Research Article

Insecticide Resistance in the Disease Vector Culex pipiens in Morocco: Intensity, Mechanisms, and Contribution in Insecticide Resistance Management

Table 1

Susceptibility of Culex pipiens to DDT, deltamethrin, bendiocarb, and malathion in Mohammedia, Benslimane, and Skhirate.

InsecticideDDT 4%Deltamethrin 0.05%Bendiocarb 0.1%Malathion 5%
Study sitesNKdT50 [CI]KdT90 [CI]%Mr [SE]SNKdT50 [CI]KdT90 [CI]%Mr [SE]SN%Mr [SE]SN%Mr [SE]S

Mohammedia91166 [45–262]816 [424–1,700]74 [0.9]R10012 [0.9–19]30 [19–183]75 [0.5]R10074 [1.1]R8982 [0.9]R

Benslimane1001,771 [1,200–1,886]6,978 [5,661–10,523]2 [0.2]R10050 [24–65]122 [80–211]44 [0.7]R9432 [0.5]R10370 [2]R

Skhirate101112 [98–123]266 [238–311]84 [0.7]R9923 [21–25]49 [44–55]85 [0.7]R10172 [0.5]R9883 [1.2]R

N: number of mosquitoes, KdT50: time of which 50% of the tested population suffers a knockdown, KdT90: time of which 90% of the tested population suffers a knockdown, %Mr: mortality percentage, S: status, and R: resistant.