Table 2.

Efficacy of different concentrations of polar and non-polar solvent extracts of the green berries of S. villosum on third instar larvae of S. aegypti. M, mortality (%); S, survivality (%).

Type of solvents	Concentrations (ppm)	Period of exposure (hours)
		24		48		72
		M	S	M	S	M	S
Petroleum ether	50	3.33	96.67	6.67	93.33	13.33	86.67
	25	3.33	96.67	3.33	96.67	10	90
	15	0	100	3.33	96.67	6.67	93.33
Benzene	50	6.67	93.33	13.33	86.67	23.33	76.67
	25	3.33	96.67	6.67	93.33	16.67	83.33
	15	3.33	96.67	6.67	93.33	13.33	86.67
Chloroform: methanol	50	70	30	73.33	26.66	76.66	23.33
	25	53.33	46.66	56.66	43.33	56.66	43.33
	15	40	60	43.33	56.66	43.33	56.66
Acetone	50	6.67	93.33	10	90	13.33	86.67
	25	6.67	93.33	10	90	10	90
	15	3.33	96.67	6.67	93.33	10	90
Absolute alcohol	50	30	70	36.67	63.63	50	50
	25	13.33	86.67	23.33	76.67	33.33	66.67
	15	10	90	16.67	83.33	26.67	73.33