608/asejaiqjsae.2024.388830
Sahar Elsayed Eldesouky; Mona Sh. Abdou; Samah M. Hassan. "The Sublethal Effects of Both Essential Oils (Cymbopogon citratus and Mentha piperita) on Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)". EKB Journal Management System, 45, 3, 2024, 1-9. doi: 10.21608/asejaiqjsae.2024.388830
Eldesouky, S., Sh. Abdou, M., M. Hassan, S. (2024). 'The Sublethal Effects of Both Essential Oils (Cymbopogon citratus and Mentha piperita) on Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)', EKB Journal Management System, 45(3), pp. 1-9. doi: 10.21608/asejaiqjsae.2024.388830
Eldesouky, S., Sh. Abdou, M., M. Hassan, S. The Sublethal Effects of Both Essential Oils (Cymbopogon citratus and Mentha piperita) on Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). EKB Journal Management System, 2024; 45(3): 1-9. doi: 10.21608/asejaiqjsae.2024.388830

The Sublethal Effects of Both Essential Oils (Cymbopogon citratus and Mentha piperita) on Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)

Alexandria Science Exchange Journal
Volume 45, Issue 3, October 2024, Page 1-9  XML PDF (320.44 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2024.388830
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Authors
Sahar Elsayed Eldesouky email orcid 1; Mona Sh. Abdou* 2; Samah M. Hassan* 3
1Cotton Pesticides Evaluation Department, Plant Protection Research Institute, Agricultural Research Center, El-Sabhia, P.O. Box 21616, Alexandria, Egypt
2Cotton Pesticides Evaluation Department, Plant Protection Research Institute, Agricultural Research Center, El-Sabhia, Alexandria 21616, Egypt
3Cotton Pesticides Evaluation Department, Plant Protection Research Institute, Agricultural Research Center, El-Sabhia, Alexandria 21616, Egypt.
Abstract
Spodoptera frugiperda (J. E. Smith) is an invasive deleterious pest that causes huge economic losses to various crops, especially maize worldwide. Therefore, the insecticidal and antifeedant activities of lemongrass, Cymbopogon citratus, and peppermint, Mentha piperita essential oils (EOs) against the third larval instar of S. frugiperda were tested under laboratory conditions to find safer alternative approaches to managing S. frugiperda. The impact of sublethal concentrations (LC10 & LC30) of tested EOs on the biological parameters and the activities of detoxifying enzymes of S. frugiperda were also evaluated. Their chemical composition was identified using gas chromatography-mass spectrometry (GC–MS). The major compounds in C. citratus EO were d-limonene (45.06%), β-citral (10.30%), and α-citral (9.90%); whereas, in M. piperita EO were menthol (32.03%), menthone (30.18%), and p-menthan-3-one (11.53%). Bioassay results revealed that C. citratus (LC50= 725.2 mg/L) exhibited more toxicity on S. frugiperda larvae than M. piperita (LC50= 1024.2 mg/L) after 48 h of exposure. Both EOs revealed remarkable antifeedant effects, with the feeding deterrence index ranging from 30.67-43.06% against S. frugiperda. Sublethal concentrations of the tested EOs resulted in prolonged larval and pupal durations, reduced pupal weight of females and males, and decreased pupation and adult emergence percentages, compared to the control. The activities of carboxylesterases and glutathione S-transferase enzymes in S. frugiperda were dramatically suppressed, compared to the control, with dose-dependent effects. These results suggest that M. piperita and C. citratus EOs may be used to manage S. frugiperda.
Keywords
fall armyworm; lemongrass; peppermint; antifeedant activity; biological parameters; detoxifying enzymes
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