Evaluation of the Population Growth Potential of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on Six Common Potato Cultivars in China
文献类型: 外文期刊
作者: Yan, Shu-Yan;Yang, He-Sen;Gao, Hong-Yu;Deng, Feng-Zhi;Zhang, Gui-Fen;Li, Chuan-Ren;Wan, Fang-Hao;Liu, Wan-Xue;Huang, Cong;Zhang, Yi-Bo
作者机构:
关键词: host plant resistance;population growth;potato;South American tomato leaf miner;two-sex life table
期刊名称: HORTICULTURAE
ISSN:
年卷期: 2025 年 12 卷 1 期
页码:
收录情况: SCIE(2025版)
摘要: The South American tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Syn.: Phthorimaea absoluta), is a pest of great economic importance worldwide. Although T. absoluta shows a strong preference for tomato, it can also attack potato, eggplant, and various wild solanaceous plants, thereby posing new challenges for pest control. To assess the adaptability of this pest to different potato varieties, an age-stage, two-sex life table method was used to determine the development, survival, reproduction, and key population parameters of the pest on six common potato varieties (Hezuo No. 88, Lishu No. 6, Weiyu No. 3, Zhongshu No. 5, Qingshu No. 9, and Qingshu No. 10) in China. The results showed that T. absoluta could complete its entire life cycle on all cultivars. However, key life history parameters varied significantly. On cultivars Qingshu No. 9 and Qingshu No. 10, the pest exhibited significantly prolonged preadult duration and total pre-oviposition period (TPOP), as well as reduced adult fecundity. In contrast, Hezuo No. 88 supported the highest intrinsic rate of increase (r) and net reproductive rate (R0). The 60-day population projections further highlighted this contrast, showing that the T. absoluta population on Hezuo No. 88 increased by a factor of 4.26 and 3.52 times compared to that on Qingshu No. 9 and Qingshu No. 10, respectively. We conclude that cultivars Qingshu No. 9 and Qingshu No. 10 exhibit antibiosis resistance against T. absoluta. This study not only provides a theoretical foundation and candidate materials for breeding pest-resistant potato varieties, but also establishes a basis for IPM strategies against T. absoluta that are founded on host resistance.
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