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Insecticidal Activity of Pyrethroids Against Triatoma infestans

Published online by Cambridge University Press:  19 September 2011

N. Casabé
Affiliation:
Centro de Investigaciones de Plagas e Insecticidas, Cipein (Citefa-Conicet), J. Zufriategui 4380–1603 Villa Martelli Peía, de Buenos Aires, Argentina
F. Melgar
Affiliation:
Centro de Investigaciones de Plagas e Insecticidas, Cipein (Citefa-Conicet), J. Zufriategui 4380–1603 Villa Martelli Peía, de Buenos Aires, Argentina
E. J. Wood
Affiliation:
Centro de Investigaciones de Plagas e Insecticidas, Cipein (Citefa-Conicet), J. Zufriategui 4380–1603 Villa Martelli Peía, de Buenos Aires, Argentina
E. N. Zerba
Affiliation:
Centro de Investigaciones de Plagas e Insecticidas, Cipein (Citefa-Conicet), J. Zufriategui 4380–1603 Villa Martelli Peía, de Buenos Aires, Argentina
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Abstract

The insecticide activity of synthetic pyrethroids to Triatoma infestans was tested by topical application. Deltamethrin, fenpropathrin, bioresmethrin, permethrin, cypermethrin, d-phenothrin and cyphenothrin showed the highest activity.

The susceptibility to poisoning of adult insects by these pyrethroids (except bioresmethrin) was increased by cotreatment with profenofos or with piperonyl butoxide (PBO). Assayed pyrethroids synergized by PBO showed similar general structure.

The vinyl cyano pyrethroids showed a knockdown effect with a delayed recovery. During 15 days after intoxication with deltamethrin, insect recovery was observed. Recovery blockage by PBO was observed in cyphenothrin and deltamethrin poisoning at low doses.

Résumé

L'activité insecticide de pyréthrinoides de synthèse a été essayée par application topique sur Triatoma infestans.

Deltaméthrine, fénpropathrine, biorésméthrine, permethrine, cyperméthrine, d-phénothrine et cyphénothrine ont montrée la meilleure activité.

La susceptibilité à l'intoxication par ces pyréthrinoides des insectes adultes (avec l'exception de biorésmethrine) a été améliorée en ajoutant le profenofos ou le butoxide de pipéronyl (PBO) dans les traitements. Les pyréthrinoides synergisées par PBO ont montrée une structure chimique similaire. Les vinyl cyano piréthrinoides ont montrée l'effect choc accompagné d'une récupération retardée. Pendant 15 jours aprés l'intoxication avec la deltaméthrine, la récupération des insectes a été obtenue.

Type
Research Articles
Copyright
Copyright © ICIPE 1988

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