Evaluation of The Toxic Effect of Sarolaner on Earthworms (Eisenia foetida): A Pilot Study

S ince 2013, the use of isoxazolines in the veterinary market has increased.Recent studies demonstrated the efficacy of these molecules against several ectoparasites, including fleas, mites (Demodex sp., Sarcoptes scabiei, Otodectes cynotis, Caparinia tripilis and Psoroptes cuniculi), and ticks (McTier et al., 2016; Romero et al., 2016; Romero et al., 2017; Sheinberg et al., 2017).The γ-aminobutyric acid (GABA)-gated chloride channel and GABA receptor (GABA-R) are the targets for an expanding number and variety of insecticides, including the polychlorocycloalkanes (e.g., α-endosulfan), fiproles (e.g., fipronil), and avermectins.Like these, isoxazolines (the latest addition with outstanding potency on pests) exhibit insecticidal and miticidal activities by targeting arthropod chloride ions channels linked to GABA or glutamate receptors (Shoop et al., 2014;Zhao and Casida, 2014).They present significant selectivity for insect neurons (Kilp et al., 2016).However, the effect of these molecules on ecosystem functions is unknown.Isoxazolines can potentially accumulate in the soil and may affect the survival of key soil ecosystem microorganisms.Toxicological studies are highly important and essential for the evaluation of research