Fifth instar larvae were placed either in a cylindrical
screened cage or in large plastic pots (19 liters) at a
depth of 10 cm. Each treatment with or without cages
was replicated four times in space and twice in time.
About 36,000 IJs/pot (54 IJs/cm2) of each species were
applied per pot except for the control. Larval mortality
was recorded after 7 days.