数字农科院2.0

Myrmeleon fuscus is a promising predator for biological control of the red imported fire ant, Solenopsis invicta: from laboratory to field assessments

文献类型： 外文期刊

作者： Zhang, Tingting;Li, Xiaokang;Wang, Mengqing;Li, Yuyan;Shen, Zhongjian;Zhang, Lisheng;Mao, Jianjun

作者机构：

关键词： antlion;ant worker;predation efficiency;functional response;colonization;mesocosm experiment;biological control agent;foraging behavior disruption;generalist predator

期刊名称： ENTOMOLOGIA GENERALIS

ISSN： 0171-8177

年卷期： 2026 年

页码：

收录情况： SCIE（2025版）

摘要： The red imported fire ant Solenopsis invicta (Hymenoptera: Formicidae) is an aggressive social insect pest native to South America and now present in many countries. Chemical control is the main strategy for managing this pest; however, it leads to environmental pollution and harmful effects on non-target arthropods. Although phorid flies have been shown as parasitoids against S. invicta, predators of S. invicta have rarely been reported. In this study, a natural predator, Myrmeleon fuscus (Neuroptera: Myrmeleontidae) against S. invicta was assessed. The 1st, 2nd, and 3rd instar larvae of M. fuscus preyed on both small and large S. invicta workers. The ratio of S. invicta workers consumed by M. fuscus was dependent on prey density, suggesting a type II functional response of M. fuscus to S. invicta. The maximum daily predation amounts of the 3rd instar M. fuscus larvae on small and large S. invicta workers were 47.17 and 13.19, respectively. The searching effects ofM. fuscus on S. invicta were negatively correlated with prey density. As the predation efficiency of M. fuscus was influenced by predator density, M. fuscus had an intraspecific interference response to S. invicta. The foraging S. invicta workers were reduced by 24.43% due to predation of the 3rd instar M. fuscus larvae on the 30th day after predator release. Nest migration was not observed outside the mesocosm area during the experimental period. We demonstrated that M. fuscus is an excellent predator of S. invicta and has promising potential for the management of this invasive ant.

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