Occurrence of Entomopathogenic Fungi and Parasitic Nematodes on<i>Spodoptera frugiperda</i>(Lepidoptera: Noctuidae) Larvae Collected in Central Chiapas, México

Ruiz-Nájera, Ramiro Eleazar; Ruiz-Estudillo, Ramiro A.; Sanchez–Yáñez, Juan Manuel; Molina-Ochoa, Jaime; Skoda, S.; Coutiño-Ruiz, Roberto; Pinto-Ruíz, René; Guevara-Hernández, Francisco; Foster, John E.

doi:10.1653/024.096.0215

Cited by 25 publications

(11 citation statements)

References 17 publications

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“…Consequently, due to its toxic effect on Spodoptera we considered this mould as transient, but it could also be indigenous and further analyses are needed to elucidate this point. On the other hand, a study that determined the occurrence of parasitic nematodes in S. frugiperda larvae collected from corn fields in Mexico found that a mermithid nematode ( Hexamermis sp., probably albicans ) caused a high mortality rate (Ruiz‐Nájera et al, ), and another study found that Hexamermis hortensis parasitizes S. frugiperda larvae in Argentina (Camino & Stock, ). Moreover, entomopathogenic nematodes frequently affect fall armyworm larvae in Northern Argentina (E.G.…”

Section: Discussionmentioning

confidence: 99%

Gut microbiota of Spodoptera frugiperda (J.E. Smith) larvae as revealed by metatranscriptomic analysis

Rozadilla

Cabrera

Virla

et al. 2020

J Applied Entomology

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The invasive fall armyworm, Spodoptera frugiperda (J.E. Smith; Lepidoptera: Noctuidae), is considered one of the most harmful pests in corn, rice and cotton crops and has developed resistance to the most widespread methods used to control it, chemical insecticides and transgenic crops based on Bt toxins. On the other hand, gut microbiota plays an important role in the insect's fitness, and metatranscriptomic analyses of the insect host are an invaluable tool for identifying new pest control targets. Notwithstanding, there are extremely few reports on the functionally active profile of the gut microbiota in insects, especially in lepidopterans. Moreover, most studies have only described the bacterial community even though all the components of the microbiota, Bacteria, Archaea, fungi, protozoa and viruses, influence different physiological aspects of the insect host. This is the first time an unbiased and comprehensive metatranscriptomic approach has been used to describe the taxonomic and functional profile of the gut microbiota of S. frugiperda larvae, both bacterial and non‐bacterial. We identified novel and very active components which were putatively playing an important nutritional role, such as ammonia‐oxidizing Archaea and Bacteria, and a xylan‐ and hemicellulose‐degrading Actinobacteria. This analysis also allowed us to identify potential biocontrol agents.

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Section: Discussionmentioning

confidence: 99%

Gut microbiota of Spodoptera frugiperda (J.E. Smith) larvae as revealed by metatranscriptomic analysis

Rozadilla

Cabrera

Virla

et al. 2020

J Applied Entomology

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“…The reported natural enemies include fungi [ 22 , 23 ], bacteria [ 24 ], viruses and Microsporidia [ 24 ], parasitoids [ 21 ], and entomopathogenic nematodes [ 23 ]. In the Americas, FAW is attacked by an assemblage of parasitoids (approximately 150 species) [ 22 , 23 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. Across the invasive range of FAW, several parasitoids have been identified (e.g., China [ 34 ]; India [ 35 , 36 ]).…”

Section: Introductionmentioning

confidence: 99%

Parasitoid Distribution and Parasitism of the Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Different Maize Producing Regions of Uganda

Otim

Aropet

Opio

et al. 2021

Insects

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The fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) has successfully invaded Africa, where it has significantly impacted maize and sorghum production. Management of FAW in Africa predominantly relies on synthetic insecticides, which are expensive, and negatively impact the environment and beneficial insects. We, therefore, conducted field surveys in Uganda in 2017 and 2019 to identify egg and larval parasitoids of FAW for possible use in integrated pest management (IPM) programs. Parasitoids were identified by their mitochondrial DNA cytochrome c oxidase subunit 1 (mtCOI) gene sequences. We identified 13 parasitoid species belonging to three families of Hymenoptera: Platygastridae, Braconidae and Ichneumonidae, as well as one Dipteran family (Tachinidae). Coccygidium spp. and Chelonus bifoveolatus were the most abundant and widely distributed parasitoids. Overall, parasitism averaged 9.2% and ranged from 3.1% to 50% in 2017, and 0.8% to 33% in 2019. Parasitism by Sturmiopsis parasitica, Diolcogaster sp., and Cotesia flavipes on FAW in maize crops are reported for the first time. Our results suggest high biological diversity of FAW parasitoids, which should be exploited in the IPM of the FAW in Uganda.

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“…For example, Oliveira et al [ 2 ] studied the fungal diversity found on Olive Moths ( Prays oleae ). Studies done by Ruiz-Najera et al [ 3 ] and Rios-Velasco et al [ 4 ] investigated the entomopathogenic fungi that are associated with fall armyworm larvae ( Spodoptera fragiperda ). A large amount of studies have been done on the fungi associated with Culicidae larvae [ 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Microfungi Associated with Pteroptyx bearni (Coleoptera: Lampyridae) Eggs and Larvae from Kawang River, Sabah (Northern Borneo)

Foo

Seelan

Dawood

2017

Insects

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Overlooking the importance of insect disease can have disastrous effects on insect conservation. This study reported the microfungi that infect Pteroptyx bearni eggs and larvae during ex-situ rearing project. Two different species of microfungi that infected the firefly’s immature life stages were isolated and identified. Penicillium citrinum infected the firefly’s eggs while Trichoderma harzianum infected the firefly during the larval stage. Both microfungi species caused absolute mortality once infection was observed; out of 244 individual eggs collected, 75 eggs (32.5%) were infected by Penicillium citrinum. All 13 larvae that hatched from the uninfected eggs were infected by Trichoderma harzianum. This study was the first to document the infection of Pteroptyx bearni’s eggs and larvae by Penicillium citrinum and Trichoderma harzianum.

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Occurrence of Entomopathogenic Fungi and Parasitic Nematodes onSpodoptera frugiperda(Lepidoptera: Noctuidae) Larvae Collected in Central Chiapas, México

Cited by 25 publications

References 17 publications

Gut microbiota of Spodoptera frugiperda (J.E. Smith) larvae as revealed by metatranscriptomic analysis

Gut microbiota of Spodoptera frugiperda (J.E. Smith) larvae as revealed by metatranscriptomic analysis

Parasitoid Distribution and Parasitism of the Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Different Maize Producing Regions of Uganda

Microfungi Associated with Pteroptyx bearni (Coleoptera: Lampyridae) Eggs and Larvae from Kawang River, Sabah (Northern Borneo)

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