Invasive alien wood borers: trapping studies in France
A survey programme on invasive alien wood borers has been carried out France in 2020. Traps of different colours and baited with a mixture of 8 pheromones to attract a wide range of insects have been placed in several sites: 8 points of entry (harbours, airports, nurseries, large markets), 11 forestry sites covering 7 different forest areas, 11 sites with a special focus on possible incursions of Aromia bungii and Xylosandrus spp. (9 in Southeastern France and 2 in Corsica). In total 94 insect species (6000 specimens), including the following alien species have been caught.
Alien species | Family/subfamily | Specimen number | Comments |
Amasa truncata | Scolytinae | 7 | Harbour of Fos sur Mer |
Cordylomera spinicornis | Cerambycidae | 5 | Harbour of Sète (caught near infested lots of imported tropical wood) |
Euplatypus hintzii | Platypodinae | 16 | Harbour of La Rochelle (not established) |
Euplatypus parallelus | Platypodinae | 7 | Harbour of La Rochelle (not established) |
Phoracantha recurva (formerly EPPO Alert List) | Cerambycidae | 1 | - |
Phoracantha semipunctata (formerly EPPO A2 List) | Cerambycidae | 3 | - |
Rhynchophorus ferrugineus | Dryophthoridae | 4 | - |
Trichoferus campestris (EPPO A2 List) | Cerambycidae | 2 | Harbour of Huningue |
Xylosandrus compactus (formerly EPPO Alert List) | Scolytinae | 109 | Caught in 3 sites in Southeastern France (spreading) and caught for the first time in Corsica |
Xylosandrus crassiusculus (formerly EPPO Alert List) | Scolytinae | 123 | Caught in 5 sites in Southeastern France (spreading) |
Xylosandrus germanus | Scolytinae | 96 | |
Xylotrechus chinensis (EPPO Alert List) | Cerambycidae | 3 | Caught near the harbour of Sète and established on ornamental Morus sp. in the city |
Xylotrechus stebbingi | Cerambycidae | 813 | Caught in the Paris region (Rungis international market, nursery in Montesson), harbours of Fos sur Mer and Sète, several sites in Southeastern France and for the first time in Corsica |
It is noted that Amasa truncata was first detected in 2018 in Antibes and is now probably established in eucalyptus plantations in Southeastern France. Aromia bungii was not caught during this survey. Surveys will continue in 2021 with two additional pheromones and including more points of entry.
Sources
Roques A, Bernard A, Courtin C, Denux O, Roques O, Auger-Rozenberg MA (2021) Bilan des piégeages 2020 dans les ports d’entrée et en forets avec le mélange générique attractif pour les xylophages exotiques envahissants. Rapport INRAE URZF Orléans, 13 pp.