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Table 1 Larval mortality and emergence inhibition of An. gambiae s.s. after exposure to neem oil and corn oil formulations.

From: Larvicidal effects of a neem (Azadirachta indica) oil formulation on the malaria vector Anopheles gambiae

 

Larval mortality †

Emergence inhibition

 

192 ‡

72

  

Oil

LC50

LC90

LC50

LC90

EI50

EI90

Neem

10.7 (7.55–12.15)

24.12 (12.37–37.68)

22.11 (17.14–31.42)

109.34 (65.48–256.20)

6.44 (5.01–7.99)

17.38 (14.62–21.91)

Corn

50.6 (37.96–88.69)

86.85 (62.29–133.67)

58.24 (42.24–121.66)

91.79 (63.54–208.38)

47.28 (14.40–91.27)

79.75 (16.65–135.36)

  1. † All concentrations in parts per million (ppm) with 95% confidence intervals between brackets; ‡ Hours after exposure. Six concentrations were tested and replicated with 50 mosquitoes six times each (n = 300). LC and EI values were determined by probit analysis (Finney 1971). Mortality was corrected using Abbott's formula (Abbott 1925) with values obtained from the negative control.
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Malaria Journal

ISSN: 1475-2875

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