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Adaptability of Toxoptera aurantii (Hemiptera: Aphididae) to Different Tea Cultivars

文献类型： 外文期刊

作者： He, Yingqin 1 ; Lu, Changhao 3 ; Jiang, Wenbin 2 ; Chen, Wenlong 3 ; Fan, Jinjuan 2 ; Niu, Suzhen 2 ; Zhao, Degang 1 ;

作者机构： 1.Guizhou Acad Agr Sci, Guizhou Plant Conservat Ctr, Guiyang 550006, Peoples R China

2.Guizhou Univ, Coll Tea Sci, Guiyang 550025, Peoples R China

3.Guizhou Univ, Inst Entomol, Guizhou Prov Key Lab Agr Pest Management Mountaino, Sci Observing & Expt Stn Crop Pest Guiyang,Minist, Guiyang 550025, Peoples R China

关键词： Toxoptera aurantii; electrical penetration graph; feeding behaviour; population dynamics; host adaptability

期刊名称：AGRICULTURE-BASEL （ 影响因子：3.6； 五年影响因子：3.6 ）

ISSN：

年卷期： 2023 年 13 卷 10 期

页码：

收录情况： SCI

摘要： The adaptability of phytophagous insects to different host plants is a key determinant of their population propagation. Understanding the feeding behaviour and population dynamics of insects is crucial for elucidating host adaptability and screening for insect-resistant germplasms. Here, we investigated Toxoptera aurantii (Hemiptera: Aphididae) adaptability using electropenetrography and assessed its population growth on seven tea cultivars: Huangjinya (HJY), Qianmei601 (QM601), Fudingdabaicha (FD), Longjing43 (LJ43), Qiancha1 (QC1), Qiancha8 (QC8) and Qiancha10 (QC10). The results showed that the feeding behaviour of T. aurantii differed significantly depending on the tea cultivars. The initial probing of T. aurantii on HJY was the earliest among the seven host plants. Aphids on QC1 and QC10 displayed an increased duration of stylet probing and decreased ingestion of phloem sap, whereas a contrasting trend was observed for aphids on HJY. In addition, the mechanical resistance of T. aurantii fed on HJY and QM601 during the probing phase was significantly lower than that of aphids fed on other cultivars. Population dynamic parameters revealed that the growth rate of T. aurantii reared on HJY was the fastest, and its population quantity within 15 days was markedly higher than that of aphids fed on other cultivars. These findings demonstrate that HJY is the most suitable host plant, whereas QC1 and QC10 are less suitable hosts for T. aurantii, although the aphids successfully survived on all the selected tea cultivars. Our results provide valuable information for the biological control of T. aurantii using resistant tea varieties.

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