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3 April 2021 Trapping Spodoptera frugiperda (Lepidoptera: Noctuidae) Moths in Different Crop Habitats in Togo and Ghana
Djima Koffi, Komi Agboka, Anani Kossi Mawuko Adjevi, Kodjo Assogba, Ken Okwae Fening, Michael Osae, Ebenezer Aboagye, Robert L. Meagher, Rodney N. Nagoshi
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Abstract

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.

Published by Oxford University Press on behalf of Entomological Society of America 2021. This work is written by (a) US Government employee(s) and is in the public domain in the US.
Djima Koffi, Komi Agboka, Anani Kossi Mawuko Adjevi, Kodjo Assogba, Ken Okwae Fening, Michael Osae, Ebenezer Aboagye, Robert L. Meagher, and Rodney N. Nagoshi "Trapping Spodoptera frugiperda (Lepidoptera: Noctuidae) Moths in Different Crop Habitats in Togo and Ghana," Journal of Economic Entomology 114(3), 1138-1144, (3 April 2021). https://doi.org/10.1093/jee/toab048
Received: 16 September 2020; Accepted: 17 February 2021; Published: 3 April 2021
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