scholarly journals Peer Review #2 of "Diversity of fall armyworm, Spodoptera frugiperda and their gut bacterial community in Kenya (v0.1)"

2020 ◽  
Keyword(s):  
Bacterial Community ◽  
Peer Review ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm

scholarly journals Host-Adapted Strains of Spodoptera frugiperda Hold and Share a Core Microbial Community Across the Western Hemisphere

2021 ◽  
Author(s):  
Nathalia C. Oliveira ◽  
Pedro A.P. Rodrigues ◽  
Fernando L. Cônsoli
Keyword(s):  
Bacterial Community ◽  
Geographical Distribution ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Western Hemisphere ◽  
Symbiotic Relationships ◽  
Eastern Hemisphere ◽  
Additional Support ◽  
Generation Sequencing ◽  
Host Strains

AbstractThe fall armyworm Spodoptera frugiperda is an important polyphagous agricultural pest in the Western Hemisphere and currently invasive to countries of the Eastern Hemisphere. This species has two host-adapted strains named “rice” and “corn” strains. Our goal was to identify the occurrence of core members in the gut bacterial community of Fall armyworm larvae from distinct geographical distribution and/or host strain. We used next-generation sequencing to identify the microbial communities of S. frugiperda from corn fields in Brazil, Colombia, Mexico, Panama, Paraguay, and Peru, and rice fields from Panama. The larval gut microbiota of S. frugiperda larvae did not differ between the host strains neither was it affected by the geographical distribution of the populations investigated. Our findings provide additional support for Enterococcus and Pseudomonas as core members of the bacterial community associated with the larval gut of S. frugiperda, regardless of the site of collection or strain, suggesting that these bacteria may maintain true symbiotic relationships with the fall armyworm. Further investigations are required for a deeper understanding of the nature of this relationship.

scholarly journals Insecticide resistance monitoring for the invasive populations of fall armyworm, Spodoptera frugiperda in China

2021 ◽  
Vol 20 (3) ◽  
pp. 783-791 ◽  
Author(s):  
Dan-dan ZHANG ◽  
Yu-tao XIAO ◽  
Peng-jun XU ◽  
Xian-ming YANG ◽  
Qiu-lin WU ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Resistance Monitoring

scholarly journals Effectiveness of Push–Pull Systems to Fall Armyworm (Spodoptera frugiperda) Management in Maize Crops in Morelos, Mexico

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 298
Author(s):  
Ouorou Ganni Mariel Guera ◽  
Federico Castrejón-Ayala ◽  
Norma Robledo ◽  
Alfredo Jiménez-Pérez ◽  
Georgina Sánchez-Rivera ◽  
...  
Keyword(s):  
Spodoptera Frugiperda ◽  
Insect Pest ◽  
Fall Armyworm ◽  
Maize Yield ◽  
Morphological Development ◽  
Main Method ◽  
Development Of Resistance ◽  
Pull Systems ◽  
Complex Scenario ◽  
Block Experiment

Chemical control is the main method used to combat fall armyworm in maize crops. However, its indiscriminate use usually leads to a more complex scenario characterized by loss of its effectiveness due to the development of resistance of the insect pest, emergence of secondary pests, and reduction of the populations of natural enemies. For this reason, efforts to develop strategies for agroecological pest management such as Push–Pull are increasingly growing. In this context, the present study was carried out to evaluate field effectiveness of Push–Pull systems for S. frugiperda management in maize crops in Morelos, Mexico. In a randomized block experiment, the incidence and severity of S. frugiperda, the development and yield of maize were evaluated in nine Push–Pull systems and a maize monoculture. The Push–Pull systems presented incidence/severity values lower than those of the monoculture. Morphological development and maize yield in the latter were lower than those of most Push–Pull systems. Mombasa—D. ambrosioides, Mulato II—T. erecta, Mulato II—C. juncea, Tanzania—T. erecta and Tanzania—D. ambrosioides systems presented higher yields than those of monocultures.

scholarly journals Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China

2021 ◽  
Vol 20 (3) ◽  
pp. 764-771
Author(s):  
Dan-dan ZHANG ◽  
Sheng-yuan ZHAO ◽  
Qiu-lin WU ◽  
Yu-yan LI ◽  
Kong-ming WU
Keyword(s):  
Spodoptera Frugiperda ◽  
Cold Hardiness ◽  
Fall Armyworm

scholarly journals Flight activity promotes reproductive processes in the fall armyworm, Spodoptera frugiperda

2021 ◽  
Vol 20 (3) ◽  
pp. 727-735 ◽  
Author(s):  
Shi-shuai GE ◽  
Wei HE ◽  
Li-mei HE ◽  
Ran YAN ◽  
Hao-wen ZHANG ◽  
...  
Keyword(s):  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Flight Activity ◽  
Reproductive Processes

scholarly journals Impact of an Exotic Invasive Pest, Spodoptera frugiperda (Lepidoptera: Noctuidae), on Resident Communities of Pest and Natural Enemies in Maize Fields in Kenya

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1074
Author(s):  
Bonoukpoè Mawuko Sokame ◽  
Boaz Musyoka ◽  
Julius Obonyo ◽  
François Rebaudo ◽  
Elfatih M. Abdel-Rahman ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Invasive Pest ◽  
Growth Stages ◽  
Insect Communities ◽  
Exotic Invasive Species ◽  
Before And After ◽  
Exotic Invasive ◽  
Lepidoptera Noctuidae

The interactions among insect communities influence the composition of pest complexes that attack crops and, in parallel, their natural enemies, which regulate their abundance. The lepidopteran stemborers have been the major maize pests in Kenya. Their population has been regulated by natural enemies, mostly parasitoids, some of which have been used for biological control. It is not known how a new exotic invasive species, such as the fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera, Noctuidae), may affect the abundance and parasitism of the resident stemborers. For this reason, pest and parasitism surveys have been conducted, before and after the FAW invaded Kenya, in maize fields in 40 localities across 6 agroecological zones (AEZs) during the maize-growing season, as well as at 3 different plant growth stages (pre-tasseling, reproductive, and senescence stages) in 2 elevations at mid-altitude, where all maize stemborer species used to occur together. Results indicated that the introduction of the FAW significantly correlated with the reduction of the abundance of the resident communities of maize stemborers and parasitoids in maize fields; moreover, the decrease of stemborer density after the arrival of FAW occurred mostly at both reproductive and senescent maize stages. It also suggests a possible displacement of stemborers by FAW elsewhere; for example, to other cereals. However, since this study was conducted only three years after the introduction of the FAW, further studies will need to be conducted to confirm such displacements.

Interaction between Manduca sexta allatotropin and Manduca sexta allatostatin in the fall armyworm Spodoptera frugiperda

2000 ◽  
Vol 30 (8-9) ◽  
pp. 719-727 ◽  
Author(s):  
Uwe Oeh ◽  
Matthias W Lorenz ◽  
Hubert Dyker ◽  
Peter Lösel ◽  
Klaus H Hoffmann
Keyword(s):  
Manduca Sexta ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm
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