Table 2.

Frequencies of ace-1 mutation according to the phenotype (resistant/susceptible) of different forms of Cx. pipiens in Mohammadia, Morocco

Insecticide	Cx. pipiens form	Phenotype	n (%)	Insecticide resistance (%)	Genotype (%)			Frequency of allele
					SS	RS	RR
					n (%)	n (%)	n (%)
Malathion	Cx. p. pipiens	Susceptible	30 (46.0)		22 (73.0)	8 (27.0)	0	0.13
		Resistant	35 (54.0)	67	25 (71.5)	10 (28.5)	0	0.14
		Total	65		47 (72.0)	18 (28.0)	0	0.14
	Hybrid	Susceptible	8 (40.0)		5 (62.5)	3 (37.5)	0	0.19
		Resistant	12 (60.0)	23	6 (50.0)	6 (50.0)	0	0.25
		Total	20		11 (55.0)	9 (45.0)	0	0.22
	Cx. p. molestus	Susceptible	2 (28.5)		2 (100)	0	0	0
		Resistant	5 (71.5)	10	4 (80.0)	1 (20.0)	0	0.10
		Total	7		6 (86.0)	1 (14.0)	0	0.07
Bendiocarb	Cx. p. pipiens	Susceptible	23 (37.0)		22 (96.0)	1 (4.0)	0	0.02
		Resistant	39 (63.0)	63	31 (79.5)	8 (20.5)	0	0.10
		Total	62		53 (85.0)	9 (15.0)	0	0.07
	Hybrid	Susceptible	16 (52.0)		15 (94.0)	1 (6.0)	0	0.03
		Resistant	15 (48.0)	24	10 (67.0)	5 (33.0)	0	0.17
		Total	31		25 (81.0)	6 (19.0)	0	0.09
	Cx. p. molestus	Susceptible	1 (11.0)		1 (100)	0	0	0
		Resistant	8 (89.0)	13	8 (100)	0	0	0
		Total	9		9 (100)	0	0	0

Abbreviations: RR homozygote resistant, RS heterozygote resistant, SS homozygote susceptible