Affiliation:
1. Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing China
Abstract
AbstractBACKGROUNDTelenomus remus (Nixon) is a dominant natural enemy controlling the invasive pest Spodoptera frugiperda (J. E. Smith). Continuous rearing of egg parasitoids on alternative hosts is crucial for mass production and cost reduction. However, to ensure the effectiveness of natural enemy products against target pests in the field, it is necessary to evaluate the parasitoid quality during the mass‐rearing process. Despite the successful rearing of this parasitoid on the alternative host Spodoptera litura (Fabricius) eggs, less attention has been paid to the quality of parasitoids continuously reared for multiple generations. Therefore, we evaluated the performance of T. remus reared on S. litura eggs for 30 generations via morphological characteristics, flight ability, and life table analysis.RESULTSWing length, wing width, body length, and right hind tibia length of T. remus did not differ among the different generations. However, the body length of female parasitoids was significantly longer than that of males for any generation. Although the proportion of ‘flyers’ and ‘deformed’ T. remus varied among generations, the flight ability did not decline significantly after rearing on S. litura eggs. Moreover, T. remus continuously reared on S. litura eggs maintained stable parasitism performance and life table parameters on the target host S. frugiperda eggs.CONCLUSIONS. litura eggs are suitable hosts for the mass‐rearing of T. remus. This study can be subsequently used to guide the production and facilitate the application of T. remus in the control of S. frugiperda. © 2023 Society of Chemical Industry.
Funder
Agricultural Science and Technology Innovation Program
Subject
Insect Science,Agronomy and Crop Science,General Medicine
Reference75 articles.
1. Host Plants ofSpodoptera frugiperda(Lepidoptera: Noctuidae) in the Americas
2. A Review of the Biology of the Fall Armyworm
3. Global crop impacts, yield losses and action thresholds for fall armyworm (Spodoptera frugiperda): A review
4. China National Agro‐Tech Extension and Service Center Major pest Spodoptera frugiperda has invaded in Yunnan and the field scouting and monitoring for this pest to start immediately within China(2019). Available:https://www.natesc.org.cn/news/des?id=c004cc6d-d305-40d7-a360-603f2919813d&Category=%E5%85%A8%E6%96%87%E6%90%9C%E7%B4%A2&CategoryId=d6a35339-e804-4f90-bf93-927382b1fd22[29 January 2019].
5. Research progress in managing the invasive fall armyworm, Spodoptera frugiperda in China;Guo JF;Plant Prot,2022
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献