Teste de susceptibilidade do percevejo, Cimex lectularius L. (Hemiptera, Cimicidae) ao DDT em Belo Horizonte, MG (Brasil)

Nagem, Ronaldo Luiz; Williams, Paul

doi:10.1590/s0034-89101992000200009

Cited by 6 publications

(1 citation statement)

References 4 publications

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“…However, since the 1980s, bed bug infestation has been recurrent in developed countries (Kolb et al 2010), moreover in poor countries, infestation occurrences remain abundant (Potter et al 2010). It is known that the occurrence of cimicids is not limited to places with poor hygiene and housing conditions, these insects are captured in hotels, motels, apartments, prisons, homes, among others (Nagem and Williams 1992).…”

Section: Introductionmentioning

confidence: 99%

Morphological studies of Cimex lectularius Linnaeus, 1758 (Hemiptera: Cimicidae)

Kawasima¹,

Paiva

Belintani

et al. 2022

RCHE

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In the family Cimicidae, the genus Cimex stands out for its importance in public health. These hemipterans are known as “bed bugs” and their presence generally indicates poor hygiene and poverty. Cimex lectularius is a hematophagous insect and has a global distribution. In Brazil, control occurs indirectly, due to the control of other vectors. The real knowledge of the epidemiological situation is still compromised by under-reporting. To contribute to the knowledge of the biology and taxonomy of these hematophagous insects, the morphological characters of adults and the five nymphal instars of C. lectularius were analyzed and characterized by means of scanning electron microscopy (SEM). Morphological study by SEM allowed the characterization of eggshell, each nymphal instar, the sexual differentiation of fifth instar nymphs, female, and male external genitalia. In this study it was possible to evaluate the morphological characters of C. lectularius, of all five nymphs’ instars. It is relevant to characterize the morphology of these insects, since the results obtained can contribute to the control actions, as well as to the taxonomic studies of this species.

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Section: Introductionmentioning

confidence: 99%

Morphological studies of Cimex lectularius Linnaeus, 1758 (Hemiptera: Cimicidae)

Kawasima¹,

Paiva

Belintani

et al. 2022

RCHE

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Insecticide Resistance

Romero¹

2018

Advances in the Biology and Management of Modern Bed Bugs

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Widespread distribution of knockdown resistance mutations in the bed bug, Cimex lectularius (Hemiptera: Cimicidae), populations in the United States

Zhu

Wigginton

Romero

et al. 2010

Arch Insect Biochem Physiol

190

196

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We previously reported high deltamethrin resistance in bed bugs, Cimex lectularius, collected from multiple areas of the United States (Romero et al., 2007). Recently, two mutations, the Valine to Leucine mutation (V419L) and the Leucine to Isoleucine mutation (L925I) in voltagegated sodium channel a-subunit gene, had been identified to be responsible for knockdown resistance (kdr) to deltamethrin in bed bugs collected from New York (Yoon et al., 2008). The current study was undertaken to investigate the distribution of these two kdr mutations in 110 bed bug populations collected in the United States. Out of the 17 bed bug populations that were assayed for deltamethrin susceptibility, two resistant populations collected in the Cincinnati area and three deltamethrin-susceptible lab colonies showed neither of the two reported mutations (haplotype A). The remaining 12 populations contained L925I or both V419L and L925I mutations in voltage-gated sodium channel a-subunit gene (haplotypes B&C). In 93 populations that were not assayed for deltamethrin susceptibility, 12 contained neither of the two mutations (haplotype A) and 81 contained L925I or V419L or both mutations (haplotypes B-D). Thus, 88% of the bed bug populations collected showed target-site mutations. These data suggest that

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Teste de susceptibilidade do percevejo, Cimex lectularius L. (Hemiptera, Cimicidae) ao DDT em Belo Horizonte, MG (Brasil)

Cited by 6 publications

References 4 publications

Morphological studies of Cimex lectularius Linnaeus, 1758 (Hemiptera: Cimicidae)

Morphological studies of Cimex lectularius Linnaeus, 1758 (Hemiptera: Cimicidae)

Insecticide Resistance

Widespread distribution of knockdown resistance mutations in the bed bug, Cimex lectularius (Hemiptera: Cimicidae), populations in the United States

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