Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences
Spodoptera frugiperda, the fall armyworm, is a major economic pest throughout the Western Hemisphere of corn (maize), cotton, sorghum, and a variety of agricultural grasses and vegetable crops. Studies in the United States, the Caribbean, and Brazil demonstrated the existence of two subpopulations (...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00220493_v108_n5_p2305_Murua |
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todo:paper_00220493_v108_n5_p2305_Murua2023-10-03T14:25:41Z Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences Murúa, M.G. Nagoshi, R.N. Santos, D.A.D. Hay-Roe, M.M. Meagher, R.L. Vilardi, J.C. Agricultural entomology Crop protection Ecology & population biology Pest management Population genetics cytochrome c oxidase insect protein triosephosphate isomerase animal Argentina crop enzymology feeding behavior genetics growth, development and aging herbivory larva metabolism physiology species difference Spodoptera Animals Argentina Crops, Agricultural Electron Transport Complex IV Feeding Behavior Herbivory Insect Proteins Larva Species Specificity Spodoptera Triose-Phosphate Isomerase Spodoptera frugiperda, the fall armyworm, is a major economic pest throughout the Western Hemisphere of corn (maize), cotton, sorghum, and a variety of agricultural grasses and vegetable crops. Studies in the United States, the Caribbean, and Brazil demonstrated the existence of two subpopulations (previously designated "host strains") that differ in their choice of plant host. Specifically, the corn strain is preferentially found in corn and sorghum, while the rice strain is dominant in rice, turf grass, and alfalfa. However, inconsistent results were reported in surveys of fall armyworm in Argentina, with some indicating that the host plant preferences of the two strains might be compromised or even nonexistent. If correct, this would complicate efforts to control this pest by considerably expanding the range of habitats that would have to be considered as potential sources for fall armyworm infestations in specific crops. A reexamination of Argentine fall armyworm, this time with field collections rather than the laboratory colonies used in previous studies, confirmed the existence of the two strains and their host preferences. Specifically, the corn strain was consistently the majority population infesting corn and was usually so in sorghum, while the rice strain was predominant in pasture/turf grasses and alfalfa. The one outlier was a collection from rice, which had a corn strain majority. Overall, the data were generally consistent with strain behaviors observed in other areas of the Western Hemisphere. © Published by Oxford University Press on behalf of Entomological Society of America 2015. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00220493_v108_n5_p2305_Murua |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Agricultural entomology Crop protection Ecology & population biology Pest management Population genetics cytochrome c oxidase insect protein triosephosphate isomerase animal Argentina crop enzymology feeding behavior genetics growth, development and aging herbivory larva metabolism physiology species difference Spodoptera Animals Argentina Crops, Agricultural Electron Transport Complex IV Feeding Behavior Herbivory Insect Proteins Larva Species Specificity Spodoptera Triose-Phosphate Isomerase |
| spellingShingle |
Agricultural entomology Crop protection Ecology & population biology Pest management Population genetics cytochrome c oxidase insect protein triosephosphate isomerase animal Argentina crop enzymology feeding behavior genetics growth, development and aging herbivory larva metabolism physiology species difference Spodoptera Animals Argentina Crops, Agricultural Electron Transport Complex IV Feeding Behavior Herbivory Insect Proteins Larva Species Specificity Spodoptera Triose-Phosphate Isomerase Murúa, M.G. Nagoshi, R.N. Santos, D.A.D. Hay-Roe, M.M. Meagher, R.L. Vilardi, J.C. Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences |
| topic_facet |
Agricultural entomology Crop protection Ecology & population biology Pest management Population genetics cytochrome c oxidase insect protein triosephosphate isomerase animal Argentina crop enzymology feeding behavior genetics growth, development and aging herbivory larva metabolism physiology species difference Spodoptera Animals Argentina Crops, Agricultural Electron Transport Complex IV Feeding Behavior Herbivory Insect Proteins Larva Species Specificity Spodoptera Triose-Phosphate Isomerase |
| description |
Spodoptera frugiperda, the fall armyworm, is a major economic pest throughout the Western Hemisphere of corn (maize), cotton, sorghum, and a variety of agricultural grasses and vegetable crops. Studies in the United States, the Caribbean, and Brazil demonstrated the existence of two subpopulations (previously designated "host strains") that differ in their choice of plant host. Specifically, the corn strain is preferentially found in corn and sorghum, while the rice strain is dominant in rice, turf grass, and alfalfa. However, inconsistent results were reported in surveys of fall armyworm in Argentina, with some indicating that the host plant preferences of the two strains might be compromised or even nonexistent. If correct, this would complicate efforts to control this pest by considerably expanding the range of habitats that would have to be considered as potential sources for fall armyworm infestations in specific crops. A reexamination of Argentine fall armyworm, this time with field collections rather than the laboratory colonies used in previous studies, confirmed the existence of the two strains and their host preferences. Specifically, the corn strain was consistently the majority population infesting corn and was usually so in sorghum, while the rice strain was predominant in pasture/turf grasses and alfalfa. The one outlier was a collection from rice, which had a corn strain majority. Overall, the data were generally consistent with strain behaviors observed in other areas of the Western Hemisphere. © Published by Oxford University Press on behalf of Entomological Society of America 2015. |
| format |
JOUR |
| author |
Murúa, M.G. Nagoshi, R.N. Santos, D.A.D. Hay-Roe, M.M. Meagher, R.L. Vilardi, J.C. |
| author_facet |
Murúa, M.G. Nagoshi, R.N. Santos, D.A.D. Hay-Roe, M.M. Meagher, R.L. Vilardi, J.C. |
| author_sort |
Murúa, M.G. |
| title |
Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences |
| title_short |
Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences |
| title_full |
Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences |
| title_fullStr |
Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences |
| title_full_unstemmed |
Demonstration using field collections that Argentina fall armyworm populations exhibit strain-specific host plant preferences |
| title_sort |
demonstration using field collections that argentina fall armyworm populations exhibit strain-specific host plant preferences |
| url |
http://hdl.handle.net/20.500.12110/paper_00220493_v108_n5_p2305_Murua |
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