Table 1. Lethal pyriproxyfen concentrations to Aedes aegypti larvae after 24 h exposure.

Lethal Concentration (LC)	Estimated value (mg L−1)	Confidence limits		χ2
		Inferior	Superior
LC25	7.22	6.75	7.60	20.20
LC50	8.20	7.81	8.57
LC75	9.31	8.90	9.82
LC90	10.5	10.0	11.4

Note:

χ², Chi-squared value for lethal concentrations and fiducial limits based on a log scale with significance level at P < 0.001.