Insects (2021) 12 (4 - 273)

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Ghislain T. Tepa-Yotto, Henri E.Z. Tonnang, Georg Goergen, Sevgan Subramanian, Emily Kimathi, Elfatih M. Abdel-Rahman, Daniel Flø, Karl H. Thunes, Komi K.M. Fiaboe, Saliou Niassy, Anani Bruce, Samira A. Mohamed, Manuele Tamò, Sunday Ekesi and May-Guri Sæthre (2021)
Global habitat suitability of Spodoptera frugiperda (JE Smith) (Lepidoptera, Noctuidae): Key parasitoids considered for its biological control
Insects 12 (4 - 273)
Abstract: The present study is the first modeling effort at a global scale to predict habitat suitability of fall armyworm (FAW), Spodoptera frugiperda and its key parasitoids, namely Chelonus insularis, Cotesia marginiventris,Eiphosoma laphygmae,Telenomus remus and Trichogramma pretiosum, to be considered for biological control. An adjusted procedure of a machine-learning algorithm, the maximum entropy (Maxent), was applied for the modeling experiments. Model predictions showed particularly high establishment potential of the five hymenopteran parasitoids in areas that are heavily affected by FAW (like the coastal belt of West Africa from Côte d'Ivoire (Ivory Coast) to Nigeria, the Congo basin to Eastern Africa, Eastern, Southern and Southeastern Asia and some portions of Eastern Australia) and those of potential invasion risks (western and southern Europe). These habitats can be priority sites for scaling FAW biocontrol efforts. In the context of global warming and the event of accidental FAW introduction, warmer parts of Europe are at high risk. The effect of winter on the survival and life cycle of the pest in Europe and other temperate regions of the world are discussed in this paper. Overall, the models provide pioneering information to guide decision making for biological-based medium and long-term management of FAW across the globe.
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Database assignments for author(s): Ghislain T. Tepa-Yotto, Georg Goergen, Sevgan Subramanian, Komi K.M. Fiaboe, Manuele Tamò, Sunday Ekesi, May-Guri Saethre

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.
Spodoptera frugiperda
Trichogramma pretiosum (parasitoid) Spodoptera frugiperda
Cotesia marginiventris (parasitoid) Spodoptera frugiperda
Chelonus insularis (parasitoid) Spodoptera frugiperda
Telenomus remus (parasitoid) Spodoptera frugiperda
Eiphosoma laphygmae (parasitoid) Spodoptera frugiperda