Effectiveness of Some Bio-insecticides on Spodoptera frugiperda (J. E. Smith) and Sesamia cretica Lederer (Lepidoptera: Noctuidae).

Abstract

In this study, different bio-insecticides treatments were evaluated for their influence against larvae of Spodoptera frugiperda (J. E. Smith) and Sesamia cretica Lederer (Lepidoptera: Noctuidae) under laboratory and field conditions. The tested bio-insecticides were Tracer 24% SC (Spinosad), Vertemic 18% EC (Abamectin), BioPower (Beauveria bassiana), Bio-Catch (Lecanicillium lecanii) and Priority (Paecilomyces fumosoroseus). The obtained results revealed that the tested treatments on S. frugiperda and S. cretica varied under laboratory conditions. The insecticidal efficiency of the entomopathogenic fungi BioPower showed the highest toxic effect against larvae of S. frugiperda and S. cretica while the Priority insecticide showed the lowest. Abamectin was more effective for both larval species than spinosad. As well as the larvae of S. frugiperda were more susceptible to the tested bio-insecticides than the larvae of S. cretica. In the field study, all the treatments were found effective in reducing the larvae of S. frugiperda and S. cretica population and protecting maize plants compared with the control. The insecticide Vertemic 18% EC was found to be the best, followed by Tracer 24% SC, BioPower, Bio-Catch and finally Priority.