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Table 1 Dose- mortality response of An. culicifacies species A and species C and An. stephensi against different doses of chlorfenapyr impregnated papers (2 h exposure and 48 h holding)

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

% Dose

Species

 

An. culicifacies

species A

(Ghaziabad, UP)

An. culicifacies

species C

(Jabalpur, MP)

An. stephensi

(Okhla, Delhi)

 

% mortality (No. exposed)

0.25

23.5 (102)

10.0 (100)

21.0 (100)

0.5

58.8 (102)

23.3 (180)

ND

0.75

86.2 (102)

54.0 (100)

74.0 (100)

1.0

88.2 (102)

74.0 (100)

91.2 (105)

1.5

96.0 (102)

93.0 (100)

95.0 (100)

2.0

99.0 (300)

99.2 (261)

99.5 (199)

2.5

100 (101)

100 (60)

ND

 

Lethal doses

LD 50 (FL)

0.41 (0.36-0.45)

0.67 (0.56-0.79)

0.43 (0.31-0.54)

LD 99 (FL)

2 (1.70-2.48)

2.39 (1.78-3.95)

2.13 (1.57-3.55)

χ 2 (df), P-value

3.392 (5), 0.640

20.46 (5), 0.001

9.46 (4), 0.05

  1. ND - Not done : FL- Fiducial limits
  2. χ 2 = heterogeneity of response, df = degrees of freedom