scholarly journals Genetic Characterization of Fall Armyworm (Lepidoptera: Noctuidae) Host Strains in Argentina

2012 ◽  
Vol 105 (2) ◽  
pp. 418-428 ◽  
Author(s):  
Rodney N. Nagoshi ◽  
M. Gabriela Murúa ◽  
Mirian Hay-Roe ◽  
M. Laura Juárez ◽  
Eduardo Willink ◽  
...  
Keyword(s):  
Genetic Characterization ◽  
Fall Armyworm ◽  
Lepidoptera Noctuidae ◽  
Host Strains

scholarly journals Isolation and DNA Barcode Characterization of a PermanentTelenomus(Hymenoptera: Platygastridae) Population in Florida That Targets Fall Armyworm (Lepidoptera: Noctuidae)

2015 ◽  
Vol 108 (5) ◽  
pp. 729-735 ◽  
Author(s):  
Mirian M. Hay-Roe ◽  
Rodney N. Nagoshi ◽  
Robert L. Meagher ◽  
Myriam Arias De Lopez ◽  
Rogelio Trabanino
Keyword(s):  
Dna Barcode ◽  
Fall Armyworm ◽  
Lepidoptera Noctuidae

Virulence and genetic characterization of six baculovirus strains isolated from different populations of Spodoptera frugiperda (Lepidoptera: Noctuidae)

2022 ◽  
Vol 204 (1) ◽  
Author(s):  
Ingrid Zanella-Saenz ◽  
Elisabeth A. Herniou ◽  
Jorge E. Ibarra ◽  
Ilse Alejandra Huerta-Arredondo ◽  
Ma. Cristina Del Rincón-Castro
Keyword(s):  
Spodoptera Frugiperda ◽  
Genetic Characterization ◽  
Different Populations ◽  
Lepidoptera Noctuidae

scholarly journals Genetic characterization of fall armyworm infesting South Africa and India indicate recent introduction from a common source population

PLoS ONE ◽  
2019 ◽  
Vol 14 (5) ◽  
pp. e0217755 ◽  
Author(s):  
Rodney N. Nagoshi ◽  
Isabel Dhanani ◽  
R. Asokan ◽  
H. M. Mahadevaswamy ◽  
Chicknayakanahalli M. Kalleshwaraswamy ◽  
...  
Keyword(s):  
South Africa ◽  
Genetic Characterization ◽  
Fall Armyworm ◽  
Common Source ◽  
Source Population ◽  
Recent Introduction

scholarly journals Assessing the Use of Wing Morphometrics to Identify Fall Armyworm (Lepidoptera: Noctuidae) Host Strains in Field Collections

2019 ◽  
Vol 113 (2) ◽  
pp. 800-807
Author(s):  
Kira L Nagoshi ◽  
Sandra A Allan ◽  
Robert L Meagher
Keyword(s):  
Host Plants ◽  
Strain Differences ◽  
Fall Armyworm ◽  
Growth Patterns ◽  
Western Hemisphere ◽  
Anatomical Landmarks ◽  
Wing Morphology ◽  
Linear Discriminant ◽  
Lepidoptera Noctuidae ◽  
Host Strains

Abstract The fall armyworm (Spodoptera frugiperda) (J. E. Smith) (Lepidoptera: Noctuidae), a major agricultural pest in the Western Hemisphere, has recently become established in Africa and Asia. This highly polyphagous species has potential to economically harm multiple crops. Contributing to this host range are two fall armyworm populations historically called ‘host strains’ that differ in host specificity. Understanding behaviors of the two strains is crucial to effective management of this pest. A major difficulty in such studies is that strains have long been considered morphologically indistinguishable, with molecular markers the only reliable means of identification. However, studies of fall armyworm in Colombia reported strain differences in wing morphology sufficiently large to potentially provide a more economical alternative method to determine strain. This study tested whether a similar phenotypic difference was present in Florida populations using geometric morphometric analysis of 15 anatomical landmarks on forewings of 182 specimens from three habitats associated with different host plants. Principle component and linear discriminant analyses identified significant differences in wing size and shape in comparison of strains from different habitats, but not between strains within the same habitat. Data indicate that apparent strain distinctions in wing phenotype are most likely a secondary consequence of differences in developmental growth patterns on different host plants combined with strain-biased host choice. Furthermore, Florida specimens showed much larger phenotypic overlap than observed for strains from Colombia. Together these findings suggest that wing morphology is probably not a reliable indicator of strain identity in field populations where different host plants are available.

scholarly journals The genetic characterization of fall armyworm populations in Ecuador and its implications to migration and pest management in the northern regions of South America

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0236759
Author(s):  
Rodney N. Nagoshi ◽  
Ernesto Cañarte ◽  
Bernardo Navarrete ◽  
Jimmy Pico ◽  
Catalina Bravo ◽  
...  
Keyword(s):  
South America ◽  
Pest Management ◽  
Genetic Characterization ◽  
Fall Armyworm ◽  
Northern Regions

Oviposition Choice of Two Fall Armyworm (Lepidoptera: Noctuidae) Host Strains

2011 ◽  
Vol 24 (5) ◽  
pp. 337-347 ◽  
Author(s):  
Robert L. Meagher ◽  
Rodney N. Nagoshi ◽  
Charles J. Stuhl
Keyword(s):  
Fall Armyworm ◽  
Oviposition Choice ◽  
Lepidoptera Noctuidae ◽  
Host Strains
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