Susceptibility of Selected Tea Shoots to Oviposition byEmpoasca onukii(Hemiptera: Cicadellidae) and Feasibility of Egg Removal with Harvesting
文献类型： 外文期刊
作者： Hou, Bo-Hua 1 ; Tang, Hao 2 ; Li, Jian-Long 2 ; Meng, Xiang 1 ; Ouyang, Ge-Cheng 1 ;
作者机构： 1.Guangdong Inst Appl Biol Resources, Guangdong Publ Lab Wild Anim Conservat & Utilizat, Guangdong Key Lab Anim Conservat & Resource Utili, Guangzhou 510260, Peoples R China
2.Guangdong Acad Agr Sci, Tea Res Inst, Guangzhou 510640, Peoples R China
关键词： oviposition preference; leaf order interval; pest incidence; leafhopper; shoot characteristics
期刊名称：INSECTS （ 影响因子：2.769； 五年影响因子：3.046 ）
ISSN：
年卷期： 2020 年 11 卷 6 期
页码：
收录情况： SCI
摘要： TheEmpoasca onukii(Hemiptera: Cicadellidae) female lays its eggs inside the epidermis of the tea plant shoots. This has led to speculation that shoot harvesting could represent a method of egg removal. To verify the validity of this hypothesis, we sought to determine which part of the shoot was used for the oviposition and how the value of the harvested shoot affects the cost of the egg removal. In this study, four tea cultivars were chosen to examine the preferences for the site of oviposition. In addition, a mathematical model was used to describe the correlation between the economic value of the selected shoot and eggs laid within the shoot. Our study revealed that the pest preferred the 3rd and 4th leaf order intervals of the shoot as the oviposition sites, and the oviposition preferences was dependent on the leaf order interval class across all tea cultivars. In addition, a significant negative exponential relationship was found between the economic value of the selected shoot and the percentage of the eggs laid within the shoot, indicating that egg removal through shoot harvesting was limited. The findings of this study could be used to better understand the role of shoot harvesting in egg removal and would provide new insights into the understanding of the incidence of this pest.
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