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

Table 3

Mortality rates of Culex pipiens with deltamethrin alone and deltamethrin + PBO in Mohammedia, Benslimane, and Skhirate, 24 hours after exposure.

Insecticide	PBO only				PBO + deltamethrin 0.05%				Deltamethrin 0.05% only				Solvent control
Study sites	N	KdT50	KdT90	%Mr	N	KdT50 [CI]	KdT90 [CI]	%Mr [SE]	N	KdT50 [CI]	KdT90 [CI]	%Mr [SE]	N	KdT50	KdT90	%Mr
Mohammedia	75	—	—	0	75	18 [16–19]	27 [25–29]	99 [0.2]	76	23 [7.5–30]	37 [28–104]	83 [0.8]	75	—	—	0
Benslimane	75	—	—	0	71	11 [0.02–24]	25 [1.1–39]	87 [1.3]	69	19 [13–24]	43 [33–68]	59 [1.3]	76	—	—	0
Skhirate	77	—	—	0	78	11 [2–21]	24 [3–34]	100 [0]	77	18 [6–26]	46 [34–55]	88 [0.7]	75	—	—	0

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, and %Mr: mortality percentage.