Seven day old rice seedlings(at least 15) of any local susceptible variety can be used for the recovery cages. the roots of the seedlings are wrapped in a half paper towel folded into three and placed in a container with enough water to avoid drying of the seedlings. Before insecticide treatment, the prepared seedlings are placed inside clear tumbler cages. The recovery cages are labeled with the insecticide treatment, doses, replications(Fig. 5.3)