Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)

Chemical control remains as the principal mean of bed bug control in Malaysia despite insecticide resistance of bed bugs being widely documented. To date, there are fewer studies reported on insecticide resistance of C.x hemipterus as compared to C. lectularius . This study aims to investigate insec...

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Main Author:	Leong, Xin Yeng
Format:	Thesis
Language:	English
Published:	2022
Subjects:	QH1 Natural history (General - Including nature conservation geographical distribution)
Online Access:	http://eprints.usm.my/59382/1/LEONG%20XIN%20YENG%20-%20TESIS24.pdf
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id	my-usm-ep.59382
record_format	uketd_dc
spelling	my-usm-ep.593822023-09-14T07:18:44Z Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae) 2022-07 Leong, Xin Yeng QH1 Natural history (General - Including nature conservation, geographical distribution) Chemical control remains as the principal mean of bed bug control in Malaysia despite insecticide resistance of bed bugs being widely documented. To date, there are fewer studies reported on insecticide resistance of C.x hemipterus as compared to C. lectularius . This study aims to investigate insecticide resistance status and its underlying mechanisms in eight field C. hemipterus strains collected in Malaysia and Australia. A C. lectularius (Monheim) susceptible strain was used as reference as no susceptible C. hemipterus strains were found. The C. hemipterus strains were evaluated for their resistance levels using commercialized residual liquid formulations, permethrin-impregnated (ActiveGuard) mattress liner, and technical grade insecticides. Insecticide classes investigated include pyrethroids (deltamethrin, lambda-cyhalothrin, beta-cyfluthrin, d-tetramethrin, cyphenothrin, d-phenothrin), neonicotinoids (thiamethoxam, imidacloprid), organophosphates (fenitrothion, chlorpyrifos), pyrrole (chlorfenapyr), and organochlorine (DDT). The parameters evaluated include developmental stages, exposure period, and mortality observation time. Results detected pyrethroid, neonicotinoid, organophosphate, and pyrrole resistance in adults of all C. hemipterus strains, exhibiting low to extremely high resistance levels. First instars demonstrated substantially lower resistance status than adults. Insecticide resistance was detected at egg stage 2022-07 Thesis http://eprints.usm.my/59382/ http://eprints.usm.my/59382/1/LEONG%20XIN%20YENG%20-%20TESIS24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Kajihayat
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QH1 Natural history (General - Including nature conservation geographical distribution)
spellingShingle	QH1 Natural history (General - Including nature conservation geographical distribution) Leong, Xin Yeng Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)
description	Chemical control remains as the principal mean of bed bug control in Malaysia despite insecticide resistance of bed bugs being widely documented. To date, there are fewer studies reported on insecticide resistance of C.x hemipterus as compared to C. lectularius . This study aims to investigate insecticide resistance status and its underlying mechanisms in eight field C. hemipterus strains collected in Malaysia and Australia. A C. lectularius (Monheim) susceptible strain was used as reference as no susceptible C. hemipterus strains were found. The C. hemipterus strains were evaluated for their resistance levels using commercialized residual liquid formulations, permethrin-impregnated (ActiveGuard) mattress liner, and technical grade insecticides. Insecticide classes investigated include pyrethroids (deltamethrin, lambda-cyhalothrin, beta-cyfluthrin, d-tetramethrin, cyphenothrin, d-phenothrin), neonicotinoids (thiamethoxam, imidacloprid), organophosphates (fenitrothion, chlorpyrifos), pyrrole (chlorfenapyr), and organochlorine (DDT). The parameters evaluated include developmental stages, exposure period, and mortality observation time. Results detected pyrethroid, neonicotinoid, organophosphate, and pyrrole resistance in adults of all C. hemipterus strains, exhibiting low to extremely high resistance levels. First instars demonstrated substantially lower resistance status than adults. Insecticide resistance was detected at egg stage
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Leong, Xin Yeng
author_facet	Leong, Xin Yeng
author_sort	Leong, Xin Yeng
title	Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)
title_short	Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)
title_full	Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)
title_fullStr	Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)
title_full_unstemmed	Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)
title_sort	insecticide resistance and its underlying mechanisms, and product evaluations against tropical bed bugs, cimex hemipterus (fabricius) (hemiptera: cimicidae)
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kajihayat
publishDate	2022
url	http://eprints.usm.my/59382/1/LEONG%20XIN%20YENG%20-%20TESIS24.pdf
_version_	1783729544658681856

Insecticide Resistance And Its Underlying Mechanisms, And Product Evaluations Against Tropical Bed Bugs, Cimex Hemipterus (Fabricius) (Hemiptera: Cimicidae)

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