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Larvicidal activity of ipomoea carnea jace plant extractsagainst spodoptera litura fab

Author: 
Vetal D. S and A.B. Pardeshi
Abstract: 

Larvicidal activity of aqueous and ethanol leaf extracts of Ipomoea carnea were studied against third instar larvae of Spodoptera litura at different concentration (5, 10, 15, 20 and 25 mg/ml). The plant leaves were dried, powdered and extracted in soxhlet apparatus in aqueous and ethanol solvent for 24 hrs. The third instar larvae of S. litura were exposed to various concentration and percent mortality were recorded after 96hrs. The larvicidal activity of leaves extract of I. carnea were (LD 10= 12.45 mg/ml, LD 50= 22.24 mg/ml) in aqueous and (LD10= 5.62mg/ml, LD 50= 14.69 mg/ml) in ethanol respectively. Results revealed that the mortality was increased with increasing in concentration of the plant extracts. The ethanol solvent extract of I. carnea showed higher larvicidal property against third instars larvae of S. litura. Statistical variance, 95 % confidence limits and regression equations are presented