Efficacy of Datura leaf extract against fruit borer, Helicoverpa armigera (Hubner) on Tomato, Lycopersicon esculentum (Mill)

A field and laboratory experiments were conducted during rabi season, 2014-15 to find out the efficacy of different concentration of the Datura alba @ 5%, 10%, 15%, 20%, and 25%, were sprayed, Cypermethrin 25 EC (0.07% ) also sprayed including a untreated control. Cypermethrin 25 EC (0.07%) shows significant reduction in the larval population of Helicoverpa armigera Hubner in field condition, and also recorded highest mortality percentage in laboratory condition. Among the different concentration of D. alba, D. alba 25% performed significant reduction in field condition and highest mortality in laboratory condition as compared with other D. alba concentration