Evaluation of the insecticide susceptibility profile in <i>Cimex lectularius</i> (Hemiptera: Cimicidae) in Belo Horizonte (Brazil)

Pessoa, Grasielle Caldas D’Ávila; Silva, Diego Oliveira da; Rosa, Aline Cristine Luiz; Andrade, Pedro Horta; Diotaiuti, Liléia

doi:10.1590/0037-8682-0707-2020

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Short Communication • Rev. Soc. Bras. Med. Trop. 54 • 2021 • https://doi.org/10.1590/0037-8682-0707-2020 copy

Evaluation of the insecticide susceptibility profile in Cimex lectularius (Hemiptera: Cimicidae) in Belo Horizonte (Brazil)

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

INTRODUCTION:

Since 2013, major Cimex lectularius infestations have been detected in public shelters in Belo Horizonte (Brazil). Due to this, insecticide resistance has been investigated as one of the possible causes for the failure to control bedbugs.

METHODS:

Cimicids were subjected to bioassays according to the World Health Organization recommendations using deltamethrin and all commercial insecticides available for control of Cimex in Brazil.

RESULTS:

Cimicids were deltamethrin resistant and presented indicative of resistance to other insecticides, except for propoxur 1%.

CONCLUSIONS:

The commercial insecticides have a limited effect on bedbug populations, which may justify the unsatisfactory control observed in the shelters studied.

Keywords:
Heteroptera; Control; Insecticide resistance

Commercial insecticide name	Chemical composition	Recommendation for use	Recommended dose for use	Manufacturer
Bifentol® 200 SC ¹	Bifenthrin 20%	Bed bugs	2.5 mL/L	Chemone
Plurestro® PRO Aerosol¹	Pyrethrin 0.5%	Bed bugs	-	Basf
Calira® Aerosol ²	Propoxur 1%	Bed bugs	-	Basf
Tenopa® SC ³	Alpha-Cypermethrin 3% with Flufenoxuron 3%	Bed bugs	17 mL/L	Basf
Temprid® SC ⁴	Beta-Cyfluthrin 10.5% with Imidacloprid 21%	Bed bugs	2 mL/L	Bayer
Alfatek® 200 SC ¹	Alpha-Cypermethrin 20%	Triatomines	5mL/L	Rogama
Ficam® VC ²	Bendiocarb 80%	mosquitoes, scorpions, sandflies, triatomines	7.5g/L	Bayer
Optigard® LT ⁵	Thiathomexam 25%	Flies (adults), Cockroaches	16g/L	Syngenta
Termidor® 25CE⁶	Fipronil 2.5%	Soil termites	15 mL/L	Basf

Insecticides evaluated	Unidade de Acolhimento Institucional		Unidade de Acolhimento Institucional
	para População de Rua - Albergue Tia		para Migrantes - Pousadinha Mineira
	2014	2014	2015	2015
	N/Dead (%)	N/Dead (%)	N/Dead (%)	N/Dead (%)
Control Group 1 (C1)	30/0 (0.0)	30/0 (0.0)	30/0 (0.0)	30/0 (0.0)
Deltamethrin - technical grade	30/9 (30.0)	30/6 (20.0)	30/0 (0.0)	30/0 (0.0)
Control Group (C2) ^a to commercial insecticide formulations	30/0 (0.0)	30/0 (0.0)	30/0 (0.0)	30/0 (0.0)
Bifenthrin 20% ^G	30/24 (80.0)	30/25 (83.3)	30/24 (80.0)	30/24 (80.0)
Pyrethrin 0.5% ^Ab	30/1 (3.3)	30/0 (0.0)	30/1 (3.3)	30/0 (0.0)
Propoxur 1% ^H	30/30 (100.0)	30/30 (100.0)	30/30 (100.0)	30/30 (100.0)
Alpha-Cypermethrin 3% With Flufenoxuron 3% ^Ab	30/1 (3.3)	30/0 (0.0)	30/1 (3.3)	30/1 (3.3)
Beta-Cyfluthrin 10.5% With Imidacloprid 21% ^Bc	30/0 (0.0)	30/2 (6.6)	30/1 (3.3)	30/1 (3.3)
Alpha-Cypermethrin 20% ^Bc	30/0 (0.0)	30/0 (0.0)	30/2 (6.6)	30/2 (6.6)
Bendiocarb 80% ^F	30/11 (36.6)	30/12 (40.0)	30/14 (46.6)	30/14 (46.6)
Thiathomexam 25% ^De	30/3 (10.0)	30/5 (16.6)	30/5 (16.6)	30/5 (16.6)
Fipronil 2.5% ^Cd	30/2 (6.6)	30/2 (6.6)	30/5 (16.6)	30/2 (6.6)

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[1] Corresponding author: Dr. Grasielle Caldas D’Ávila Pessoa. e-mail:gcdpessoa@icb.ufmg.br