One of the challenges faced in malarial control is the acquisition of insecticide resistance that has developed in mosquitoes that are vectors for this disease. Anopheles gambiae, which has been the major mosquito vector of the malaria parasite Plasmodium falciparum in Africa, has over the years developed resistance to insecticides including dieldrin, 1,1-bis(p-chlorophenyl)-2,2,2-trichloroetha...

INTRODUCTION: DDT is an organochlorine insecticide used mainly to control mosquito-borne malaria; use on crops has generally been replaced by less persistent insecticides (79). It was extensively used during the Second World War among Allied troops and certain civilian populations to control insect typhus and malaria vectors, and was then extensively used as an agricultural insecticide after 19...

Introduction Malaria vector control in southern Africa relies mainly on indoor residual house spraying (IRS) with insecticides. Synthetic pyrethroids and DDT (dichloro-diphenyl-trichloroethane) are used in IRS applications, while permethrin-treated bed-nets are used for personal protection in some households. DDT was introduced for malaria control in 1946 in South Africa and remained in use unt...

a.sacharovi, which is one of the main malaria vectors of the palearchic region, is resistant to ddt in greece (1949), lebanon (1954), turkey (1959), syria and the u.s.s.r. (1972).the first record of a. sacharovi resistance to ddt in iran was given in 1959 from the kazeroon area, followed by izeh (1969) and meshkin-shahr (1970).this study (1973) urgently advises speedy measures to eliminate the ...

DDT indoor residual sprayings in the Province of Central Java, Indonesia, for the past 28 years are reoieuied in terms ofAnopheles aconitus resistance to DDT and incidences of malaria. DDT resistance by An. aconitus has continued to increase and spread since its first detection in Central Java in 1962. In most areas malaria transmission is perennial, which appears to be not interrupted by DDT r...

<Anopheles culicifacies is a main malaria vector in southeastern part of Iran, bordring Afghanistan and Pakistan. So far, resistance to DDT, dieldrin, malathion and partial tolerance to pyrethroids has been reported in An. stephensi, but nothing confirmed on resistance status of An. culicifacies in Iran. Methods: In current study, along with WHO routine susceptibility test with DDT (4%), di...

background: during recent years transmission of dirofilaria immitis (dog heart worm) by culex pipiens and west nile virus have been reported from iran. the present study was preformed for evaluating the susceptibility status of cx. pipiens collected from capital city of tehran, iran . methods: four insecticides including: ddt 4%, lambdacyhalothrin 0.05%, deltamethrin 0.05% and cyfluthrin 0.15 %...

Recently, resistance to the pyrethroid bifenthrin was detected and confirmed in field populations of western corn rootworm, Diabrotica virgifera virgifera LeConte from southwestern areas of Nebraska and Kansas. As a first step to understand potential mechanisms of resistance, the objectives of this study were i) to assess adult mortality at diagnostic concentration-LC99 to the pyrethroids bifen...

Mutations that confer pesticide resistance are predicted to carry a cost in the absence of pesticide and consequently not to spread to fixation [1,2]. However, DDT resistance in Drosophila melanogaster (DDT-R) is approaching fixation globally, long after withdrawl of DDT [3]. There are two possible explanations for this. First, other insecticides, to which DDT-R confers cross-resistance [4], ma...

This study was aimed to investigate thecurrent insecticide resistance status in malaria vector mosquitoes from Dogbo district South-western Benin, West Africa. Larvae and pupae of Anopheles gambiae s.l. populations were collected the breeding sites March July 2020 during first rainy season Couffo department using dipping method. WHO susceptibility tests conducted on unfed female aged 2-5 days o...