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Table 3 Lethal and sub-lethal toxicity of herbaceous extract against Spodoptera litura larvae

From: Toxicity and lethal effects of herbaceous plant crude extracts against Spodoptera litura

Herbaceous Plants

LC50 (µg/ml)

95% Confidence limits

LC99 (µg/ml)

Regression equation (Y = a + bX)

Fit of probit line

n

Lower bound

Upper bound

Heterogeneity factor (χ2)

Slope (± S.E)

df

Phyllanthus niruri

6.75

5.01

9.27

130.42

Y = 1.5 + 1.809X

1.55

1.809 ± 0.296

3

90

Cyperus rotundus

5.74

4.18

8.07

143.34

Y = 1.264 + 1.665X

2.843

1.665 ± 0.271

3

90

Euphorbia hirta

13.62

12.72

14.27

21.56

Y = 13.239 + 11.671X

3.196

11.671 ± 2.071

3

90

Boerhavia diffusa

10.92

9.51

12.19

30.31

Y = 5.451 + 5.249X

3.202

5.249 ± 0.764

3

90

Parthenium hysterophorus

4.09

2.313

6.063

213.91

Y = 0.829 + 1.345X

6.425

1.354 ± 0.242

3

90

Cynodon dactylon

1.45

0.87

2.09

45.67

Y = 0.2551.555X

4.877

1.555 ± 0.256

3

90

  1. df degree of freedom, χ2 values were not significant for all the assays