Ovicidal Activity and Ovipositional Repellent Properties of Synthetic Pyrethroids to the Fall Armyworm, Spodoptera Frugiperda
Abstract
Nine synthetic pyrethroids were tested in the laboratory for ovicidal activity to eggs of the fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). LC@^50 values ranged from 0.320 ppm (Pay-off@?) to 12.230 ppm (Pydrin@?). All pyrethroids were more toxic than diazinon, a standard. The pyrethroids also were effective ovipositional repellents. At their respective ovicidal concentrations cypermethrin (FMC Agricultural Chemical Group) was the least effective. At one-tenth of their respective ovicidal concentrations Ammo@? and cypermethrin (FMC) were the least effective.Downloads
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