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No. de sistema: 000007599

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008 _ _ 160831m20169999mdubr^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-cp
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245 0 0 a| Attraction, feeding preference, and performance of Spodoptera frugiperda Larvae (Lepidoptera: Noctuidae) reared on two varieties of maize
506 _ _ a| Acceso electrónico sólo para usuarios de ECOSUR
520 1 _ a| The fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is an economically important pest of maize and other crops in the Americas. Studies suggest that modern varieties of maize lost some of their natural defense mechanisms against herbivores during domestication and agricultural selection. In the present study, we evaluated the attraction, feeding preference (host fidelity and consumption rate), and performance of S. frugiperda larvae reared on hybrid (Pioneer P4063W) and landrace (Tuxpeño) varieties of maize. We also evaluated the damage caused by S. frugiperda to Pioneer and Tuxpeño maize plants in the field. We found that fifth-instar larvae were more attracted to Pioneer plants than to Tuxpeño plants in a Y-tube olfactometer. Additionally, the fall armyworm larvae showed more fidelity to Pioneer leaves than to Tuxpeño leaves. However, the larval consumption rate was similar for both types of maize plants. The life cycle of S. frugiperda was significantly longer when the larvae were reared on Tuxpeño leaves than on Pioneer leaves. In the field, the Pioneer variety was infested with more S. frugiperda larvae than the Tuxpeño variety. Thus, our results provide evidence that modern varieties of maize may have lost some of their defensive traits during selective breeding.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Spodoptera frugiperda
650 _ 4 a| Maíz
650 _ 4 a| Daños a las plantas
650 _ 4 a| Plagas agrícolas
650 _ 4 a| Relaciones animal-planta
651 _ 4 a| Congregación Reforma, Tapachula (Chiapas, México)
700 1 _ a| De la Rosa Cancino, Wilmar
700 1 _ a| Rojas, Julio C.
e| coaut.
700 1 _ a| Cruz López, Leopoldo Caridad
c| Dr.
e| coaut.
700 1 _ a| Castillo Vera, Alfredo
e| coaut.
n| 7101820030
700 1 _ a| Malo Rivera, Edi Álvaro
c| Doctor
e| coaut.
773 0 _
t| Environmental Entomology
g| Vol. 45, no. 2 (2016), p. 384–389
x| 0046-225X
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Agosto 2016
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
LNG eng
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Attraction, feeding preference, and performance of Spodoptera frugiperda Larvae (Lepidoptera: Noctuidae) reared on two varieties of maize
De la Rosa Cancino, Wilmar (autor)
Rojas, Julio C. (autor)
Cruz López, Leopoldo Caridad (autor)
Castillo Vera, Alfredo (autor)
Malo Rivera, Edi Álvaro (autor)
Nota: Acceso electrónico sólo para usuarios de ECOSUR
Contenido en: Environmental Entomology. Vol. 45, no. 2 (2016), p. 384–389. ISSN: 0046-225X
No. de sistema: 7599
Tipo: - Artículo con arbitraje
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Inglés

"The fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is an economically important pest of maize and other crops in the Americas. Studies suggest that modern varieties of maize lost some of their natural defense mechanisms against herbivores during domestication and agricultural selection. In the present study, we evaluated the attraction, feeding preference (host fidelity and consumption rate), and performance of S. frugiperda larvae reared on hybrid (Pioneer P4063W) and landrace (Tuxpeño) varieties of maize. We also evaluated the damage caused by S. frugiperda to Pioneer and Tuxpeño maize plants in the field. We found that fifth-instar larvae were more attracted to Pioneer plants than to Tuxpeño plants in a Y-tube olfactometer. Additionally, the fall armyworm larvae showed more fidelity to Pioneer leaves than to Tuxpeño leaves. However, the larval consumption rate was similar for both types of maize plants. The life cycle of S. frugiperda was significantly longer when the larvae were reared on Tuxpeño leaves than on Pioneer leaves. In the field, the Pioneer variety was infested with more S. frugiperda larvae than the Tuxpeño variety. Thus, our results provide evidence that modern varieties of maize may have lost some of their defensive traits during selective breeding."


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