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Toxicity and repellent activities of Thymus pallescens and Cymbopogon citratus essential oils against Sitophylus granarius

Author

Listed:
  • Dahou Moutassem

    (Laboratory of Characterization and Valorization of Natural Resources, Faculty of Nature and Life Sciences, Mohamed El Bachir El Ibrahimi University, Bordj Bou Arreridj, Algeria)

  • Yuva Bellik

    (Laboratory of Characterization and Valorization of Natural Resources, Faculty of Nature and Life Sciences, Mohamed El Bachir El Ibrahimi University, Bordj Bou Arreridj, Algeria)

  • Mohamed El Hadi Sannef

    (National High School of Computer Science, Algiers, Algeria)

Abstract

This study evaluated the toxicity and repellent activities of essential oils (EOs) against Sitophilus granarius (Linnaeus, 1758), both in vitro and in vivo conditions. The EOs obtained from Thymus pallescens Noë. (Lamiaceae) and Cymbopogon citratus Stapf. (Poaceae) were analyzed by GC-MS, and revealed that carvacrol (56.64%) and geraniol (20.8%) as the respective major components. T. pallescens EO was found to be a more effective toxicant, with LC50 and LC90 values of 9.3 and 34.6 µL/mL, respectively, in the contact test vs 8.2 and 25.3 µL/mL in the fumigation test. T. pallescens EO showed also a stronger repellent effect with values ranging from 83.4% to 100%. In the in vivo test, the survival probability decreased from 99.9 to 2.48% among insects exposed to T. pallescens EO. These data demonstrated that EOs could be considered effective alternatives to chemical insecticides, providing pest control for stored products in an ecologically sustainable manner.

Suggested Citation

  • Dahou Moutassem & Yuva Bellik & Mohamed El Hadi Sannef, 2021. "Toxicity and repellent activities of Thymus pallescens and Cymbopogon citratus essential oils against Sitophylus granarius," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 57(4), pages 297-309.
    • Handle: RePEc:caa:jnlpps:v:57:y:2021:i:4:id:185-2020-pps
    DOI: 10.17221/185/2020-PPS
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    References listed on IDEAS

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    1. Radek AULICKY & Vaclav STEJSKAL, 2015. "Efficacy and limitations of phosphine "spot-fumigation" against five Coleoptera species of stored product pests in wheat in a grain store - short note," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 51(1), pages 33-38.
    2. Dahou Moutassem & Lakhdar Belabid & Yuva Bellik & Sihem Ziouche & Faiza Baali, 2019. "Efficacy of essential oils of various aromatic plants in the biocontrol of Fusarium wilt and inducing systemic resistance in chickpea seedlings," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 55(3), pages 202-217.
    3. McDonald, Lehman L. & Guy, Richard H. & Speirs, Roy D., 1970. "Preliminary Evaluation of New Candidate Materials as Toxicants, Repellents, and Attractants Against Stored-Product Insects—I," Marketing Research Reports 312345, United States Department of Agriculture, Agricultural Marketing Service, Transportation and Marketing Program.
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