Concentrations of

A . vernalis

%Mortality (Mean ± Standard Deviation)

Average mortality

(%)

24 h

48 h

27 h

10

51.4d ± 1.15

53.4d ± 0.30

55.2d ± 0.15

53.3d

15

62.7c ± 0.40

65.4c ± 0.35

69.3c ± 0.21

65.8c

20

71.2b ± 0.67

73.5b ± 0.35

77.0b ± 0.50

73.9b

25

81.5a ± 0.25

85.3a ± 0.32

88.2a ± 0.31

85.0a

Control

0.0e ± 0.0

0.0e ± 0.0

0.0e ± 0.0

0.0e

LSD

1.1506

0.539

0.5231

0.479

Probability

0.0001

0.0001

0.0001

0.0001