TY - GEN AU - Rao,G.R. TI - Significance of vegetable oils as synergists against the larvae of Spodoptera litura ( Fabricius ) KW - Plant oils KW - Spodoptera litura KW - Synthetic pyrethrins KW - Insecticides KW - Methods KW - Bioassays KW - Cypermethrin KW - Fenvalerate ER -