Table 3 Frequencies of kdr 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 n (%) | RS n (%) | RR n (%) | ||||||
Lambda-cyhalothrin | Cx. p. pipiens | Susceptible | 23 (45.0) | Â | 14 (61.0) | 8 (35.0) | 1 (4.0) | 0.39 |
Resistant | 28 (55.0) | 49 | 4 (14.0) | 19 (68.0) | 5 (18.0) | 0.52 | ||
Total | 51 | Â | 18 (35.0) | 27 (53.0) | 6 (12.0) | 0.38 | ||
Hybrid | Susceptible | 25 (56.0) | Â | 17 (68.0) | 6 (24.0) | 2 (8.0) | 0.20 | |
Resistant | 20 (44.0) | 35 | 2 (10.0) | 16 (80.0) | 2 (10.0) | 0.50 | ||
Total | 45 | Â | 19 (42.0) | 22 (49.0) | 5 (11.0) | 0.35 | ||
Cx. p. molestus | Susceptible | 6 (40.0) | Â | 3 (50.0) | 3 (50.0) | 0 | 0.25 | |
Resistant | 9 (60.0) | 16 | 2 (22.0) | 7 (78.0) | 0 | 0.39 | ||
Total | 15 | Â | 5 (33.0) | 10 (67.0) | 0 | 0.33 | ||
Permethrin | Cx. p. pipiens | Susceptible | 28 (57.0) | Â | 9 (32.0) | 19 (68.0) | 0 | 0.34 |
Resistant | 21 (43.0) | 48 | 3 (14.0) | 14 (67.0) | 4 (19.0) | 0.52 | ||
Total | 49 | Â | 12 (24.5) | 33 (67.0) | 4 (8.0) | 0.42 | ||
Hybrid | Susceptible | 37 (64.0) | Â | 7 (19.0) | 28 (76.0) | 2 (5.0) | 0.43 | |
Resistant | 21 (36.0) | 48 | 3 (14.0) | 15 (72.0) | 3 (14.0) | 0.50 | ||
Total | 58 | Â | 10 (17.0) | 43 (74.0) | 5 (9.0) | 0.45 | ||
Cx. p. molestus | Susceptible | 9 (82.0) | Â | 3 (33.0) | 6 (67.0) | 0 | 0.33 | |
Resistant | 2 (18.0) | 5 | 1 (50.0) | 1 (50.0) | 0 | 0.25 | ||
Total | 11 | Â | 4 (36.0) | 7 (64.0) | 0 | 0.32 | ||
DDT | Cx. p. pipiens | Susceptible | 10 (14.0) | Â | 8 (80.0) | 2 (20.0) | 0 | 0.10 |
Resistant | 62 (86.0) | 67 | 10 (16.0) | 44 (71.0) | 8 (13.0) | 0.48 | ||
Total | 72 | Â | 18 (25.0) | 46 (64.0) | 8 (11.0) | 0.43 | ||
Hybrid | Susceptible | 4 (12.5) | Â | 2 (50.0) | 2 (50.0) | 0 | 0.25 | |
Resistant | 28 (87.5) | 30 | 2 (7.0) | 20 (71.5) | 6 (21.5) | 0.57 | ||
Total | 32 | Â | 4 (12.0) | 22 (69.0) | 6 (19.0) | 0.53 | ||
Cx. p. molestus | Susceptible | 4 (67.0) | Â | 0 | 4 (100) | 0 | 0.50 | |
Resistant | 2 (33.0) | 2 | 0 | 2 (100) | 0 | 0.50 | ||
Total | 6 | Â | 0 | 6 (100) | 0 | 0.50 | ||