Table 4 Fumigation toxicity of the essential oils extracted from seven geographical regions of Ar. argyi in China against female adults of An. sinensis.

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

Oil

LD50 (μL/L)a

95% confidence limit

Toxicity regression equation (y = a + bx)

χ2

CQ

14.95 ± 7.8

13.32–16.43

y = −1.65 + 0.11x

2.15*

SC

22.90 ± 5.5

20.82–25.08

y = −1.56 + 0.06x

2.91*

YN

51.26 ± 6.1

42.87–71.69

y = −2.36 + 0.04x

2.77*

HB

48.74 ± 2.1

39.09–76.29

y = −1.39 + 0.02x

4.15*

HN

26.49 ± 4.5

24.25–29.13

y = −1.70 + 0.06x

3.00*

SD

18.66 ± 1.2

16.75–20.44

y = −1.54 + 0.08x

3.55*

GS

9.40 ± 3.6

5.15–12.08

y = −1.51 + 0.16x

8.62*

  1. aDetermined with at least 6 concentrations at μL/L. *Significant at p < 0.05. CQ, SC, YN, HB, HN, SD and GS: essential oils from Chongqing, Sichuan, Yunnan, Hubei, Henan, Shandong and Gansu province/municipality, respectively.
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