Current status of the biological control of the fall armyworm Spodoptera frugiperda by egg parasitoids

Li, Tianhao; Bueno, Adeney de Freitas; Desneux, Nicolas; Zhang, Lisheng; Wang, Zhenying; Dong, Hui; Wang, Su; Zang, Lian‐Sheng

doi:10.1007/s10340-023-01639-z

Cited by 13 publications

(10 citation statements)

References 173 publications

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“…Chelonus trojanus can be separated from the following species through COI DNA barcoding, by examining the clade to which the sequence belongs in a phylogeny (Figure 9). Rearing records listed below are as collated in Li et al (2023).…”

Section: Diagnosismentioning

confidence: 99%

“…There have been close to 100 hymenopteran parasitoid species reared from S. frugiperda across the globe, with high diversity from the families Braconidae and Ichneumonidae, and the superfamily Chalcidoidea (Agboyi et al 2020;Ashley 1986;García-Gonz alez, Rios-Velasco, & Iglesias-Pérez 2020;Gutiérrez-Ramírez et al 2015;Li et al 2023;Meagher et al 2016;Molina-Ochoa et al 2003, 2004Murúa, Molina-Ochoa, & Fidalgo 2009;Otim et al 2021;Sagar et al 2022;Serrano-Domínguez et al 2021;Youssef 2021). Of the species recorded overseas, only Cotesia ruficrus (Haliday), Telenomus remus Nixon, and Trichogramma pretiosum Riley are known to already occur in Australia.…”

Section: Introductionmentioning

confidence: 99%

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Hymenopteran parasitoids of fall armyworm (Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)) in Australia, with the description of five new species in the families Braconidae and Eulophidae

Fagan‐Jeffries,

Miles,

Atkin‐Zaldivar

et al. 2024

Austral Entomology

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Fall armyworm, Spodoptera frugiperda (J.E. Smith) is an invasive pest of agricultural crops including sweet corn and maize. The moth was first recorded in Australia in January 2020 and is now considered established in most states and territories, and research is underway to develop management strategies. Extensive rearing of S. frugiperda larvae and eggs occurred from March 2020 to April 2023 to understand the parasitoid complex present in Australia and identify potential biological control agents. We report here on the hymenopteran parasitoids reared during this period, which were identified using a combination of morphology and COI DNA barcoding, and provide images, a key to species, and contextual information to facilitate future research. Twelve species of parasitoids from five families of Hymenoptera are formally reported as parasitising S. frugiperda in Australia. Five species are here described as new: Chelonus patbat Fagan‐Jeffries, sp. nov. (Braconidae), Chelonus trojanus Fagan‐Jeffries, sp. nov. (Braconidae), Coccygidium mellosiheroine Atkin‐Zaldivar & Fagan‐Jeffries, sp. nov. (Braconidae), Coccygidium necatrix Atkin‐Zaldivar & Fagan‐Jeffries, sp. nov. (Braconidae), and Euplectrus frugiperdata Fagan‐Jeffries, sp. nov. (Eulophidae).

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Section: Diagnosismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hymenopteran parasitoids of fall armyworm (Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)) in Australia, with the description of five new species in the families Braconidae and Eulophidae

Fagan‐Jeffries,

Miles,

Atkin‐Zaldivar

et al. 2024

Austral Entomology

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“…Biological control has proven to be an effective strategy for pest control due to its high environmental safety and effectiveness [8,9]. For example, biological control with the use of egg parasitoids has been developed for the management and control of the FAW [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Te. remus, a solitary parasitoid [27], due to its ability of strong parasitism [28], field dispersal [29], host searching [30], and, importantly, exhibiting high egg parasitism rates on superposed layers of the FAW [31], has become the most reported species in studies on FAW management and control [8]. The adult female of Te.…”

Section: Introductionmentioning

confidence: 99%

Field Control Effect of Telenomus remus Nixon and Trichogramma chilonis Ishii Compound Parasitoid Balls against Spodoptera frugiperda (J. E. Smith)

Yuan,

Guo,

2024

Insects

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Although the release of egg parasitoids has proven to be an effective strategy for the control of the fall armyworm (FAW), a single egg parasitoid, however, has exposed some deficiencies in practice, and it is worthwhile to explore whether the combination of multiple parasitoid species released can be used to control FAW by adopting an inter- or intra-specific relationship. In this study, we released compound parasitoid balls of Te. remus and Tr. chilonis in maize fields to explore the effects of combinations in different proportions of these two egg parasitoids on the control of the FAW. The results showed that the release of compound parasitoid balls improved the control effect on the FAW compared to the release of only Te. Remus (100%) and only Tr. Chilonis (100%). The treatments released with compound parasitoid balls significantly increased the egg parasitism rate against the FAW, reduced its populations, and alleviated its damage to maize as compared to the treatment with only Tr. chilonis (100%) released, whereas there was no significant difference in the egg parasitism rate and FAW populations between the treatments with the release of only Te. remus (100%) and that of compound parasitoid balls. Among the compound parasitoid balls with different proportions of egg parasitoids, the treatment with 80% Te. remus and 20% Tr. chilonis and that with 20% Te. remus and 80% Tr. chilonis could still retain more than 50% of the control effect against the FAW after 15 days of release and given the higher cost of production of Te. Remus, our results suggested that the combination of 20% Te. Remus and 80% Tr. Chilonis is a more cost-efficient ratio for the control of the FAW. Our findings may provide a new perspective for the sustainable control of the FAW.

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“…It is critical to apply ecologically sound and highly efficient pest management strategies to control this key pest [2]. Natural enemies, especially parasitoids, were widely employed after the FAW invaded China [3][4][5][6][7]. Telenomus remus Nixon (Hymenoptera: Scelionidae) is one of the most important egg parasitoids of Lepidopteran insects [8,9].…”

Section: Introductionmentioning

confidence: 99%

Dual Effects of Cold Storage and Stored Host Eggs of Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) on the Reproductive Capacity of Telenomus remus Nixon (Hymenoptera: Scelionidae)

Qiu,

Li,

Desneux

et al. 2024

Insects

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Spodoptera frugiperda is the preferred host of the parasitoid Telenomus remus. Cold storage can preserve a sufficient quantity of parasitoids and their hosts in a laboratory colony for mass release. First, the effects of cold storage on the reproductive capacity of T. remus reared on non-stored S. frugiperda eggs and the hatching rate of unparasitized S. frugiperda eggs were investigated. Further, the dual effects of cold storage and stored S. frugiperda eggs on the reproductive capacity of T. remus were studied to determine the optimal storage conditions and the maximal shelf life for both the host and the parasitoid. The emergence rate, the number of adults produced, and the female proportion of T. remus were affected by cold storage factors. Pupae stored at 13 °C for 15 days is optimum for T. remus reared on non-stored S. frugiperda eggs. Spodoptera frugiperda eggs could only be stored at 10 °C for five days to be suitable for rearing T. remus. The optimum cold storage conditions for T. remus parasitizing stored eggs were 7 °C for 5 days in the larval stage. The maximal shelf lives of T. remus parasitizing cold-stored S. frugiperda eggs were 10 days. Cold storage affected the hatching rate of S. frugiperda eggs, thereby further affecting the reproductive capacity of T. remus. The findings suggest that different storage conditions should be used when mass-rearing T. remus on stored and non-stored eggs. Telenomus remus should be reproduced using fresh laid S. frugiperda eggs for maximum shelf life.

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Current status of the biological control of the fall armyworm Spodoptera frugiperda by egg parasitoids

Cited by 13 publications

References 173 publications

Hymenopteran parasitoids of fall armyworm (Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)) in Australia, with the description of five new species in the families Braconidae and Eulophidae

Hymenopteran parasitoids of fall armyworm (Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)) in Australia, with the description of five new species in the families Braconidae and Eulophidae

Field Control Effect of Telenomus remus Nixon and Trichogramma chilonis Ishii Compound Parasitoid Balls against Spodoptera frugiperda (J. E. Smith)

Dual Effects of Cold Storage and Stored Host Eggs of Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) on the Reproductive Capacity of Telenomus remus Nixon (Hymenoptera: Scelionidae)

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