Effects of Temperature and Humidity on the Fitness of Aphid Parasitoid, Binodoxys communis

文献类型： 外文期刊

第一作者： Xia, Shike

作者： Xia, Shike;Lu, Yanhui;Ma, Ningwei;Wang, Peiling;Lu, Yanhui

作者机构：

关键词： Binodoxys communis; Aphis gossypii; temperature; humidity; parasitism efficiency; population expansion; biological control

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2025 年 16 卷 3 期

页码：

收录情况： SCI

摘要： Binodoxys communis is a dominant endoparasitoid of aphids in cotton fields, yet empirical evidence on how temperature and humidity regulate its growth, development, and reproduction remains limited. To address this gap, we assessed the effects of both constant and fluctuating temperature, as well as various combinations of temperature and humidity, on the longevity, parasitism, and fecundity of this parasitoid. Our results revealed that adult longevity of B. communis was longer at 20 degrees C and 25 degrees C while significantly shortened at a high temperature (35 degrees C). Similarly, the parasitism rate, female ratio, emergence duration, and offspring longevity of the parasitoid were all superior at 20 degrees C and 25 degrees C compared to 15 degrees C and 35 degrees C. Moreover, the longevity of both male (6.96 +/- 0.10 d) and female (6.88 +/- 0.07 d) parasitoids was significantly extended at 25 degrees C and 60% RH. Temperature had a marked impact on the parasitic capability of parasitoids, with the number of Aphis gossypii parasitized daily by B. communis being significantly higher at 25 degrees C than at 15 degrees C and 35 degrees C. Nevertheless, humidity and the interaction between humidity and temperature had no significant influence on parasitic capacity. The parasitism of B. communis followed the Holling-II model, with the highest daily maximum parasitism observed at 25 degrees C. In conclusion, our study showed that 25 degrees C positively enhanced the fitness of B. communis, providing a valuable reference for indoor population expansion and field release of B. communis, potentially enhancing its effectiveness as a biological control agent against aphids.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序