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First record of an African grass-feeding wasp (Tetramesa; Eurytomidae) on the invasive grass Eragrostis curvula (African lovegrass; Poaceae) in Australia

Article scientifique 2023 Anglais

Résumé

An undescribed phytophagous wasp belonging to the Tetramesa genus (Hymenoptera: Eurytomidae), that is native to South Africa, is currently being investigated as a potential weed biological control agent for the invasive grass Eragrostis curvula (Poaceae) in Australia.Host-specificity testing is underway in South Africa, but the wasp has not been exported into quarantine in Australia and further research is required before it could be considered for release.Here, we used DNA barcoding to demonstrate that Tetramesa specimens collected on invasive E. curvula populations in Australia represent the same wasp species currently being investigated in South Africa.We discuss our findings in the context of developing a biological control programme against E. curvula in Australia and the potential risk posed to native Australian grasses.

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Sutton, G., Steenderen, C., Yell, L., Canavan, K., McConnachie, A., Paterson, I. (2023). First record of an African grass-feeding wasp (Tetramesa; Eurytomidae) on the invasive grass Eragrostis curvula (African lovegrass; Poaceae) in Australia. https://doi.org/10.3391/bir.2023.12.3.05

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Auteur(s)

Guy F. Sutton Clarke J. M. van Steenderen Liam D. Yell Kim Canavan Andrew J. McConnachie Iain D. Paterson

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