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March 1, 2026SHILAP Revista de lepidopterologíaOpen Access

Investigating the Genetic Underpinnings of Ongoing Fall Armyworm (FAW) Range Expansion in Aotearoa New Zealand

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Authors

AVAmy L. VaughanAMAngela McGaughranKNKiwoong Nam

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Overview

Analysis identifies genetic origins and insecticide resistance in fall armyworm populations, highlighting control strategies.

Key Points

  • The aim is to assess the genetic basis of fall armyworm range expansion in New Zealand and identify insecticide resistance.
  • Examined whole genomes of 34 novel FAW individuals along the invasion front.
  • Compared with 173 samples in the largest global FAW genome dataset.
  • Analyzed potential geographic origins and population structure of invasions.
  • Confirmed new invasions align with initial populations from Benin, West Africa.
  • Preliminary evidence supports a multiple introduction hypothesis for New Zealand.
  • Putative insecticide resistance alleles were detected in novel samples.

Cite This Study

Vaughan et al. (2026) studied this question.

synapsesocial.com/papers/69a3d89aec16d51705d2f930https://doi.org/10.1002/ece3.73102
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