Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae)
The aim of the study was to check the effect of <i>Carum carvi</i> L. essential oil and L-carvone on the emigration, repellence and mortality of <i>Sitophilus oryzae</i> L. In the experiments with caraway essential oil, concentrations of 0.1%, 0.5% and 1% were used, and conce...
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MDPI AG
2020-11-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/11/12/836 |
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| author | Małgorzata Kłyś Aleksandra Izdebska Natalia Malejky-Kłusek |
| author_facet | Małgorzata Kłyś Aleksandra Izdebska Natalia Malejky-Kłusek |
| author_sort | Małgorzata Kłyś |
| collection | DOAJ |
| description | The aim of the study was to check the effect of <i>Carum carvi</i> L. essential oil and L-carvone on the emigration, repellence and mortality of <i>Sitophilus oryzae</i> L. In the experiments with caraway essential oil, concentrations of 0.1%, 0.5% and 1% were used, and concentrations of 0.05, 0.1, 0.5 and 1% were used with L-carvone. We assessed whether, in what concentrations and after what exposure time the substances acted on <i>S. oryzae</i> as repellents and/or insecticides. The laboratory tests were carried out at 29 ± 1 °C with 60 ± 5% relative humidity (RH). The deterrence, mortality and abundance of insects were noted after 1, 2, 3, 4, 5, 24 and 48 h. For caraway essential oil and L-carvone, the highest repellency was not shown in the highest concentrations that were used in the tests but in the lower concentrations of 0.5% and 0.1%, respectively. In all used concentrations, caraway essential oil showed repellent effects on <i>S. oryzae</i>. The highest repellency (60–98%) was caused by 0.5% caraway essential oil after 1, 2, 3, 4 and 5 h of research and by 0.1% L-carvone (16–100%). The highest mortality of <i>S. oryzae</i> was caused by 0.5% caraway essential oil and 1% L-carvone. L-carvone at a concentration of 0.05% did not cause mortality in <i>S. oryzae.</i> In conclusion, the greatest repellent effects on <i>S. oryzae</i> were caused by lower doses of caraway essential oil and L-carvone. These compounds do not show the normal relationship described in the previous literature on warehouse pests, in which the repellency increased with increasing concentrations of the tested plant material. |
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| language | English |
| last_indexed | 2024-03-10T14:32:49Z |
| publishDate | 2020-11-01 |
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| series | Insects |
| spelling | doaj.art-34c97e44724f463282e8bfa3468a17df2023-11-20T22:26:58ZengMDPI AGInsects2075-44502020-11-01111283610.3390/insects11120836Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae)Małgorzata Kłyś0Aleksandra Izdebska1Natalia Malejky-Kłusek2Department of Ecology and Environmental Protection, Institute of Biology, Pedagogical University of Cracow, Podchorążych 2, 30-084 Kraków, PolandDepartment of Ecology and Environmental Protection, Institute of Biology, Pedagogical University of Cracow, Podchorążych 2, 30-084 Kraków, PolandDepartment of Ecology and Environmental Protection, Institute of Biology, Pedagogical University of Cracow, Podchorążych 2, 30-084 Kraków, PolandThe aim of the study was to check the effect of <i>Carum carvi</i> L. essential oil and L-carvone on the emigration, repellence and mortality of <i>Sitophilus oryzae</i> L. In the experiments with caraway essential oil, concentrations of 0.1%, 0.5% and 1% were used, and concentrations of 0.05, 0.1, 0.5 and 1% were used with L-carvone. We assessed whether, in what concentrations and after what exposure time the substances acted on <i>S. oryzae</i> as repellents and/or insecticides. The laboratory tests were carried out at 29 ± 1 °C with 60 ± 5% relative humidity (RH). The deterrence, mortality and abundance of insects were noted after 1, 2, 3, 4, 5, 24 and 48 h. For caraway essential oil and L-carvone, the highest repellency was not shown in the highest concentrations that were used in the tests but in the lower concentrations of 0.5% and 0.1%, respectively. In all used concentrations, caraway essential oil showed repellent effects on <i>S. oryzae</i>. The highest repellency (60–98%) was caused by 0.5% caraway essential oil after 1, 2, 3, 4 and 5 h of research and by 0.1% L-carvone (16–100%). The highest mortality of <i>S. oryzae</i> was caused by 0.5% caraway essential oil and 1% L-carvone. L-carvone at a concentration of 0.05% did not cause mortality in <i>S. oryzae.</i> In conclusion, the greatest repellent effects on <i>S. oryzae</i> were caused by lower doses of caraway essential oil and L-carvone. These compounds do not show the normal relationship described in the previous literature on warehouse pests, in which the repellency increased with increasing concentrations of the tested plant material.https://www.mdpi.com/2075-4450/11/12/836essential oilinsecticidesL-carvoneemigrationstorage pests |
| spellingShingle | Małgorzata Kłyś Aleksandra Izdebska Natalia Malejky-Kłusek Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae) Insects essential oil insecticides L-carvone emigration storage pests |
| title | Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae) |
| title_full | Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae) |
| title_fullStr | Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae) |
| title_full_unstemmed | Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae) |
| title_short | Repellent Effect of the Caraway <i>Carum carvi</i> L. on the Rice Weevil <i>Sitophilus oryzae</i> L. (Coleoptera, Dryophthoridae) |
| title_sort | repellent effect of the caraway i carum carvi i l on the rice weevil i sitophilus oryzae i l coleoptera dryophthoridae |
| topic | essential oil insecticides L-carvone emigration storage pests |
| url | https://www.mdpi.com/2075-4450/11/12/836 |
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