Table 1. Discriminating concentration of tested insecticides and the diagnostic time of insecticide exposure.

Who susceptible test	Insecticide	Discriminating concentration	Exposure Time
Adult assay	Permethrin	0.25%	60 min
	Deltamethrin	0.03%	60 min
	Malathion	0.8%	60 min
Larval assay	Temephos	0.012mg/L	24 h
		1.0mg/L	24 h