Insects (Jun 2022)

Improved Captures of the Invasive Brown Marmorated Stink Bug, <i>Halyomorpha halys</i>, Using a Novel Multimodal Trap

  • Gabriele Rondoni,
  • Elena Chierici,
  • Elisa Marchetti,
  • Stefano Nasi,
  • Roberto Ferrari,
  • Eric Conti

DOI
https://doi.org/10.3390/insects13060527
Journal volume & issue
Vol. 13, no. 6
p. 527

Abstract

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Capture strategies for the brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), are challenging. Here we developed and evaluated a multimodal trap which combines visual and olfactory stimuli. Visual stimuli consisted of LEDs emitting UV-A and visible light. Olfactory stimuli were comprised of the synthetic aggregation pheromone and odours from trapped H. halys individuals. Stink bug attraction at different wavelengths was evaluated in laboratory two-choice bioassays, and different prototypes of the trap were tested in 2021 in natural, agricultural, and urban settings. Traps with a combination of UV-A and blue or green visible wavelengths provided higher H. halys attraction (up to ~8-fold) compared to traditional sticky or small pyramidal traps. The concurrent presence of synthetic pheromone and LED had a synergistic effect on H. halys positive phototaxis. Further development and implementation of the multimodal trap is discussed for prospective use in attract-and-kill or push–pull strategies.

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