Parasitoid–Pathogen–Pest Interactions of Chelonus insularis, Campoletis sonorensis, and a Nucleopolyhedrovirus in Spodoptera frugiperda Larvae
نویسندگان
چکیده
*Laboratorio de Entomologı́a Agrı́cola y Patologı́a de Insectos, Departamento de Producción Agraria, Universidad Pública de Navarra, 31006 Pamplona, Spain; †ECOSUR, AP 36, Tapachula 30700, Chiapas, Mexico; ‡School of Biological Sciences, University of Southampton, Southampton, SO16 7PX, United Kingdom; and §Departamento de Protección Vegetal, Escuela Agrı́cola Panamericana, Apartado Postal 93, El Zamorano, Honduras
منابع مشابه
Isolation and characterization of polymorphic microsatellite loci in two primary parasitoids of the noctuid Spodoptera frugiperda: Chelonus insularis and Campoletis sonorensis (Hymenoptera).
Fifteen and 13 microsatellite loci were isolated, respectively, from Campoletis sonorensis Cameron and from Chelonus insularis Cresson. These two parasitic Hymenoptera are primary parasitoids of Lepidoptera in North, Central and South America, including the important agricultural pest Spodoptera frugiperda. Allelic diversity and heterozygosity were quantified in samples from Mexico. Each locus ...
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Plant chemistry can strongly influence interactions between herbivores and their natural enemies, either by providing volatile compounds that serve as foraging cues for parasitoids or predators, or by affecting the quality of herbivores as hosts or prey. Through these effects plants may influence parasitoid population genetic structure. We tested for a possible specialization on specific crop p...
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To develop a better understanding of the natural distribution of the fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), and to update the knowledge of the incidence of its complex of parasitoids. S. frugiperda, samplings in whorl-stage corn were carried out in provinces of Argentina from 1999 to 2003. S. frugiperda larvae were collected from corn in localities of the provinc...
متن کاملEffect of parasitism on a nucleopolyhedrovirus amplified in Spodoptera frugiperda larvae parasitized by Campoletis sonorensis
We evaluated the consequences of parasitism by the solitary ichneumonid endoparasitoid Campoletis sonorensis (Cameron) towards the replication, genetic composition and virulence of a nucleopolyhedrovirus (Baculoviridae) originating from Spodoptera frugiperda (J. E. Smith) larvae. Parasitism by C. sonorensis and viral infection of third and fourth instar S. frugiperda larvae resulted in reduced ...
متن کاملBIOLOGICAL CONTROL Infl uence of Parasitism by Chelonus insularis Cresson (Hymenoptera: Braconidae) on the Susceptibility of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) to Insecticides
The egg-larval parasitoid Chelonus insularis Cresson is a key parasitoid of the fall armyworm Spodoptera frugiperda (J. E. Smith) during the second fi eld generation in the upper Magdalena River Basin, Colombia. In spite of selection pressure, the higher susceptibility of the second generation fall armyworm larvae to insecticides, compared with that of the fi rst generation, suggests that the p...
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