Grooming capacity inhibition in Cornitermes cumulans (Kollar) (Isoptera: Termitidae) inoculated with entomopathogenic fungi and treated with imidacloprid

  • Neves P
  • Alves S
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Abstract

This study was carried out to attest inhibition in C. cumulans grooming behavior when treated with entomopathogenic fungi and sub-doses of imidacloprid insecticide. Observations were made under the scanning electronic microscope. The termite workers showed an efficient grooming behavior which allowed the removal of all conidia from the cuticle of soldiers and other workers, in the first hours after fungal application. The insecticide imidacloprid, when used in sublethal concentrations, inhibited grooming behavior and allowed conidia to germinate and penetrate the insect cuticle, causing infectionEste estudo foi realizado para comprovar a inibição do comportamento de limpeza de C. cumulans quando tratado com conídios de fungos entomopatogênicos e sub-doses do inseticida imidaclopride. As observações foram realizadas através de microscópio eletrônico de varredura. Os operários mostraram um eficiente mecanismo de limpeza o que possibilitou a remoção, nas primeiras horas após a aplicação, de praticamente todos os conídios da cutícula dos soldados e dos outros operários. O inseticida imidaclopride, quando utilizado em doses sub-letais, inibiu o comportamento de limpeza, permitindo que os conídios germinassem e penetrassem a cutícula do inseto provocando a infeção.

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APA

Neves, P. M. O. J., & Alves, S. B. (2000). Grooming capacity inhibition in Cornitermes cumulans (Kollar) (Isoptera: Termitidae) inoculated with entomopathogenic fungi and treated with imidacloprid. Anais Da Sociedade Entomológica Do Brasil, 29(3), 537–545. https://doi.org/10.1590/s0301-80592000000300016

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