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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.

From: Chlorfenapyr: a new insecticide with novel mode of action can control pyrethroid resistant malaria vectors

Species Insecticides Control
  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)
  1. * - % Mortality + SE Figures in parentheses indicate number of mosquitoes exposed; OC: Organochlorine; OP: Organophosphate; PY: Pyrethroid; WHO criteria of adult susceptibility- susceptible- mortality between 98% and 100%; verification required-mortality between 97% and 80%, and resistant-mortality lower than 80%.