南方农业学报2025，Vol.56Issue(7)：2124-2133,10.DOI:10.3969/j.issn.2095-1191.2025.07.008
福建省2种草地贪夜蛾卵寄生蜂的田间寄生状况调查
Investigation of the parasitism of two egg parasitoid species of Spodoptera frugiperda in the fields of Fujian Province
摘要
Abstract
[Objective]A survey was carried out in Fujian Province to investigate the field parasitism of Spodoptera frugiperda eggs by two parasitoid species,Telenomus remus and Trichogramma chilonis,aiming to clarify their roles as local natural enemies in natural pest control and to provide a reference for the protection and utilization of natural enemy resources against the Spodoptera frugiperda.[Method]From July to September 2022 and from July to October 2023,egg masses on maize plants were collected using the five-point sampling method from the fields in Changtai District of Zhang-zhou City,Minhou County of Fuzhou City,Sanyuan District of Sanming City,and Jianyang District of Nanping City,Fujian Province,and the collected egg masses were brought back to the laboratory.Observations on egg hatching and parasitoid emergence were conducted daily until all eggs within each egg mass had either hatched or all parasitoids had emerged.For eggs that neither hatched nor produced emerging parasitoids,the species identity of the dead individuals was determined through microscopic examination.The numbers of Spodoptera frugiperda egg masses and individual eggs,as well as the numbers of egg masses and eggs parasitized by the two parasitoids,were recorded,and the egg mass parasi-tism rate and egg parasitism rate were calculated.[Result]The investigation showed that two parasitoid species can parasi-tize Spodoptera frugiperda egg masses either individually or jointly.In the 4 sureyed areas of Fujian Province,the egg mass parasitism rates of the Spodoptera frugiperda by the two parasitoids ranged from 36.91%to 80.95%in 2022 and from 50.64%to 82.35%in 2023.Among the collected Spodoptera frugiperda egg masses,the single-species parasitism rate of Telenomus remus and the co-parasitism rate of the two parasitoid species were both higher than the single-species parasitism rate of Trichogramma chilonis.Within co-parasitized egg masses,the egg parasitism rate of Telenomus remus was significantly(P<0.05)or highly significantly(P<0.01)higher than that of Trichogramma chilonis.[Conclusion]The two egg parasitoids of Spodoptera frugiperda,Telenomus remus and Trichogramma chilonis,demonstrate effective natu-ral pest control in the field,with Telenomus remus exhibiting stronger parasitism capacity.关键词
草地贪夜蛾/夜蛾黑卵蜂/螟黄赤眼蜂/卵寄生蜂/寄生能力/生物防治Key words
Spodoptera frugiperda/Telenomus remus/Trichogramma chilonis/egg parasitoids/parasitic ability/biological control分类
农业科技引用本文复制引用
刘其全,陈秀琴,卢学松,何玉仙,刘必炮,张有豪,邱良妙..福建省2种草地贪夜蛾卵寄生蜂的田间寄生状况调查[J].南方农业学报,2025,56(7):2124-2133,10.基金项目
中央引导地方科技发展资金项目(2023L3059) （2023L3059）
福建省属公益类科研院所基本科研专项(2021R1024007) （2021R1024007）
福建省"5511"协同创新工程项目(XTCXGC2021011) （XTCXGC2021011）
福建省农业科学院科技创新团队项目(CXTD2021002-1) Central Government Guiding Local Science and Technology Development Project(2023L3059) （CXTD2021002-1）
The Basic Scientific Research Projects of Fujian Provincial Public Welfare Scientific Research Institutes(2021R1024007) （2021R1024007）
Fujian Provincial Agricultural High-quality Development beyond the"5511"Collaborative Innovation Project(XTCXGC2021011) （XTCXGC2021011）
Science and technology innovation team of Fujian Academy of Agricultural Sciences(CXTD2021002-1) （CXTD2021002-1）
