LABORATORY TESTS AND FIELD TRAHS OF FIPRONIL AGAINST RICE INSECT PESTS Realized heritability of resistance to butene-fipronil in diamondback moth, Plutella xylostella Synergism of rotenone mixed with fipronil and their effectiveness to Phyllotreta striolata Bioactivity of butene-fipronil and its field efficacy against diamondback mouth, Plutella xylostella L.