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Table 2 Toxicity of test compounds against the colony of An. gambiae s.s. in laboratory and semi-field conditions

From: Anti-mosquito properties of Pelargonium roseum (Geraniaceae) and Juniperus virginiana (Cupressaceae) essential oils against dominant malaria vectors in Africa

Compounds

Environment

Lethal

Exposure times (24–72 h)

LC50/LC90 (LCL-UCL) 95%

CI (ppm)

24 h

48 h

72 h

JVO

LB

LC50

10.82 (8.61–13.68)

7.35 (5.55–9.54)

2.89 (1.36–4.33)

LC90

24.96 (18.80-39.64)

21.52 (15.48–37.17)

13.46 (9.00-28.78)

SF

LC50

10.75 (8.61–13.56)

10.11 (8.08–12.72)

9.06 (7.01–11.59)

LC90

23.87 (18.09–37.63)

22.44 (17.03–35.35)

22.95 (16.95–37.58)

PRO

LB

LC50

7.13 (5.25–9.56)

1.26 (0.29–2.39)

0.90 (0.12–1.92)

LC90

27.59 (18.83–50.32)

13.33 (7.80-37.03)

10.37 (5.94–29.17)

SF

LC50

13.63 (7.19–28.36)

10.65 (5.03–23.61)

8.98 (4.93–16.23)

LC90

43.06 (22.39-278.05)

46.39 (21.56-432.92)

39.34 (20.50-180.23)

PRO constituents

CO

LB

LC50

12.44 (9.49–16.49)

6.98 (4.89–9.67)

1.81 (0.67–3.03)

LC90

41.43 (28.91–72.27)

35.31 (22.76–71.82)

15.12 (9.18–38.20)

SF

LC50

16.29 (8.67–34.31)

15.28 (7.62–34.94)

14.79 (7.62–31.96)

LC90

59.85 (29.79-406.81)

71.03 (32.02-681.41)

70.90 (32.60-571.30)

GO

LB

LC50

13.43 (10.00-18.24)

6.76 (2.94–13.04)

3.64 (2.11–5.37)

LC90

54.11 (36.05-102.03)

44.09 (20.40-341.20)

25.03 (15.41–58.48)

SF

LC50

15.48 (11.59–20.98)

16.60 (12.60-22.17)

15.48 (11.59–20.98)

LC90

59.76 (40.08-111.27)

57.18 (39.42-101.56)

59.76 (40.08-111.27)

LO

LB

LC50

127.02 (43.87-136539.47)

16.16 (8.87–32.82)

0.48 (0.00-1.87)

LC90

1451.18 (208.06-32552746815.41)

482.79 (145.11-8638.88)

48.79 (17.91-2121.94)

SF

LC50

87.43 (49.95-249.19)

64.44 (37.47-167.69)

41.69 (24.57–98.25)

LC90

887.87 (293.68-10638.56)

799.04 (262.91–9163.00)

682.13 (220.69-8071.05)

MO

LB

LC50

39.52 (13.36-2934.82)

13.42 (4.40-48.54)

1.01 (0.08–2.51)

LC90

183.90 (55.60-394844279.08)

248.41 (61.08-159509.43)

33.16 (15.44-222.24)

SF

LC50

32.12 (15.81–93.08)

27.16 (13.12–88.32)

16.44 (6.55–57.53)

LC90

99.89 (47.64-2206.37)

142.43 (54.61-4122.66)

127.80 (42.27-10660.87)

MIX

LB

LC50

84.72 (42.27-377.75)

4.91 (1.42–9.73)

0.17 (0.00-1.14)

LC90

1950.88 (418.83-107720.76)

268.76 (79.73-8325.05)

29.76 (10.44-3860.67)

SF

LC50

97.53 (52.31-339.62)

65.01 (34.05-233.02)

34.10 (18.33–99.61)

LC90

1235.35 (350.49-24425.89)

1485.44 (351.84-52350.81)

1163.09 (268.38-50690.93)

  1. LC 50 /LC 90 lethal concentration causing 50/90% mortality, 95% CI confidence interval with a 95%, probability ppm: parts per million, LB laboratory conditions, SF semi-field conditions, JVO Juniperus virginiana, PRO Pelargonium roseum, GO Geraniol, CO Citronellol, LO Linalool, MO L-Menthone, MIX mixture of all four ingredients
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Malaria Journal

ISSN: 1475-2875

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