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Journal of Tea Science ›› 2017, Vol. 37 ›› Issue (2): 220-227.

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Feeding Selection of Tea Cultivars by the Tea Weevil and the Four Induced Terpenoids

HAN Juanjuan1,2, LI Xiwang1,2, LIU Fengjing3, XIN Zhaojun1,2, ZHANG Jin1,2, ZHANG Xin1,2, SUN Xiaoling1,2,*   

  1. 1. Tea Research Institute of Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    2. Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Hangzhou 310008, China;
    3. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu'an 355000, China
  • Received:2016-10-12 Revised:2016-10-26 Online:2017-04-15 Published:2019-08-22

Abstract: The discrepancies of host selection and food consumption of tea weevil in Longjing 43 and three other tea cultivars (namely Longjing 43, Huangdan, Fuyun 6 and Dangui) were investigated in the present study. The emission discrepancies of the four induced terpenoids were also determined in the four cultivars. The results showed that the landing rate and food consumption of tea weevil female adults in Fuyun 6 were significantly higher than those in Longjing 43 when there had food choice. While the food consumptions of both male and female tea weevil adults in Longjing 43 were significantly higher than those in Huangdan. However, when there had no food choice, food consumption of the same gender had no significant difference with each tea cultivar. When compared with the controls, the infestation of tea weevils dramatically induced the emission level of the four terpenoids in each tea cultivar. When the tea plants were infested by the tea weevils for 12 h, the amount of linalool in Dangui, the amount of (E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), and farnesene in Fuyun 6 were significantly higher than those in LongJing 43. When the tea plants were infested by the tea weevils for 24 h, the amount of ocimene in Huangdan and Dangui, the amount of linalool in Fuyun 6, the amount of DMNT and the amount of farnesene in the three tea cultivars, Huangdan, Dangui and Fuyun 6, were significantly higher than those in Longjing 43.

Key words: Myllocerinus aurolineatus, Camellia Sinensis, cultivar, induced, terpenoids

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