Table 1 Larvicidal activity of essential oils distilled from seven geographical regions of mugwort leaves in China against the 4th instar larvae of An. sinensis.

From: Repellency and insecticidal activity of seven Mugwort (Artemisia argyi) essential oils against the malaria vector Anopheles sinensis

Oila

LC50 (μg/mL) ± SEb

95% Confidence limits

Toxicity regression equation (y = a + bx)c

χ2

CQ

48.77 ± 7.40

41.60–55.18

y = -1.85 + 0.03x

3.21*

SC

54.24 ± 6.30

49.12–59.41

y = -3.14 + 0.05x

2.18*

YN

61.82 ± 5.48

53.61–69.39

y = -1.77 + 0.03x

4.51*

HB

40.23 ± 1.0

32.42–46.72

y = -1.59 + 0.04x

4.95*

HN

55.93 ± 0.29

49.51–62.12

y = -2.24 + 0.04x

2.99*

SD

59.31 ± 6.40

51.27–66.70

y = -1.76 + 0.03x

0.37*

GS

55.20 ± 8.50

48.00–61.88

y = -1.92 + 0.03x

2.58*

  1. aCQ, SC, YN, HB, HN, SD and GS: essential oils from Chongqing, Sichuan, Yunnan, Hubei, Henan, Shandong and Gansu province/municipality, respectively. bDetermined by log-probit analysis with at least 6 concentrations, and three repetitions “SE” denote standard error. cy stands for the probability transformation value of percent mortality of mosquitoes, and x for the concentration of essential oil, respectively. *Significant at p < 0.05.
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