Impact of Nutritional Supplements on the Fitness of the Parasitoid Binodoxys communis (Gahan)

文献类型： 外文期刊

第一作者： Hu, Wanhong

作者： Hu, Wanhong;Ma, Ningwei;Wang, Peiling;Liu, Bing;Xia, Shike;Lu, Yanhui;Liu, Bing;Lu, Yanhui

作者机构：

关键词： Binodoxys communis; fecundity; fitness; flight ability; longevity; parasitism; parasitoid behavior; sugar

期刊名称：INSECTS （ 影响因子：3.0； 五年影响因子：3.1 ）

ISSN：

年卷期： 2024 年 15 卷 4 期

页码：

收录情况： SCI

摘要： Simple Summary: Different nutritional supplements can differentially affect the reproductive performance of parasitoid wasps, and selection of optimal diets can increase parasitoid quality, increasing their effectiveness as biological control agents. Binodoxys communis (Gahan) (Hymenoptera: Aphelinidae) is the main parasitoid attacking Aphis gossypii Glover (Hemiptera: Aphidae) in Xinjiang, China. In this study we tested the effects of fructose, glucose, sucrose, trehalose, maltose, melezitose, and sorbitol on the longevity, parasitism ability, parasitism behavior, and flight ability of B. communis. We found that, compared with other sugars, B. communis fed on glucose, sucrose, or fructose had significantly greatly longevity and parasitism ability. Also, parasitoids that were fed these sugars interacted with A. gossypii more frequently during parasitization and had an enhanced ability. The above information helps in the evaluation of nutritional supplements, both to improve the parasitoid's reproductive performance and its effectiveness as a biological control agent. Alterative nutritional foods consumed by adult parasitoids play an important role in their fitness and ability to control pests because of food scarcity in many crops. While adult parasitoids feed on various sugars, they vary in their nutritional value for parasitoids. We assessed the effects of seven sugars (fructose, glucose, sucrose, trehalose, maltose, melezitose, and sorbitol) on the longevity, parasitism ability, parasitism behavior, and flight ability of B. communis, an important parasitoid of cotton aphids. We found that access to glucose, sucrose, or fructose, increased B. communis adult longevity more than the other sugars offered. All sugars except trehalose increased the parasitism rate to more than 50% compared to the starved control (only provided with water). We then compared parasitoid behaviors of wasps fed glucose, sucrose, or fructose to that of the starved control (with access only to water) and found that those fed B. communis spent more time either examining or attacking aphids than parasitoids in the control group, which spent more time walking or resting. Also, consumption of glucose, sucrose, or fructose also significantly improved the flight ability (the total flight distance, flight time, and average flight speed) of B. communis.

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