Potential of Achyrocline satureioides Ethanolic Extract in the Control of Spodoptera littoralis

The species Spodoptera littoralis is one of the most destructive agricultural pests in tropical and subtropical areas, causing significant losses to farmers; alternative forms of control are therefore necessary. This study aims to evaluate ethanolic extracts from leaves and inflorescences of Achyrocline satureioides as a potential control agent for Spodoptera littoralis. The ethanolic extract was prepared via maceration and a bioassay was carried out in five replications with sixth instar S. littoralis larvae, using the Food Deterrence methodology; the larvae continued to feed until they had eaten 75% of the control or sample. The results demonstrated that the extracts from A. satureioides leaves and inflorescences at a concentration of 10 mg/mL inhibited 37.23% and 22.72% of S. littoralis feeding, respectively, indicating that the extracts have an inhibitory effect.