Table 1. Percentage of cumulative mortality during the larval, pupal, and adult stages in control and pyriproxyfen-treated bees.

	Control water	Control acetone	Pyriproxyfen 23 ng	Pyriproxyfen 57 ng	χ² tests	P
Larval stage (day 7)	9.72	9.72	11.11	11.11	0.30	0.96
Pupal stage (day 15)	14.58	18.75	15.97	14.58	1.24	0.74
Adult stage (day 20)	22.22	29.86	24.31	24.31	2.46	0.48

For each treatment group and developmental stage, percentages were established from a total of 144 larvae.