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Different Performance of Two Trichogramma (Hymenoptera: Trichogrammatidae) Species Feeding on Sugars

文献类型： 外文期刊

作者： Tian, Jun-Ce 1 ; Wang, Geng-Wei 1 ; Romeis, Jorg 2 ; Zheng, Xu-Song 1 ; Xu, Hong-Xing 1 ; Zang, Lian-Sheng 3 ; Lu, Zho 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Breeding Base Zhejiang Sustainable, 198 Shiqiao Rd, Hangzhou 310021, Zhejiang, Peoples R China

2.ISS, Agroscope, CH-8046 Zurich, Switzerland

3.Jilin Agr Univ, Inst Biol Control, Engn Res Ctr Nat Enemy Insects, Changchun 130118, Peoples R China

关键词： carbohydrate;gustatory response;Trichogramma japonicum;Trichogramma chilonis;longevity

期刊名称：ENVIRONMENTAL ENTOMOLOGY （ 影响因子：2.377； 五年影响因子：2.298 ）

ISSN：

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收录情况： SCI

摘要： Most parasitoids depend on carbohydrate-rich foods to maximize their longevity and reproduction potential. These food resources are commonly from floral nectar, extra-floral nectar, and honeydew, which contain monosaccharides, disaccharides, and oligosaccharides. Here, we report an experiment to explore the effects of 12 naturally occurring sugars on the gustatory response, longevity, and fecundity of Trichogramma japonicum and Trichogramma chilonis. These two parasitoid species differed in their responses to the tested sugars. Trichogramma japonicum showed a high gustatory response to eight sugars, but T. chilonis to only six. However, only fructose, glucose, and sucrose increased the longevity of T. japonicum, and only glucose enhanced the fecundity. For T. chilonis, fructose, galactose, gluctose, maltose, melibiose, sucrose, and melezitose prolonged the longevity and increased fecundity. Furthermore, female T. japonicum benefitted much less from the ingestion of sugars when compared with female T. chilonis. For T. japonicum, feeding on suitable sugars, longevity was increased by a factor of 1.8-2.0, and fecundity by a factor of 1.5. In T. chilonis, longevity increased by a factor of 2.9-5.2 and fecundity by 2.7-4.0. Thus, providing the right sugars to the parasitoids will help to enhance the biological control efficacy of Trichogramma, and T. chilonis in particular.

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