Effect of leaf extract of Andrographis paniculata against cotton pest spotted bollworm Earias vittella
D Kiruba, N Thirunavukkarasu
The effects of methanolic extracts of Andrographis paniculata on the oviposition behavior, hatchability of eggs, larva, pupa and adult development of Earias vittella were investigated under laboratory conditions. Treatments included with difference concentrations of extract to compare with untreated control. Egg were dipped in different concentration (2,4 and 6) of extract with poor hatching. Larva fed on an extract sprayed cotton fruit slices. Adult fed on an extract containing 10% sucrose diet. There was poor egg laying.