Trapping Spodoptera frugiperda (Lepidoptera: Noctuidae) Moths in Different Crop Habitats in Togo and Ghana

The economic impact of the invasion of Spodoptera frugiperda (J.E. Smith, Lepidoptera: Noctuidae) into Africa has so far been limited to maize agriculture but could potentially impact many other crops. Trapping based on pheromone lures provides a cost-effective method for detecting this important pe...

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Bibliographic Details
Published in:Journal of economic entomology 2021-06, Vol.114 (3), p.1138-1144
Main Authors: Koffi, Djima, Agboka, Komi, Mawuko Adjevi, Anani Kossi, Assogba, Kodjo, Fening, Ken Okwae, Osae, Michael, Aboagye, Ebenezer, Meagher, Robert L., Nagoshi, Rodney N.
Format: Article
Language:English
Subjects:
Agricultural ecology
Agricultural ecosystems
Agricultural pests
agricultural systems
Animal behavior
Butterflies & moths
Control
Corn
ECOLOGY AND BEHAVIOR
Economic impact
fall armyworm
Geographical distribution
Grasses
Host plants
Lepidoptera
maize seasons
Noctuidae
Pasture
pheromone components
Pheromone traps
Pheromones
Rice
Sorghum
Spodoptera frugiperda
Trapping
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Summary:The economic impact of the invasion of Spodoptera frugiperda (J.E. Smith, Lepidoptera: Noctuidae) into Africa has so far been limited to maize agriculture but could potentially impact many other crops. Trapping based on pheromone lures provides a cost-effective method for detecting this important pest (commonly known as fall armyworm) and will be essential for large-scale monitoring of populations to determine its geographical distribution and migration behavior as the species equilibrates to its new environment. However, the effective use of pheromone trapping requires optimization for a given location. An earlier report demonstrated that two commercial lures (one 3-component and the other 4-component) that were effective for trapping S. frugiperda in maize fields in Togo, Africa. The current study extends these findings to agricultural areas that differ in plant host composition (maize, pasture grasses, rice, and sorghum) in multiple locations in Ghana and Togo. In two seasons, significantly higher numbers of moths were found in maize, and in one season, higher numbers were found in rice than in sorghum and pasture grass systems. The results confirm the effectiveness of pheromone trapping and identify pheromone lures and trapping methods best suited for the different agroecosystems common to West Africa and that are at risk of infestation by S. frugiperda.
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/toab048