NDLI: Natural enemies of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Ghana

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Natural enemies of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Ghana

Content Provider	Consultative Group on International Agricultural Research (CGIAR)
Author	Koffi, D. Kyerematen, R. Eziah, V.Y. Agboka, K. Adom, M. Goergen, Georg E. Meagher Jr, R.L.
Spatial Coverage	Ghana [GH]
Description	The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is an invasive insect pest attacking maize in Ghana and sub-Saharan Africa countries. Biological control will need to be an important management strategy, and a first step was to identify potential natural enemies. Sampling was conducted in different localities of the 10 regions of Ghana from May to Nov 2017. A total of 1,062 larvae were collected from 106 maize farms, and the presence of natural enemies was recorded in 18 (17.0%) farms. Among natural enemies recorded, 7 species were parasitoids: Chelonus bifoveolatus Szpligeti, Coccygidium luteum (Brull), Cotesia icipe Fernandez, Meteoridea testacea (Granger), and Bracon sp. (all Hymenoptera: Braconidae), Anatrichus erinaceus Loew (Diptera: Chloropidae), and an undetermined tachinid fly (Diptera: Tachinidae). The parasitism rate was 3.58%. Three predator species were collected: Pheidole megacephala (F.) (Hymenoptera: Formicidae), Haematochares obscuripennis Stål, and Peprius nodulipes (Signoret) (both Heteroptera: Reduviidae). The 2 most abundant parasitoids were C. bifoveolatus and C. luteum with a relative abundance of 29.0% and 23.7%, respectively, and a parasitism rate of 1.04% and 0.85%, respectively. However, C. bifoveolatus was the most dispersed parasitoid, found in 6.6% of the inspected sites within all the agroecological zones of Ghana. This species is a good candidate as a biological control agent for fall armyworm in Africa. The predator that was most abundant (46.0%) and dispersed (3.8% of the farms) was P. megacephala. El cogollero, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), es una plaga de insectos invasora que ataca el maíz en Ghana y los países de África subsahariana. El control biológico deberá ser una estrategia de manejo importante, y un primer paso es identificar los enemigos naturales potenciales. Se realizó el muestreo en diferentes localidades de las 10 regiones de Ghana desde mayo hasta noviembre del 2017. Se recolectó un total de 1.062 larvas de 106 granjas de maíz, y se registró la presencia de enemigos naturales en 18 granjas (17.0%). Entre los enemigos naturales registrados, 7 especies fueron parasitoides: Chelonus bifoveolatus Szpligeti, Coccygidium luteum (Brull), Cotesia icipe Fernandez, Meteoridea testacea (Granger) y Bracon sp. (todos los Hymenoptera: Braconidae), Anatrichus erinaceus Loew (Diptera: Chloropidae) y una mosca taquinida indeterminada (Diptera: Tachinidae). La tasa de parasitismo fue del 3.58%. Se recolectaron tres especies de depredadores: Pheidole megacephala (F.) (Hymenoptera: Formicidae), Haematochares obscuripennis Stål y Peprius nodulipes (Signoret) (ambos Heteroptera: Reduviidae). Los 2 parasitoides más abundantes fueron C. bifoveolatus y C. luteum con una abundancia relativa del 29.0% y 23.7%, respectivamente, y una tasa de parasitismo del 1.04% y 0.85%, respectivamente. Sin embargo, C. bifoveotus fue el parasitoide más disperso, encontrado en el 6.6% de los sitios inspeccionados dentro de todas las zonas agroecológicas de Ghana. Esta especie es un buen candidato como agente de control biológico para el cogollero en África. El depredador que fue más abundante (46.0%) y disperso (3.8% de las granjas) fue P. megacephala.
Sponsorship	Deutscher Akademischer Austauschdienst
Related Links	https://cgspace.cgiar.org/items/2345abd2-4b19-4113-8c5b-2864385cd7ab
File Format	PDF
ISSN	00154040
DOI	10.1653/024.103.0414
Journal	Florida Entomologist
Issue Number	1
Volume Number	103
Language	German English
Publisher	Florida Entomological Society
Publisher Date	2020-04-08
Access Restriction	Open
Rights License	CC-BY-4.0
Subject Keyword	Plant Production & Health Biological Control Cotesia Pheidole Megacephala Spodoptera Frugiperda Ghana Insect Pests Aflatoxin Agronomy Crop Systems Food Security Pests OF Plants Plant Health Plant Production
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science Food Science Plant Science

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