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Spodoptera frugiperda  caused severe damage to the maize plant. Botanical insecticides are a choice to control this pest. This study aims to determine the ethanol extract of  Calophyllum soulattri  stem bark, methanol extract of  Piper aduncum  fruit, and  Sesamum indicum  oil, and their potential mixture for controlling  S. frugiperda . The bioassays were carried out in laboratory conditions using second instar  S. frugiperda  larvae from mass rearing in the laboratory. A toxicity test was performed using the leaf-residual feeding method. The result showed that the mortality of  S. frugiperda  for  C. soulattri  is LC 50  = 0.349% and LC 95  = 3.256% and that for  P. aduncum  is LC 50=  0.530% and LC 95  = 4.666%.  S. indicum  oil (at 10% concentration) only caused the mortality of  S. frugiperda  by 27.5%. Insecticide mixture can increase the toxicity of the insecticide. The observation mortality of  S. frugiperda  for  C. soulattri  and  P. aduncum  (1:2) extracts mixture were LC 50  = 0.233% and LC 95  = 0.808%. At the same time,  C. soulattri  extract dan  S. indicum  oil mixture (4:1) were LC 50  = 0.268% and LC 95  = 0.931%. The treatments with a single insecticide and their mixtures affected the biological activity of  S. frugiperda  by reducing the area of feed consumption, and the longer the larval development time, the lower the pupal weight of  S. frugiperda . Our findings indicated that a mixture of  C. soulattri  and  P. aduncum  extract, then  C. soulattri  extract, and  S. indicum  oil could potentially develop as effective insecticide for controlling  S. frugiperda.

Toxicity of Calophyllum soulattri, Piper aduncum, Sesamum indicum and their potential mixture for control Spodoptera frugiperda