Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky
Maize weevils, <i>Sitophilus zeamais</i>, are stored product pests mostly found in warm and humid regions around the globe. In the present study, acute toxicity via contact and residual bioassay and fumigant bioassay of 28 essential oils as well as their attraction–inhibitory activity ag...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/11/8/474 |
| _version_ | 1797561256449671168 |
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| author | Yunho Yang Murray B. Isman Jun-Hyung Tak |
| author_facet | Yunho Yang Murray B. Isman Jun-Hyung Tak |
| author_sort | Yunho Yang |
| collection | DOAJ |
| description | Maize weevils, <i>Sitophilus zeamais</i>, are stored product pests mostly found in warm and humid regions around the globe. In the present study, acute toxicity via contact and residual bioassay and fumigant bioassay of 28 essential oils as well as their attraction–inhibitory activity against the adults of <i>S. zeamais</i> were evaluated. Chemical composition of the essential oils was analyzed by gas chromatography-mass spectrometry, and a compound elimination assay was conducted on the four most active oils (cinnamon, tea tree, ylang ylang, and marjoram oils) to identify major active constituents. Amongst the oils examined, cinnamon oil was the most active in both contact/residual and fumigant bioassays, and exhibited strong behavioral inhibitory activity. Based on the compound elimination assay and chemical analyses, <i>trans</i>-cinnamaldehyde in cinnamon oil, and terpinen-4-ol in tea tree and marjoram oils were identified as the major active components. Although cinnamon oil seemed promising in the lab-scale bioassay without rice grains, it failed to exhibit strong insecticidal activity when the container was filled with rice. When a cinnamon oil-based product was applied both in an empty glass jar and a rice-filled container, all weevils in the empty jar were killed, whereas fewer than 15% died in the rice-filled container. |
| first_indexed | 2024-03-10T18:12:28Z |
| format | Article |
| id | doaj.art-d34843c60ca44751a38965684c5386c8 |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-10T18:12:28Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-d34843c60ca44751a38965684c5386c82023-11-20T08:02:26ZengMDPI AGInsects2075-44502020-07-0111847410.3390/insects11080474Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> MotschulskyYunho Yang0Murray B. Isman1Jun-Hyung Tak2Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, KoreaFaculty of Land and Food Systems, University of British Columbia, Vancouver, BC V6T 1Z4, CanadaDepartment of Agricultural Biotechnology, Seoul National University, Seoul 08826, KoreaMaize weevils, <i>Sitophilus zeamais</i>, are stored product pests mostly found in warm and humid regions around the globe. In the present study, acute toxicity via contact and residual bioassay and fumigant bioassay of 28 essential oils as well as their attraction–inhibitory activity against the adults of <i>S. zeamais</i> were evaluated. Chemical composition of the essential oils was analyzed by gas chromatography-mass spectrometry, and a compound elimination assay was conducted on the four most active oils (cinnamon, tea tree, ylang ylang, and marjoram oils) to identify major active constituents. Amongst the oils examined, cinnamon oil was the most active in both contact/residual and fumigant bioassays, and exhibited strong behavioral inhibitory activity. Based on the compound elimination assay and chemical analyses, <i>trans</i>-cinnamaldehyde in cinnamon oil, and terpinen-4-ol in tea tree and marjoram oils were identified as the major active components. Although cinnamon oil seemed promising in the lab-scale bioassay without rice grains, it failed to exhibit strong insecticidal activity when the container was filled with rice. When a cinnamon oil-based product was applied both in an empty glass jar and a rice-filled container, all weevils in the empty jar were killed, whereas fewer than 15% died in the rice-filled container.https://www.mdpi.com/2075-4450/11/8/474maize weevilessential oilcinnamon oilfumigant toxicitycontact toxicityattraction inhibition |
| spellingShingle | Yunho Yang Murray B. Isman Jun-Hyung Tak Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky Insects maize weevil essential oil cinnamon oil fumigant toxicity contact toxicity attraction inhibition |
| title | Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky |
| title_full | Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky |
| title_fullStr | Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky |
| title_full_unstemmed | Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky |
| title_short | Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing <i>Cinnamomum cassia</i> Bark Essential Oil against <i>Sitophilus zeamais</i> Motschulsky |
| title_sort | insecticidal activity of 28 essential oils and a commercial product containing i cinnamomum cassia i bark essential oil against i sitophilus zeamais i motschulsky |
| topic | maize weevil essential oil cinnamon oil fumigant toxicity contact toxicity attraction inhibition |
| url | https://www.mdpi.com/2075-4450/11/8/474 |
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