Phytochemical Profiling and Larval Control of Erythrina variegata Methanol Fraction against Malarial and Filarial Vector
Table 2
Larvicidal activity of E. variegata extracts against An. stephensi and Cx. quinquefasciatus.
Species
Solvents
LC50 (g/ml) 24 h
LC99 (g/ml) 24 h
values (df)
values
Significant
An. stephensi
Hexane
234.01
449.51
3.03 (3)
y= 4.014 +9.585
0.386
(0.996)
Ethyl acetate
180.07
377.66
2.19 (3)
y= 2.928 +1.408
0.533
(0.990)
Chloroform
222.21
456.18
3.10 (3)
y= 3.728 +7.951
0.376
(0.991)
Methanol
157.69
339.55
5.72 (3)
y= 2.857 +3.577
0.126
(0.995)
Cx. Quinquefaciatus
Hexane
206.31
418.47
3.74 (3)
y= 4.157 +8.482
0.290
(0.999)
Ethyl acetate
148.65
316.67
13.00 (3)
y= 3.242 +2.322
0.005
(0.989)
Chloroform
178.12
380.83
6.73 (3)
y= 3.885 +4.634
0.081
(0.998)
Methanol
137.67
297.33
16.21 (3)
y= 2.485 +7.245
0.001
(0.981)
Values represent mean of five replications; mortality of the after 24 h of exposure period; LC50= lethal concentration brings out 50% mortality; LC99= lethal concentration brings out 99% mortality; different letters (a, b, c, and d) within the same row; R2 = regression; = chi-squire; df = degree of freedom; significant at p<0.05.
