Table 4.

Insecticidal activity of the extracts of Ailanthus altissima against second-instar yellow fever mosquito larvae (Aedes aegypti) 24 h post-treatment^*.

Fraction A	Conc. (ppm)	0	49	195	778
	Mortality (%)	0	0	50	100
Fraction B	Conc. (ppm)	0	46	182	726
	Mortality (%)	0	0	0	7
Fraction C	Conc. (ppm)	0	38	150	778
	Mortality (%)	0	0	0	0
α-terthienyl	Conc. (ppm)	0	0.1	1.0**	-
	Mortality (%)	0	100	100	-

^*Data are the average of three replicates. ^** Tested in dark. The others are in the ambient room light.