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Testing multi-lure traps for surveillance of native and alien longhorn beetles (Coleoptera, Cerambycidae) at ports of entry and in forests in Austria

Abstract : A multi-lure approach for trapping a wide variety of Cerambycidae was tested at the Port of Vienna in 2017 and 2018, a high risk area for the introduction of invasive tree pests transported in wood packaging material. Traps were deployed in the port area and in an adjacent broadleaved forest. A second experimental site was set up in a pine forest in eastern Austria not influenced by wood imports. Blends of cerambycid pheromone compounds were tested: Blend 1 mixing four pheromone components for various Lamiinae and Spondylidinae, Blend 2 mixing four pheromone components for various Cerambycinae and Prioninae, and Blend 3 combining the eight volatiles. Additionally, the host tree kairomones ethanol and (-)-α-pinene were added as general attractants. A total of 30 cerambycid species was detected with the traps in 2017; 36 species were detected in 2018. The full blend (Blend 3 plus ethanol plus (-)-α-pinene) caught significantly more cerambycid species than the more specific Blends 1 and 2. Addition of ethanol plus (-)-α-pinene to Blend 3 significantly increased the number of trapped cerambycid individuals but not the number of species. Overall, we caught 28 cerambycid species at the Port of Vienna (11 species) and the adjacent forest (23 species) and 23 species in the pine forest. No alien cerambycid was detected in the two years. Trapping with multiple lures could be employed in surveillance programs against potentially invasive cerambycids in high risk areas for introduction.
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https://hal.inrae.fr/hal-03291393
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Submitted on : Monday, July 19, 2021 - 5:21:50 PM
Last modification on : Wednesday, July 21, 2021 - 3:49:19 AM

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Gernot Hoch, James Connell, Alain Roques. Testing multi-lure traps for surveillance of native and alien longhorn beetles (Coleoptera, Cerambycidae) at ports of entry and in forests in Austria. Management of Biological Invasions, Regional Euro-Asian Biological Invasions Centre - REABIC, PL 3, 00981 Helsinki, FINLAND, 2020, 11 (4), pp.677 - 688. ⟨10.3391/mbi.2020.11.4.04⟩. ⟨hal-03291393⟩

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