Volatiles from non-host aromatic plants repel tea green leafhopper Empoasca vitis

文献类型： 外文期刊

第一作者： Zhang, Zhengqun

作者： Zhang, Zhengqun;Luo, Zongxiu;Gao, Yu;Bian, Lei;Sun, Xiaoling;Chen, Zongmao;Zhang, Zhengqun

作者机构：

关键词： non-host volatiles;repellent;population suppression;Corymbia citriodora;Lavandula pinnata;intercropping;emission dynamics;Hemiptera;Cicadellidae

期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA （ 影响因子：2.25； 五年影响因子：2.184 ）

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收录情况： SCI

摘要： The tea green leafhopper, Empoasca vitis Gothe (Hemiptera: Cicadellidae), is a serious pest of tea crops in China. The effectiveness of five aromatic non-host plants, Corymbia citriodora (Hook.) (Myrtaceae), Ocimum basilicum L. (Lamiaceae), Lavandula pinnata L. (Lamiaceae), Ruta graveolens L. (Rutaceae), and Rosmarinus officinalis L. (Lamiaceae), was investigated to determine their ability to suppress E.vitis on tea plants. Volatile organic compounds derived from L.pinnata, R.officinalis, and C.citriodora were found to repel leafhoppers and to mask the host's odors. Intercropping L.pinnata and C.citriodora with tea plants significantly reduced the E.vitis population levels in the tea plantation associated with higher population densities of generalist predators. The volatile compounds from the five non-host plants were collected by headspace absorption under field conditions, and the 10 major components were identified. Qualitative and quantitative differences were found among the five odor profiles. Moreover, the emission dynamics of non-host volatiles were monitored. Non-host volatile emissions showed two peak periods, one in the spring and one in the autumn period. These peaks were almost consistent with the population dynamics of E.vitis. Our findings suggested that this newer approach to ecologically based, sustainable pest management implemented via intercropping with non-host aromatic plants such as L.pinnata and C.citriodora offers a promising alternative to chemical control of the leafhopper population.

分类号： Q96

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