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February 22, 2026Environmental PollutionOpen Access

Chlorfenapyr-based insecticide causes multiple side effects on workers of the stingless bee Partamona helleri (Friese, 1900) (Hymenoptera: Apidae)

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Authors

FSFilipe Schitini SalgadoGPGiovanna dos Santos PereiraDSDiego dos Santos Souza

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Overview

Investigation reveals chlorfenapyr causes toxicity and behavioral changes in stingless bees, suggesting ecological concerns.

Key Points

  • This study aims to investigate the effects of chlorfenapyr on the stingless bee Partamona helleri, focusing on its toxicity and behavioral impact.
  • Conducted bioassays to determine lethal concentrations of chlorfenapyr.
  • Performed histological analyses of bee midgut after exposure to the insecticide.
  • Assessed behavioral changes by measuring distance traveled and velocity of bees post-exposure.
  • Used respirometry to evaluate respiration rates in exposed bees.
  • Chlorfenapyr caused significant epithelial damage and vacuolization in the midgut of P. helleri.
  • Exposed bees showed increased locomotion and stress indicators post-exposure.
  • The respiration rate of bees significantly decreased after chlorfenapyr exposure, affecting metabolic functions.

Cite This Study

Salgado et al. (2026) studied this question.

synapsesocial.com/papers/699a9d50482488d673cd3269https://doi.org/10.1016/j.envpol.2026.127855
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