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Journal Articles NeoBiota Year : 2023

Worldwide tests of generic attractants, a promising tool for early detection of non-native cerambycid species

Alain Roques
Evgueni Akulov
  • Function : Author
Richard Bellanger
  • Function : Author
Iris Bernadinelli
  • Function : Author
Miloň Dvořák
Joseph Francese
  • Function : Author
Emily Franzen
  • Function : Author
André Garcia
Margarita Georgieva
Federica Giarruzzo
  • Function : Author
Daniele Guarneri
  • Function : Author
Gernot Hoch
Antoon Loomans
  • Function : Author
You-Qing Luo
  • Function : Author
Deborah Mccullough
  • Function : Author
Craig Maddox
  • Function : Author
Matteo Marchioro
Petr Martinek
  • Function : Author
Hugo Mas
  • Function : Author
Bruno Mériguet
  • Function : Author
Yong-Zhi Pan
  • Function : Author
Ann Ray
  • Function : Author
Marie-Cécile Ruiz
  • Function : Author
Victor Sarto I Monteys
  • Function : Author
Stefano Speranza
Jiang-Hua Sun
  • Function : Author
Jon Sweeney
Lionel Valladares
  • Function : Author
Myron Zalucki
  • Function : Author
Yunfan Zou
  • Function : Author
Alenka Žunič-Kosi
  • Function : Author
Lawrence Hanks
  • Function : Author
Jocelyn Millar
  • Function : Author

Abstract

A large proportion of the insects which have invaded new regions and countries are emerging species, being found for the first time outside their native range. Being able to detect such species upon arrival at ports of entry before they establish in non-native countries is an urgent challenge. The deployment of traps baited with broad-spectrum semiochemical lures at ports-of-entry and other high-risk sites could be one such early detection tool. Rapid progress in the identification of semiochemicals for cerambycid beetles during the last 15 years has revealed that aggregation-sex pheromones and sex pheromones are often conserved at global levels for genera, tribes or subfamilies of the Cerambycidae. This possibly allows the development of generic attractants which attract multiple species simultaneously, especially when such pheromones are combined into blends. Here, we present the results of a worldwide field trial programme conducted during 2018–2021, using traps baited with a standardised 8-pheromone blend, usually complemented with plant volatiles. A total of 1308 traps were deployed at 302 sites covering simultaneously or sequentially 13 European countries, 10 Chinese provinces and some regions of the USA, Canada, Australia, Russia (Siberia) and the Caribbean (Martinique). We intended to test the following hypotheses: 1) if a species is regularly trapped in significant numbers by the blend on a continent, it increases the probability that it can be detected when it arrives in other countries/continents and 2) if the blend exerts an effective, generic attraction to multiple species, it is likely that previously unknown and unexpected species can be captured due to the high degree of conservation of pheromone structures within related taxa. A total of 78,321 longhorned beetles were trapped, representing 376 species from eight subfamilies, with 84 species captured in numbers greater than 50 individuals. Captures comprised 60 tribes, with 10 tribes including more than nine species trapped on different continents. Some invasive species were captured in both the native and invaded continents. This demonstrates the potential of multipheromone lures as effective tools for the detection of ‘unexpected’ cerambycid invaders, accidentally translocated outside their native ranges. Adding new pheromones with analogous well-conserved motifs is discussed, as well as the limitations of using such blends, especially for some cerambycid taxa which may be more attracted by the trap colour or other characteristics rather than to the chemical blend.
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Dates and versions

hal-04171539 , version 1 (27-07-2023)

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Open licence - etalab

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Alain Roques, Lili Ren, Davide Rassati, Juan Shi, Evgueni Akulov, et al.. Worldwide tests of generic attractants, a promising tool for early detection of non-native cerambycid species. NeoBiota, 2023, 84, pp.169-209. ⟨10.3897/neobiota.84.91096⟩. ⟨hal-04171539⟩
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