Larvicidal activity of plant extract of Triumfetta pentandra against agricultural insect pest Spodoptera litura and Helicoverpa armigera. The Plant extract in deferent solvent were prepared various concentrations for 5%, 2.5%, 1`25% and 0.625% and tested against fourth instar larvae of Spodoptera litra and Helicoverpa armigera. Then agricultural insect pest Spodoptera litura larval mortality were recorded for highest percentage in 5% plant extract of Triumfetta pentandra (ethyl acetate) on larval mortality were 87.23% and followed by 2.5% concentration of larval mortality in 69.12%, 1.25% concentration of larval mortality were 47.56% and then 0.625% concentration of larval mortality in recorded 31.92% at 24hrs respectively. Then agricultural insect pest Helicoverpa armigera larval mortality were recorded for highest percentage in 5% plant extract T. pentandra on larval mortality were 81.23% and followed by 2.5% plant extract of T. pentandra larval mortality in 66.54%, 1.25% concentration of larval mortality were 40.52% and then 0.625% concentration of larval mortality in recorded 27.90% respectively. The future generation former men used for Triumfetta pentandra against target agricultural insect pest Spodoptera litura and Helicoverpa armigera controlled by plant based properties respectively