@article{fdi:010053138, title = {{E}fficacy of an insecticide paint against insecticide-susceptible and resistant mosquitoes - {P}art 1: {L}aboratory evaluation}, author = {{M}osqueira, {B}. and {D}uchon, {S}t{\'e}phane and {C}handre, {F}abrice and {H}ougard, {J}ean-{M}arc and {C}arnevale, {P}ierre and {M}as-{C}oma, {S}.}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {T}he main malaria vector {A}nopheles gambiae and the urban pest nuisance {C}ulex quinquefasciatus are increasingly resistant to pyrethroids in many {A}frican countries. {T}here is a need for new products and strategies. {I}nsecticide paint {I}nesfly 5{A} {IGR} ({TM}), containing two organophosphates ({OP}s), chlorpyrifos and diazinon, and insect growth regulator ({IGR}), pyriproxyfen, was tested under laboratory conditions for 12 months following {WHOPES} {P}hase {I} procedures. {M}ethods: {M}osquitoes used were laboratory strains of {C}x. quinquefasciatus susceptible and resistant to {OP}s. {T}he paint was applied at two different doses (1 kg/6 m(2) and 1 kg/12 m(2)) on different commonly used surfaces: porous (cement and stucco) and non-porous (softwood and hard plastic). {I}nsecticide efficacy was studied in terms of delayed mortality using 30-minute {WHO} bioassay cones. {IGR} efficacy on fecundity, fertility and larval development was studied on {OP}-resistant females exposed for 30 minutes to cement treated and control surfaces. {R}esults: {A}fter treatment, delayed mortality was high (87-100%) even against {OP}-resistant females on all surfaces except cement treated at 1 kg/12 m(2). {R}emarkably, one year after treatment delayed mortality was 93-100% against {OP}-resistant females on non-porous surfaces at both doses. {O}n cement, death rates were low 12 months after treatment regardless of the dose and the resistance status. {F}ecundity, fertility and adult emergence were reduced after treatment even at the lower dose (p < 10(-3)). {A} reduction in fecundity was still observed nine months after treatment at both doses (p < 10(-3)) and adult emergence was reduced at the higher dose (p < 10-3). {C}onclusions: {H}igh mortality rates were observed against laboratory strains of the pest mosquito {C}x. quinquefasciatus susceptible and resistant to insecticides. {L}ong-term killing remained equally important on nonporous surfaces regardless the resistance status for over 12 months. {T}he paint's effect on fecundity, fertility and adult emergence may continue to provide an additional angle of attack in reducing overall population densities when the lethal effect of {OP}s diminishes over time. {S}ome options on how to deal with porous materials are given. {I}mplications in vector control are discussed.}, keywords = {}, booktitle = {}, journal = {{M}alaria {J}ournal}, volume = {9}, numero = {}, pages = {340}, ISSN = {1475-2875}, year = {2010}, DOI = {10.1186/1475-2875-9-340}, URL = {https://www.documentation.ird.fr/hor/fdi:010053138}, }