Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i>
The weevil <i>Curculio chinensis</i> Chevrolat (Coleoptera: Curculionidae) is a major cause of economic losses to growers of <i>Camellia oleifera</i> in China, as females lay their eggs in developing fruits and the hatching larvae feed on their seed, aborting fruit growth. Ol...
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MDPI AG
2022-11-01
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| author | Hualong Qiu Danyang Zhao Eduardo G. P. Fox Siquan Ling Changsheng Qin Jinzhu Xu |
| author_facet | Hualong Qiu Danyang Zhao Eduardo G. P. Fox Siquan Ling Changsheng Qin Jinzhu Xu |
| author_sort | Hualong Qiu |
| collection | DOAJ |
| description | The weevil <i>Curculio chinensis</i> Chevrolat (Coleoptera: Curculionidae) is a major cause of economic losses to growers of <i>Camellia oleifera</i> in China, as females lay their eggs in developing fruits and the hatching larvae feed on their seed, aborting fruit growth. Olfactory cues play a key role in the host location of this weevil. The present study focused on identifying volatiles from different parts of the host plant <i>Ca. oleifera,</i> namely, the leaves, fruit peel, and seeds, and testing the antennal and behavioral responses of adult <i>Cu. chinensis</i> to those same volatiles. Methods relied on gas chromatography, electroantennograms, and Y-tube bioassays. The results included a total of twenty-five volatiles emitted by the three plant parts, among which eight elicited antennal responses in <i>Cu. chinensis</i> adults of both sexes. The behavioral bioassays indicated that 3-hexenal, trans-2-hexen-1-ol, methyl salicylate, geraniol, and phenethyl alcohol were attractive to <i>Cu. chinensis,</i> while trans-2-hexenal and 2-ethyl-1-hexanol were repellent. Tests with different concentrations indicated that the behavioral response could be dose-dependent. Future studies should focus on field tests with blends of the attractant compounds in order to develop novel, improved control methods for field applications. |
| first_indexed | 2024-03-09T19:08:21Z |
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| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-09T19:08:21Z |
| publishDate | 2022-11-01 |
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| series | Diversity |
| spelling | doaj.art-6917b16954804feba7dc1daf937372152023-11-24T04:21:25ZengMDPI AGDiversity1424-28182022-11-01141195110.3390/d14110951Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i>Hualong Qiu0Danyang Zhao1Eduardo G. P. Fox2Siquan Ling3Changsheng Qin4Jinzhu Xu5Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, ChinaGuangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, ChinaPrograma de Pós-Graduação em Ambiente e Sociedade (PPGAS), Universidade Estadual de Goiás (UEG), Jardim América, Quirinópolis 75650-000, BrazilGuangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, ChinaGuangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, ChinaGuangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, ChinaThe weevil <i>Curculio chinensis</i> Chevrolat (Coleoptera: Curculionidae) is a major cause of economic losses to growers of <i>Camellia oleifera</i> in China, as females lay their eggs in developing fruits and the hatching larvae feed on their seed, aborting fruit growth. Olfactory cues play a key role in the host location of this weevil. The present study focused on identifying volatiles from different parts of the host plant <i>Ca. oleifera,</i> namely, the leaves, fruit peel, and seeds, and testing the antennal and behavioral responses of adult <i>Cu. chinensis</i> to those same volatiles. Methods relied on gas chromatography, electroantennograms, and Y-tube bioassays. The results included a total of twenty-five volatiles emitted by the three plant parts, among which eight elicited antennal responses in <i>Cu. chinensis</i> adults of both sexes. The behavioral bioassays indicated that 3-hexenal, trans-2-hexen-1-ol, methyl salicylate, geraniol, and phenethyl alcohol were attractive to <i>Cu. chinensis,</i> while trans-2-hexenal and 2-ethyl-1-hexanol were repellent. Tests with different concentrations indicated that the behavioral response could be dose-dependent. Future studies should focus on field tests with blends of the attractant compounds in order to develop novel, improved control methods for field applications.https://www.mdpi.com/1424-2818/14/11/951integrated pest managementplant odorssecondary metabolitesgreen chemistry |
| spellingShingle | Hualong Qiu Danyang Zhao Eduardo G. P. Fox Siquan Ling Changsheng Qin Jinzhu Xu Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i> Diversity integrated pest management plant odors secondary metabolites green chemistry |
| title | Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i> |
| title_full | Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i> |
| title_fullStr | Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i> |
| title_full_unstemmed | Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i> |
| title_short | Chemical Cues Used by the Weevil <i>Curculio chinensis</i> in Attacking the Host Oil Plant <i>Camellia oleifera</i> |
| title_sort | chemical cues used by the weevil i curculio chinensis i in attacking the host oil plant i camellia oleifera i |
| topic | integrated pest management plant odors secondary metabolites green chemistry |
| url | https://www.mdpi.com/1424-2818/14/11/951 |
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