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Effects of High-Level Acylsugar-Producing Tomato Lines on the Development of Tomato Psyllids (Hemiptera: Triozidae)

文献类型： 外文期刊

作者： Li, Zhenyu 1 ; Kund, Gregory 2 ; De Jong, Darlene M. 3 ; Feng, Xia 1 ; Mutschler, Martha A. 3 ; Trumble, John T. 2 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Plant Protect, Guangzhou 510640 10, Guangdong, Peoples R China

2.Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA

3.Cornell Univ, Sch Integrat Plant Sci, Sect Plant Breeding & Genet, Ithaca, NY 14853 USA

关键词： host plant resistance; potato psyllid; tomato vein greening

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.381； 五年影响因子：2.568 ）

ISSN： 0022-0493

年卷期： 2019 年 112 卷 4 期

页码：

收录情况： SCI

摘要： Acylsugars have been shown to provide activity against numerous insect pests of tomatoes. Comparison of acylsugar levels in four tomato plant lines, FA7/AS, FA2/AS, CU071026, and Yellow Pear', found that the acylsugar contents in the elevated acylsugar lines were significantly higher than the commercial Yellow Pear (control) tomato plant line. Adult choice tests indicated that the tomato psyllid, Bactericera cockerelli, preferred to settle on the Yellow Pear and FA2/AS lines over the line with the highest content of acylsugars, FA7/AS, and the parental line, CU071026. The no-choice test demonstrated that adults laid fewer eggs on the high acylsugar tomato lines than on the control tomato line, Yellow Pear. For all high acylsugar lines, the relative growth index of the psyllid was significantly lower compared with the commercial line, indicating a reduced potential for population growth. Although some tomato psyllids completed their life cycle on the high acylsugar tomato plant lines, the percent survival of psyllids to the adult stage when developing on the high acylsugar lines was significantly less (range = 43.7-57.1%) than on the commercial tomato line (83.8%). All mortality occurred during the early stages of development (egg stage to third instar), which has implications for acquisition and transmission of Candidatus Liberibacter solanacearum, the causal agent of tomato vein greening disease. Therefore, with reduced attractiveness for tomato psyllids and significantly reduced survival, the high-acylsugar tomato plant lines have the potential to be part of an integrated pest management program for this pest.

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