Table 2 Results of insecticide susceptibility tests on insecticide-susceptible (Sonepat and Nadiad) and -resistant (Goa) strains of An. stephens i and field-collected strains of An. culicifacies from Chhattisgarh and Gujarat states.
Species | Insecticides | Control | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | DDT 4.0% | Malathion 5.0% | Bendiocarb (0.1%) | Deltamethrin 0.05% | Chlorfenapyr 5.0% | OC | OP | PY |
Susceptible strains | ||||||||
An. stephensi (Sonepat) | 98.3 ± 2.3* (57) | 100 (48) | 100 (102) | 100 (68) | 100 (169) | 0 (35) | 0 (15) | 4.7 (21) |
An. stephensi (Nadiad ) | 95.9 ± 2.8* (50) | 98.0 ± 2.7* (48) | 100 (30) | 100 (49) | 100 (125) | 0 (16) | 0 (45) | 0 (17) |
Resistant strain | ||||||||
An. stephensi (Goa) | 10.3 ± 5.1* (77) | 26.2 ± 5.9* (46) | 23.4 ± 2.1* (94) | 84.9 ± 3.5* (47) | 100 (116) | 0 (15) | 0 (36) | 0 (15) |
Field collected strain - Raipur | ||||||||
An. culicifacies | 4.2 ± 2.1* (120) | 73.3 ± 3.9* (116) | 80 ± 3.6* (30) | 78.2 ± 2.5* (124) | 100 (211) | 0 (48) | 0 (50) | 0 (18) |
Field collected strain - Panchmahals | ||||||||
An. culicifacies | 6.4 ± 2.6* (140) | 30.1 ± 3.2* (123) | 93.7 ± 2.7* (80) | 43.1 ± 3.1* (130) | 100 (60) | 0 (21) | 0 (39) | 0 (20) |
Field collected strain - Vadodara | ||||||||
An. culicifacies | 11.6 ± 2.9* (120) | 41.1 ± 3.6* (124) | 93.7 ± 3.2* (80) | 59.2 ± 3.4* (130) | 100 (60) | 0 (20) | 0 (40) | 0 (20) |