<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The present work aimed to determine the insecticidal effects of three selected essential oils (EOs) of <italic>Pogostemon cablin</italic>, <italic>Thymus vulgaris</italic>, and <italic>Citrus aurantifolia</italic> against three insect species <italic>Melolontha melolontha</italic>, <italic>Halyomorpha halys</italic>, and <italic>Pyrrhocoris apterus</italic>. EO <italic>P. cablin</italic> showed very strong insecticidal effects against <italic>M. melolontha</italic> when it inhibited the insect species by more than 50% at concentrations of 50–6.25%. Against <italic>H. halys</italic> it also showed strong insecticidal effects at concentrations of 50–12.5%. The insecticidal activity against <italic>P. apterus</italic> was significantly lower than against the other insect species tested. The insecticidal activity of at least 50% was only observed at a concentration of 50%. EO <italic>T. vulgaris</italic> showed very strong insecticidal activity against <italic>M. melolontha</italic> which reached at least 50% at concentrations of 50–6.25%. When tested for its effect against <italic>H. halys</italic>, high efficacy was observed at concentrations of 50–12.5%. Against <italic>P. apterus</italic>, the efficacy was the lowest as 50% insecticidal activity was observed only at concentrations of 50% and 25%. EO <italic>C. aurantifolia</italic> showed only weak insecticidal activity against <italic>M. melolontha</italic> where the highest concentration tested killed 50% of the individuals. The very weak insecticidal activity was observed against <italic>H. halys</italic> where none of the tested concentrations had efficacy higher than 50%. The most pronounced effect of EO <italic>C. aurantifolia</italic> was observed against <italic>P. apterus</italic> where concentrations of 50% and 25% killed more than 50% of individuals. All tested EOs showed insecticidal effects and could potentially represent a natural alternative to synthetic insecticides.</p>
</abstract>

The present work aimed to determine the insecticidal effects of three selected essential oils (EOs) of Pogostemon cablin, Thymus vulgaris, and Citrus aurantifolia against three insect species Melolontha melolontha, Halyomorpha halys, and Pyrrhocoris apterus. EO P. cablin showed very strong insecticidal effects against M. melolontha when it inhibited the insect species by more than 50% at concentrations of 50–6.25%. Against H. halys it also showed strong insecticidal effects at concentrations of 50–12.5%. The insecticidal activity against P. apterus was significantly lower than against the other insect species tested. The insecticidal activity of at least 50% was only observed at a concentration of 50%. EO T. vulgaris showed very strong insecticidal activity against M. melolontha which reached at least 50% at concentrations of 50–6.25%. When tested for its effect against H. halys, high efficacy was observed at concentrations of 50–12.5%. Against P. apterus, the efficacy was the lowest as 50% insecticidal activity was observed only at concentrations of 50% and 25%. EO C. aurantifolia showed only weak insecticidal activity against M. melolontha where the highest concentration tested killed 50% of the individuals. The very weak insecticidal activity was observed against H. halys where none of the tested concentrations had efficacy higher than 50%. The most pronounced effect of EO C. aurantifolia was observed against P. apterus where concentrations of 50% and 25% killed more than 50% of individuals. All tested EOs showed insecticidal effects and could potentially represent a natural alternative to synthetic insecticides.

Insecticidal activity of selected essential oils

Acta Horticulturae et Regiotecturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Insecticidal activity of selected essential oils"}

The present work aimed to determine the insecticidal effects of three selected essential oils (EOs) of Pogostemon cablin, Thymus vulgaris, and Citrus...

Insecticidal activity of selected essential oils

Article Category: Research Article

Published Online: May 23, 2023

Page range: 9 - 13

Received: Dec 20, 2022

Accepted: Jan 25, 2023

DOI: https://doi.org/10.2478/ahr-2023-0002

Keywords
insecticidal activity,

© 2023 Lucia Galovičová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Insecticidal activity of selected essential oils

Article Category: Research Article

Published Online: May 23, 2023

Page range: 9 - 13

Received: Dec 20, 2022

Accepted: Jan 25, 2023

DOI: https://doi.org/10.2478/ahr-2023-0002

Keywordsinsecticidal activity,

© 2023 Lucia Galovičová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
insecticidal activity,