Assessment of Toxicity of Parthenium hysterophorus L. Extract against Larvae of Trogoderma granarium

The leaves of parthenium (Parthenium hysterophorus L.) were extracted in ethanol and toxicity the extract was examined on khapra beetle (Trogoderma granarium Everts) larvae. Four concentrations (2, 4, 6 8 µL mL-1 acetone) applied directly larvae Petri dishes. Toxicity recorded after 12, 24 36 h. All had considerable effect mortality At highest concentration (8 mL-1), observed 57%, 72% 78% h, respectively. minimum to be 43% at 2 acetone 12 GC-MS analysis showed 7 compounds including phytol (38.68%), β-cubebene (11.98%), hexadecanoic acid, methyl ester (11.22%), caryophyllene (10.37%), 9,12,15-octadecatrienoic ethyl ester, (Z,Z,Z)- (9.98%), stearate (9.01%), (8.74%). study concluded that an is highly effective against beetles can cause h direct exposure