The crude methanol extract from Alangium salvifolium leaf was tested against Spodoptera litura larvae.
Isolation of active compounds was done through column chromatography and GC–MS analysis.
Significant mortality and decreased nutritional indices were observed after treatment with A. salvifolium.
Cell organelles and digestive physiology of S. litura were affected after treatment with A. salvifolium.
The acid and alkaline phosphatase and lactate dehydrogenase activities decreased in treated larvae compared with control.