Effect of six carbohydrate sources on the longevity of a whitefly parasitoid Eretmocerus hayati (Hymenoptera: Aphelinidae)

文献类型： 外文期刊

第一作者： Zhang, Yibo

作者： Zhang, Yibo;Wang, Jinjun;Zhang, Yibo;Yang, Nianwan;Wan, Fanghao

作者机构：

关键词： Biological control;Floral nectar;Honeydew;Mass-rearing process

期刊名称：JOURNAL OF ASIA-PACIFIC ENTOMOLOGY （ 影响因子：1.303； 五年影响因子：1.427 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Parasitoid adults often acquire carbohydrates by feeding on floral nectar and honeydew which provides them with energy and prolongs their life span. The concentration and type of saccharide in nectar and honeydew are variable by species of plant and insect. To explore the effects of various sugar type and concentrations on parasitoid fitness, we compared 5%, 10% and 20% (w/v) solutions of six different sugar resources (glucose, fructose, sucrose, trehalose, melezitose and honey) on the longevity of Eretmocerus hayati, a larval parasitoid of the whitefly Bemisia tabaci in China. Male and female longevity was increased by all of the sugar diets, but female wasps survived longer than the males when the same sugar diet was supplied. Female parasitoids feeding on 10% glucose and 10% honey increased longevity, respectively up to 6.2- and 5.9-fold longer than distil water; 5% honey and 10% fructose had the greatest effects on male longevity, up to 3.5- and 3.3-fold. All six sugar diets, no matter which concentration, significantly changed the survival curves. Glucose, sucrose and honey were optimal sugar diets for this wasp, and 10% was the optimal concentration. Our results could provide an insight into the nutritional requirements of E. hayati under laboratory conditions. Such information can be a basis to improve the longevity of this biological control agent by sugar feeding during the indoor mass-rearing process. (C) 2014 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V. All rights reserved.

分类号： Q96

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