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98 results for “Spodoptera frugiperda”
Effects of food plants on life-history traits of the newly invasive fall armyworm Spodoptera frugiperda
<p><strong>Background:</strong>The fall armyworm (FAW) <em>Spodoptera frugiperda</em> (J. E. Smith) (Lepidoptera; Noctuidae) has invaded Jiangxi Province, Southeast China for the past three years. Although the FAW displays a wide host range, its main host plants in Jiangxi Province is field corn. Understanding the population dynamics of the FAW on different host plants is critical for developing an appropriate control strategy.</p> <p><strong>Objectives: </strong>This study investigated the effects of food plants (corn, peanut, soybean and sugarcane) on life-history traits of FAW and tested the leaf contents of the total flavonoids, reducing sugars, sucrose and C/N ratio of these host plants.</p> <p><strong>Results: </strong>We found that the FAW fed on corn leaves exhibited significantly shorter larval and pupal development times, larger body weight, higher growth rate, lower weight loss, smaller sexual size dimorphism, shorter preoviposition period and higher fecundity than those fed on peanut, soybean and sugarcane leaves. The FAW showed a protogyny phenomenon because the pupal development stage was significantly longer in males than females. Food plants changed the relationships between larval development time and pupal weight and between fecundity and longevity. The corn leaves showed significantly higher contents of reducing sugars and sucrose, lower content of the total flavonoids and a moderate C/N ratio compared with the other leaves, suggesting that the corn leaf tissues are more nutritious.</p> <p><strong>Conclusions: </strong>Our results provide the most comprehensive information about the life-history traits of this newly invasive pest. These findings may help us understand why the FAW mainly infests corn plants and may be critical for the development of strategies to predict infestation levels.</p>
Development time and fecundity of Spodoptera frugiperda fed on different host plant
<p>Data set of development time and fecundity of Spodoptera frugiperda fed on different host plant in Indonesia</p>
Fitness and cold tolerance of Spodoptera frugiperda fed on corn and two winter crops(Original data)
<p>Fall armyworm (FAW) <em>Spodoptera frugiperda</em> is a major migratory and polyphagous pest. Overwintering, migrating and colonizing characters of FAW are closely related to vegetation and host adaptation. In this study, oviposition preference, feeding preference, fitness and cold tolerance of FAW fed on spring & summer crop (corn) and two winter crops (cabbage, <em>Brassica campestris </em>and rape,<em> B. napus</em>). We observed that FAW could complete their life cycle by feeding cabbage and rape, although fitness was not as good as corn. FAW fed on cabbage had higher survival, pupal weight, and host suitability index than rape while larvae preferred to feed on rape leaves and females preferred to lay eggs on rape plants. In addition, FAW larvae fed on cabbage had the shortest recovery time from chill coma compared to corn and rape, indicating that cold tolerance of FAW larvae was improved by feeding on cabbage. Consequently, cabbage could be an ideal host for FAW which needed to survive and reproduction in winter. These results improve our understanding of host selection and adaption of FAW, as well as lay a foundation for the prediction of FAW overwintering.</p>
The new association between the invasive pest Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) and local parasitoids in Special Region Yogyakarta, Indonesia
<p>Database of parasitoid associated with FAW Spodoptera frugiperda in Yogyakarta, Indonesia</p>
Chemotactic responses and parasitism of Trichogramma pretiosum after successive generations in Spodoptera frugiperda.
<p>Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) is an important parasitoid of lepidopteran pests. Its parasitism success is related to its foraging behavior, mediated by kairomones from its hosts. We aimed to evaluate the chemotactic responses and parasitism of T. pretiosum from Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae) eggs as well as the parasitoid maintained for three generations in Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) eggs. Chemotactic responses of T. pretiosum from both hosts were evaluated in a dual choice olfactometer. Females were submitted to a choice between washed vs. unwashed eggs of E. kuehniella or S. frugiperda, as well as to unwashed eggs of both hosts. Egg extracts of both hosts were also contrasted with hexane and with each other. Parasitism of T. pretiosum exposed to eggs of the two species was also evaluated. Females from E. kuehniella were more attracted to odors from eggs of this host whenever it was present. Third generation parasitoids from S. frugiperda eggs were more attracted to eggs and egg extract of S. frugiperda than to those from E. kuehniella. The highest number of parasitized eggs and emerged parasitoids in S. frugiperda was observed in parasitoids coming from the third generation in this host. Therefore, imaginal conditioning could be an alternative to be considered for T. pretiosum learning before releasing, possibly optimizing its search and parasitism process in S. frugiperda eggs.</p>
Data from: A Z-linked sterility locus causes sexual abstinence in hybrid females and facilitates speciation in Spodoptera frugiperda
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Data from: Patterns of genomic and allochronic strain divergence in the fall armyworm, Spodoptera frugiperda
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Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa
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Modulation of DNA methyltransferases (DNMTs) in Spodoptera frugiperda (Sf9) cells following AcMNPV infection and its effects on the virus-cell interaction
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Supplementary material 2 from: Early R, González-Moreno P, Murphy ST, Day R (2018) Forecasting the global extent of invasion of the cereal pest Spodoptera frugiperda, the fall armyworm. NeoBiota 40: 25-50. https://doi.org/10.3897/neobiota.40.28165
Table S2. Distribution data from the Americas :
Figure 2 from: Liao Y-L, Yang B, Xu M-F, Lin W, Wang D-S, Chen K-W, Chen H-Y (2019) First report of Telenomus remus parasitizing Spodoptera frugiperda and its field parasitism in southern China. In: Talamas E (Eds) Advances in the Systematics of Platygastroidea II. Journal of Hymenoptera Research 73: 95-102. https://doi.org/10.3897/jhr.73.39136
Figure 2 Phylogenetic analysis of Telenomus remus and related species by maximum likelihood method based on COI sequences. The six sequences generated from this study are indicated with codes and GenBank accession numbers (see Table 1). Boostrap values above 50 indicated on branches.
Figure 1 from: Liao Y-L, Yang B, Xu M-F, Lin W, Wang D-S, Chen K-W, Chen H-Y (2019) First report of Telenomus remus parasitizing Spodoptera frugiperda and its field parasitism in southern China. In: Talamas E (Eds) Advances in the Systematics of Platygastroidea II. Journal of Hymenoptera Research 73: 95-102. https://doi.org/10.3897/jhr.73.39136
Figure 1 Telenomus remus Nixon. A Holotype (NHMUK010576395), female, lateral habitus B female (SCAU 3040967), lateral habitus C male (SCAU 3040968), lateral habitus D a female on egg mass of Spodoptera frugiperda.
Supplementary material 1 from: Caniço A, Mexia A, Santos L (2021) Farmers' knowledge, perception and management practices of fall armyworm (Spodoptera frugiperda Smith) in Manica province, Mozambique. NeoBiota 68: 127-143. https://doi.org/10.3897/neobiota.68.62844
Questionnaire used to interview farmers
Figure 3 in Multiple resistance to primary pests of grain sorghum hybrids: Spodoptera frugiperda (Lepidoptera: Noctuidae), Diatraea saccharalis (Lepidoptera: Crambidae), and Diceraeus melacanthus (Hemiptera: Pentatomidae)
Figure 3 Dendrogram of cluster analysis based on the Euclidean distance and grouping by UPGMA regarding the number of healthy and bored internodes, gallery length, and infestation intensity by Diatraea saccharalis in grain sorghum hybrids.
Figure 4 in Multiple resistance to primary pests of grain sorghum hybrids: Spodoptera frugiperda (Lepidoptera: Noctuidae), Diatraea saccharalis (Lepidoptera: Crambidae), and Diceraeus melacanthus (Hemiptera: Pentatomidae)
Figure 4 Dendrogram of cluster analysis based on the Euclidean distance and grouping by UPGMA regarding scores of damage by Diceraeus melacanthus in grain sorghum hybrids at 12, 19, and 26 days after infestation.
Differential transcriptome analysis reveals genes related to low- and high-temperature stress in the fall armyworm (Spodoptera frugiperda)
GEO Series GSE175545. Spodoptera frugiperda. 3 samples. Type: Expression profiling by high throughput sequencing.
RNA-Seq of the Spodoptera frugiperda ascovirus-1a (SfAV-1a) infecting 3rd instar Spodoptera frugiperda caterpillars in vivo
GEO Series GSE98382. Spodoptera frugiperda ascovirus 1a. 14 samples. Type: Expression profiling by high throughput sequencing.
Transcriptome-wide analysis of N6-methyladenosine modification in the embryos of Spodoptera frugiperda
GEO Series GSE208603. Spodoptera frugiperda. 12 samples. Type: Expression profiling by high throughput sequencing.
Antibiotics exposure impacts the gut microbiota and influences energy and metabolic homeostasis in Spodoptera frugiperda
GEO Series GSE175476. Spodoptera frugiperda; insect gut metagenome. 12 samples. Type: Expression profiling by high throughput sequencing; Other.
MicroRNAome of Spodoptera frugiperda cells (Sf9) and its alteration following baculovirus infection
GEO Series GSE60064. Spodoptera frugiperda. 3 samples. Type: Non-coding RNA profiling by high throughput sequencing.
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